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SMD code search: identify a part by its marking

2 parts in SOT-23-8 are printed 1224.

2 parts in SOT-23-8 are printed 1224

Not sure which one you have?

Answer up to 4 quick questions and these 2 parts are ranked, with a meter test that settles it. It works on a dead part too.

Operational amplifier, all SOT-23-8, 8 pins, all Global Mixed-mode Technology.

  • G1224TMDSOT-23-8
    What it is
    Operational amplifier
    Maker
    Global Mixed-mode Technology
    Package
    SOT-23-8
    Pins
    8
    Source
    Manufacturer datasheet

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • G1224TMUSOT-23-8
    What it is
    Operational amplifier
    Maker
    Global Mixed-mode Technology
    Package
    SOT-23-8
    Pins
    8
    Source
    Manufacturer datasheet

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

52 more parts have codes that begin with 1224: none in SOT-23-8, 52 with no package on record

Codes that begin with 1224

For a marking with its end worn or burnt off. Each one shows its full printed code.

48 parts have no package on record. Nothing rules them out, so they stay.

  • PZ1AFC24Bprinted 1Z24BZener diode, PanjitZener diodePanjit

    Printed 1Z24B. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Zener diode
    Maker
    Panjit
    Package
    Not recorded
    Pins
    Not recorded
    Source
    Manufacturer datasheet

    Is it dead?

    Diode range for the forward check, part lifted, red probe on the anode. A bench supply for the Zener voltage.

    Working, it reads

    About 0.6 to 0.8 V forward and open in reverse on the diode range. Its Zener voltage shows only on a supply: feed it through a resistor that sets about 5 mA, cathode to positive, read quickly, and it should hold near its rated voltage.

    Dead, it reads

    • The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
    • Open both ways, forward too: failed open.
    • Holds well off its rated voltage on the supply test: drifted.
    • A soft knee, or a voltage that creeps on the supply test: leaky.
    On the board
    this is a first look only: the meter reads every path between those pins, and a short can be a neighbour. Lift one leg before you condemn it.
    Compare:
    If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
    Watch for:
    A meter's diode range stops at about 2 to 3 V, so almost every Zener reads open in reverse on it, good or bad; a 3 V meter may just show a 2.4 or 2.7 V part. Above about 3 V the meter cannot tell a Zener from a plain diode.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A0L3D2-Gprinted L224ALDC-DC converter, TorexDC-DC converterTorex

    Printed L224AL. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 0.85V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A0M3D2-Gprinted L224AMDC-DC converter, TorexDC-DC converterTorex

    Printed L224AM. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 0.95V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1A3D2-Gprinted L224BADC-DC converter, TorexDC-DC converterTorex

    Printed L224BA. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.05V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1B3D2-Gprinted L224BBDC-DC converter, TorexDC-DC converterTorex

    Printed L224BB. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.15V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1C3D2-Gprinted L224BCDC-DC converter, TorexDC-DC converterTorex

    Printed L224BC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.25V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1D3D2-Gprinted L224BDDC-DC converter, TorexDC-DC converterTorex

    Printed L224BD. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.35V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1E3D2-Gprinted L224BEDC-DC converter, TorexDC-DC converterTorex

    Printed L224BE. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.45V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1F3D2-Gprinted L224BFDC-DC converter, TorexDC-DC converterTorex

    Printed L224BF. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.55V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1H3D2-Gprinted L224BHDC-DC converter, TorexDC-DC converterTorex

    Printed L224BH. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.65V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1K3D2-Gprinted L224BKDC-DC converter, TorexDC-DC converterTorex

    Printed L224BK. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.75V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1L3D2-Gprinted L224BLDC-DC converter, TorexDC-DC converterTorex

    Printed L224BL. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.85V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A1M3D2-Gprinted L224BMDC-DC converter, TorexDC-DC converterTorex

    Printed L224BM. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.95V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2A3D2-Gprinted L224CADC-DC converter, TorexDC-DC converterTorex

    Printed L224CA. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.05V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2B3D2-Gprinted L224CBDC-DC converter, TorexDC-DC converterTorex

    Printed L224CB. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.15V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2C3D2-Gprinted L224CCDC-DC converter, TorexDC-DC converterTorex

    Printed L224CC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.25V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2D3D2-Gprinted L224CDDC-DC converter, TorexDC-DC converterTorex

    Printed L224CD. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.35V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2E3D2-Gprinted L224CEDC-DC converter, TorexDC-DC converterTorex

    Printed L224CE. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.45V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2F3D2-Gprinted L224CFDC-DC converter, TorexDC-DC converterTorex

    Printed L224CF. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.55V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2H3D2-Gprinted L224CHDC-DC converter, TorexDC-DC converterTorex

    Printed L224CH. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.65V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2K3D2-Gprinted L224CKDC-DC converter, TorexDC-DC converterTorex

    Printed L224CK. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.75V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2L3D2-Gprinted L224CLDC-DC converter, TorexDC-DC converterTorex

    Printed L224CL. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.85V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A2M3D2-Gprinted L224CMDC-DC converter, TorexDC-DC converterTorex

    Printed L224CM. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.95V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A3A3D2-Gprinted L224DADC-DC converter, TorexDC-DC converterTorex

    Printed L224DA. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 3.05V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A3B3D2-Gprinted L224DBDC-DC converter, TorexDC-DC converterTorex

    Printed L224DB. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 3.15V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A3C3D2-Gprinted L224DCDC-DC converter, TorexDC-DC converterTorex

    Printed L224DC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 3.25V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A083D2-Gprinted L224A8DC-DC converter, TorexDC-DC converterTorex

    Printed L224A8. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 0.8V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A093D2-Gprinted L224A9DC-DC converter, TorexDC-DC converterTorex

    Printed L224A9. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 0.9V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A103D2-Gprinted L224B0DC-DC converter, TorexDC-DC converterTorex

    Printed L224B0. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.0V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A113D2-Gprinted L224B1DC-DC converter, TorexDC-DC converterTorex

    Printed L224B1. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.1V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A123D2-Gprinted L224B2DC-DC converter, TorexDC-DC converterTorex

    Printed L224B2. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.2V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A133D2-Gprinted L224B3DC-DC converter, TorexDC-DC converterTorex

    Printed L224B3. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.3V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A143D2-Gprinted L224B4DC-DC converter, TorexDC-DC converterTorex

    Printed L224B4. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.4V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A153D2-Gprinted L224B5DC-DC converter, TorexDC-DC converterTorex

    Printed L224B5. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.5V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A163D2-Gprinted L224B6DC-DC converter, TorexDC-DC converterTorex

    Printed L224B6. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.6V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A173D2-Gprinted L224B7DC-DC converter, TorexDC-DC converterTorex

    Printed L224B7. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.7V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A183D2-Gprinted L224B8DC-DC converter, TorexDC-DC converterTorex

    Printed L224B8. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.8V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A193D2-Gprinted L224B9DC-DC converter, TorexDC-DC converterTorex

    Printed L224B9. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 1.9V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A203D2-Gprinted L224C0DC-DC converter, TorexDC-DC converterTorex

    Printed L224C0. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.0V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A213D2-Gprinted L224C1DC-DC converter, TorexDC-DC converterTorex

    Printed L224C1. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.1V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A223D2-Gprinted L224C2DC-DC converter, TorexDC-DC converterTorex

    Printed L224C2. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.2V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A233D2-Gprinted L224C3DC-DC converter, TorexDC-DC converterTorex

    Printed L224C3. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.3V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A243D2-Gprinted L224C4DC-DC converter, TorexDC-DC converterTorex

    Printed L224C4. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.4V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A253D2-Gprinted L224C5DC-DC converter, TorexDC-DC converterTorex

    Printed L224C5. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.5V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A263D2-Gprinted L224C6DC-DC converter, TorexDC-DC converterTorex

    Printed L224C6. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.6V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A273D2-Gprinted L224C7DC-DC converter, TorexDC-DC converterTorex

    Printed L224C7. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.7V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A283D2-Gprinted L224C8DC-DC converter, TorexDC-DC converterTorex

    Printed L224C8. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.8V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

  • XCL224A293D2-Gprinted L224C9DC-DC converter, TorexDC-DC converterTorex

    Printed L224C9. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    DC-DC converter
    Maker
    Torex
    Package
    Not recorded
    Pins
    Not recorded
    Details
    DC/DC voltage converter IC: PWM/PFM st-dwn, 2.9V±2%, 700mA, 3MHz, +CE
    Source
    Published code list

    Is it dead?

    Voltage with the board powered; ohms from each pin to ground with it off.

    Working, it reads

    Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.

    Dead, it reads

    • A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
    • Supply present, output stuck: failed, or its load has.
    On the board:
    A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
    Compare:
    The surest reference is the same IC on a working board, measured pin by pin.
    Watch for:
    Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.

    A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

4 more parts are not listed here. Type more of the code to narrow the list.

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One code, several parts

Marking codes are not unique. In the standard code book, 6H on a SOT-23 is an NPN transistor, a varicap, an N-channel JFET, two digital transistors, a 3.6 V voltage detector: six parts from five makers. So a search on WhatSMD (What SMD) shows the parts we hold under that code and under codes easily misread as it, with only the columns that tell them apart.

6Hon a SOT-23, in the code book
  • NPN transistor
  • Varicap
  • N-channel JFET
  • Digital transistor ×2
  • 3.6 V voltage detector

When more than one is left

Tap Help me choose. Up to 4 quick answers: whether the part has failed, then what separates the parts left. Those get ranked with the reasoning and a test that settles it. That uses one identification: 2 a month are free without an account, and 3 with a free account.

When you cannot read it

Tap the camera in the field. We read the characters, keep the ones we are unsure of, and search every reading. A photo too soft to read is turned back on your phone first; if it is the only one you can get, you can still send it.

Get the app

The same search on your phone, and a camera with a light, zoom and tap to focus for a marking you cannot read. Sign in with your email address to use the same account.

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