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SMD code search: identify a part by its marking

No part printed 2A2 is recorded in USP-6B. 2 printed with a similar-looking code.

No part printed 2A2 is recorded in USP-6B

Not sure which one you have?

Answer up to 4 quick questions and these 3 parts are ranked, with a meter test that settles it. It works on a dead part too.

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

  • PLZ2V2AZener diode, VishayZener diodeNot recordedVishay
    What it is
    Zener diode
    Maker
    Vishay
    Package
    Not recorded
    Pins
    Not recorded
    Details
    2.2 V Zener diode
    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.

  • QG202JDRectifier, SeCoSRectifierNot recordedSeCoS
    What it is
    Rectifier
    Maker
    SeCoS
    Package
    Not recorded
    Pins
    Not recorded
    Source
    Manufacturer datasheet

    Is it dead?

    Diode range, part lifted or one leg off the pad. Red probe on the anode.

    Working, it reads

    About 0.5 to 0.8 V anode to cathode, and open the other way. Small switching diodes read about 0.6 to 0.7 V; large rectifiers can read a little lower.

    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: failed open.
    • A reading the wrong way round as well: 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 three-pin body can hold two diodes. With a common pin they read two junctions from that pin, just like a transistor; in series they read two drops end to end. Test each pair the datasheet names.

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

  • S-13R1A38-A4T2U34 pins, ABLICNot recorded4 pinsABLIC
    What it is
    Not recorded
    Maker
    ABLIC
    Package
    Not recorded
    Pins
    4
    Details
    equivalent [3.8V LDO]
    Source
    Published code list

    Is it dead?

    Voltage, board powered, black probe on ground. Then ohms with the power off.

    Working, it reads

    Input pin at the supply, output pin at its rated voltage, and the enable pin high if it has one.

    Dead, it reads

    • Output equal to the input: the pass element has shorted. Everything after it may have taken the full input.
    • Input present, enable high, no output: failed open, or holding itself off into a shorted load. Power off and measure output to ground.
    • Power off, input to output near 0 Ω: shorted.
    On the board:
    An output at 0 V is often a shorted load with the regulator in current limit. Lift the output pin: if the short stays on the board, the regulator may be fine.
    Compare:
    The same regulator on another rail or another board shows the right voltages and the right resistances.
    Watch for:
    Makers put input, output and ground on different pins in the same package, so take them from this part's datasheet. Diode or ohms readings between its pins say little; check it powered.

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

2 more parts are printed with a code easy to misread as 2A2: none in USP-6B, 2 with no package on record

Printed with a code easy to misread

One character differs, and it is one that is easy to confuse under a lamp. The odd one out is marked on each.

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

  • TPD2E001DRLprinted 2AZESD protection diode, 5 pins, Texas InstrumentsESD protection diode5 pinsTexas Instruments

    Printed 2AZ on the part. Easy to misread as 2A2. Check that character with a loupe before you order anything.

    What it is
    ESD protection diode
    Maker
    Texas Instruments
    Package
    Not recorded
    Pins
    5
    Details
    Low-Capacitance 2-Channel ESD-Protection for High-Speed Data Interfaces
    Source
    Manufacturer datasheet

    Is it dead?

    Diode range, from the protected line to ground, part lifted if you can.

    Working, it reads

    A one-way part reads about 0.6 to 0.8 V forward and open in reverse. A two-way part reads open both ways. Arrays with several lines read as the datasheet's diagram draws them.

    Dead, it reads

    • From the line to ground, the same reading both ways, near 0 V with a continuous beep: shorted.
    • A reading both ways on a one-way part: leaky.
    • A one-way part open both ways: failed open.
    On the board
    , a line reading shorted to ground can be this part or anything else on that line. Lift it: if the short goes with it, it has failed.
    Compare:
    The same part on the next line or connector pin is the healthy reading to compare with.
    Watch for:
    A two-way part reads open both ways when it is good, exactly like one that has failed open. The meter cannot tell them apart; an identical part on the next line can.

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

  • S-13R1A37-A4T2U3printed 2AZ4 pins, ABLICNot recorded4 pinsABLIC

    Printed 2AZ on the part. Easy to misread as 2A2. Check that character with a loupe before you order anything.

    What it is
    Not recorded
    Maker
    ABLIC
    Package
    Not recorded
    Pins
    4
    Details
    equivalent [3.7V LDO]
    Source
    Published code list

    Is it dead?

    Voltage, board powered, black probe on ground. Then ohms with the power off.

    Working, it reads

    Input pin at the supply, output pin at its rated voltage, and the enable pin high if it has one.

    Dead, it reads

    • Output equal to the input: the pass element has shorted. Everything after it may have taken the full input.
    • Input present, enable high, no output: failed open, or holding itself off into a shorted load. Power off and measure output to ground.
    • Power off, input to output near 0 Ω: shorted.
    On the board:
    An output at 0 V is often a shorted load with the regulator in current limit. Lift the output pin: if the short stays on the board, the regulator may be fine.
    Compare:
    The same regulator on another rail or another board shows the right voltages and the right resistances.
    Watch for:
    Makers put input, output and ground on different pins in the same package, so take them from this part's datasheet. Diode or ohms readings between its pins say little; check it powered.

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

71 more parts have codes that begin with 2A2: 70 in USP-6B, 1 with no package on record

Codes that begin with 2A2

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

DC-DC converter, all USP-6B, 6 pins, all Torex.

  • XC6372A200Dprinted 2A200USP-6B

    Printed 2A200. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.0V±2.5%, 100mA
    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.

  • XC6372A201Dprinted 2A201USP-6B

    Printed 2A201. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.0V±2.5%, 100mA
    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.

  • XC6372A202Dprinted 2A202USP-6B

    Printed 2A202. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.0V±2.5%, 100mA
    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.

  • XC6372A210Dprinted 2A210USP-6B

    Printed 2A210. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.1V±2.5%, 100mA
    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.

  • XC6372A211Dprinted 2A211USP-6B

    Printed 2A211. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.1V±2.5%, 100mA
    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.

  • XC6372A212Dprinted 2A212USP-6B

    Printed 2A212. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.1V±2.5%, 100mA
    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.

  • XC6372A220Dprinted 2A220USP-6B

    Printed 2A220. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.2V±2.5%, 100mA
    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.

  • XC6372A221Dprinted 2A221USP-6B

    Printed 2A221. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.2V±2.5%, 100mA
    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.

  • XC6372A222Dprinted 2A222USP-6B

    Printed 2A222. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.2V±2.5%, 100mA
    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.

  • XC6372A230Dprinted 2A230USP-6B

    Printed 2A230. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.3V±2.5%, 100mA
    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.

  • XC6372A231Dprinted 2A231USP-6B

    Printed 2A231. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.3V±2.5%, 100mA
    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.

  • XC6372A232Dprinted 2A232USP-6B

    Printed 2A232. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.3V±2.5%, 100mA
    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.

  • XC6372A240Dprinted 2A240USP-6B

    Printed 2A240. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.4V±2.5%, 100mA
    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.

  • XC6372A241Dprinted 2A241USP-6B

    Printed 2A241. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.4V±2.5%, 100mA
    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.

  • XC6372A242Dprinted 2A242USP-6B

    Printed 2A242. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.4V±2.5%, 100mA
    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.

  • XC6372A250Dprinted 2A250USP-6B

    Printed 2A250. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.5V±2.5%, 100mA
    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.

  • XC6372A251Dprinted 2A251USP-6B

    Printed 2A251. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.5V±2.5%, 100mA
    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.

  • XC6372A252Dprinted 2A252USP-6B

    Printed 2A252. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.5V±2.5%, 100mA
    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.

  • XC6372A260Dprinted 2A260USP-6B

    Printed 2A260. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.6V±2.5%, 100mA
    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.

  • XC6372A261Dprinted 2A261USP-6B

    Printed 2A261. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.6V±2.5%, 100mA
    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.

  • XC6372A262Dprinted 2A262USP-6B

    Printed 2A262. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.6V±2.5%, 100mA
    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.

  • XC6372A270Dprinted 2A270USP-6B

    Printed 2A270. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.7V±2.5%, 100mA
    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.

  • XC6372A271Dprinted 2A271USP-6B

    Printed 2A271. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.7V±2.5%, 100mA
    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.

  • XC6372A272Dprinted 2A272USP-6B

    Printed 2A272. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.7V±2.5%, 100mA
    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.

  • XC6372A280Dprinted 2A280USP-6B

    Printed 2A280. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.8V±2.5%, 100mA
    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.

  • XC6372A281Dprinted 2A281USP-6B

    Printed 2A281. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.8V±2.5%, 100mA
    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.

  • XC6372A282Dprinted 2A282USP-6B

    Printed 2A282. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.8V±2.5%, 100mA
    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.

  • XC6372A290Dprinted 2A290USP-6B

    Printed 2A290. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.9V±2.5%, 100mA
    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.

  • XC6372A291Dprinted 2A291USP-6B

    Printed 2A291. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.9V±2.5%, 100mA
    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.

  • XC6372A292Dprinted 2A292USP-6B

    Printed 2A292. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.9V±2.5%, 100mA
    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.

  • XC9225A2A6Dprinted ZA2A6USP-6B

    Printed ZA2A6. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.05V±1%, 600mA, +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.

  • XC9225A2ACDprinted ZA2ACUSP-6B

    Printed ZA2AC. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 1.2MHz, 2.05V±1%, 600mA, +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.

  • XC9225A2B6Dprinted ZA2B6USP-6B

    Printed ZA2B6. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.15V±1%, 600mA, +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.

  • XC9225A2BCDprinted ZA2BCUSP-6B

    Printed ZA2BC. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 1.2MHz, 2.15V±1%, 600mA, +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.

  • XC9225A2C6Dprinted ZA2C6USP-6B

    Printed ZA2C6. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.25V±1%, 600mA, +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.

  • XC9225A2CCDprinted ZA2CCUSP-6B

    Printed ZA2CC. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 1.2MHz, 2.25V±1%, 600mA, +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.

  • XC9225A2D6Dprinted ZA2D6USP-6B

    Printed ZA2D6. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.35V±1%, 600mA, +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.

  • XC9225A2DCDprinted ZA2DCUSP-6B

    Printed ZA2DC. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 1.2MHz, 2.35V±1%, 600mA, +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.

  • XC9225A2E6Dprinted ZA2E6USP-6B

    Printed ZA2E6. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.45V±1%, 600mA, +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.

  • XC9225A2ECDprinted ZA2ECUSP-6B

    Printed ZA2EC. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 1.2MHz, 2.45V±1%, 600mA, +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.

  • XC9225A2F6Dprinted ZA2F6USP-6B

    Printed ZA2F6. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.55V±1%, 600mA, +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.

  • XC9225A2FCDprinted ZA2FCUSP-6B

    Printed ZA2FC. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 1.2MHz, 2.55V±1%, 600mA, +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.

  • XC9225A2H6Dprinted ZA2H6USP-6B

    Printed ZA2H6. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.65V±1%, 600mA, +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.

  • XC9225A2HCDprinted ZA2HCUSP-6B

    Printed ZA2HC. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 1.2MHz, 2.65V±1%, 600mA, +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.

  • XC9225A2K6Dprinted ZA2K6USP-6B

    Printed ZA2K6. 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
    USP-6B
    Pins
    6
    Details
    DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.75V±1%, 600mA, +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.

26 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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