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SMD code search: identify a part by its marking

2 parts are printed Z10C. 2 printed with a similar-looking code.

2 parts are printed Z10C

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.

Zener diode, all SOD-80, 2 pins. What differs:

  • TLZJ10CSOD-80Taitron ComponentsTaitron Components
    What it is
    Zener diode
    Maker
    Taitron Components
    Package
    SOD-80
    Pins
    2
    Details
    SMD Zener Diodes (Leadless ) - 500mW
    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.

  • GLZJ10CSOD-80PanjitPanjit
    What it is
    Zener diode
    Maker
    Panjit
    Package
    SOD-80
    Pins
    2
    Details
    Zener diode: 9.70..10.20V, Zzt=30 , Izt=5mA, 500mW
    Source
    Published code list

    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.

2 more parts are printed with a code easy to misread as Z10C

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.

TVS diode, 2 pins. What differs:

  • P4SMAFJ210Cprinted 210CSMAFDongguan You Feng Wei ElectronicsSMAFDongguan You Feng Wei Electronics

    Printed 210C on the part. Easy to misread as Z10C. Check that character with a loupe before you order anything.

    What it is
    TVS diode
    Maker
    Dongguan You Feng Wei Electronics
    Package
    SMAF
    Pins
    2
    Details
    Transient voltage supressor: Vrwm=210V, Vbr=231..296.1V, Ipp=1.1A, 400W(1ms), Bidir.
    Source
    Published code list

    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.

  • TPSMB210CAprinted 210CSMBLittelfuseSMBLittelfuse

    Printed 210C on the part. Easy to misread as Z10C. Check that character with a loupe before you order anything.

    What it is
    TVS diode
    Maker
    Littelfuse
    Package
    SMB
    Pins
    2
    Details
    Transient voltage supressor: Vrwm=179.60V, Vbr=199.50..220.50V, Ipp=2.1A, 600W(1ms), Bidir.
    Source
    Published code list

    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.

24 more parts have codes that begin with Z10C

Codes that begin with Z10C

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

Voltage supervisor. What differs:

  • BL8509-210CCRMprinted 210CCSOT-233 pins, Shanghai BellingSOT-233 pinsShanghai Belling

    Printed 210CC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai Belling
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=150ms
    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.

  • BL8509-210CCRNprinted 210CCSOT-23-55 pins, Shanghai BellingSOT-23-55 pinsShanghai Belling

    Printed 210CC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai Belling
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=150ms
    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.

  • BL8509-210CNRMprinted 210CNSOT-233 pins, Shanghai BellingSOT-233 pinsShanghai Belling

    Printed 210CN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai Belling
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=150ms
    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.

  • BL8509-210CNRNprinted 210CNSOT-23-55 pins, Shanghai BellingSOT-23-55 pinsShanghai Belling

    Printed 210CN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai Belling
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=150ms
    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.

  • BL8509-210GCRMprinted 210GCSOT-233 pins, Shanghai BellingSOT-233 pinsShanghai Belling

    Printed 210GC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai Belling
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=400ms
    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.

  • BL8509-210GCRNprinted 210GCSOT-23-55 pins, Shanghai BellingSOT-23-55 pinsShanghai Belling

    Printed 210GC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai Belling
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=400ms
    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.

  • BL8509-210GNRMprinted 210GNSOT-233 pins, Shanghai BellingSOT-233 pinsShanghai Belling

    Printed 210GN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai Belling
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=400ms
    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.

  • BL8509-210GNRNprinted 210GNSOT-23-55 pins, Shanghai BellingSOT-23-55 pinsShanghai Belling

    Printed 210GN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai Belling
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=400ms
    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.

  • GM8509B-210CCRMprinted 210CCSOT-233 pins, Hangzhou Jiemao MicroelectronicsSOT-233 pinsHangzhou Jiemao Microelectronics

    Printed 210CC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Hangzhou Jiemao Microelectronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=150ms
    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.

  • GM8509B-210CCRNprinted 210CCSOT-23-55 pins, Hangzhou Jiemao MicroelectronicsSOT-23-55 pinsHangzhou Jiemao Microelectronics

    Printed 210CC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Hangzhou Jiemao Microelectronics
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=150ms, Td-Disable
    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.

  • GM8509B-210CNRMprinted 210CNSOT-233 pins, Hangzhou Jiemao MicroelectronicsSOT-233 pinsHangzhou Jiemao Microelectronics

    Printed 210CN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Hangzhou Jiemao Microelectronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=150ms
    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.

  • GM8509B-210CNRNprinted 210CNSOT-23-55 pins, Hangzhou Jiemao MicroelectronicsSOT-23-55 pinsHangzhou Jiemao Microelectronics

    Printed 210CN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Hangzhou Jiemao Microelectronics
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=150ms, Td-Disable
    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.

  • GM8509B-210GCRMprinted 210GCSOT-233 pins, Hangzhou Jiemao MicroelectronicsSOT-233 pinsHangzhou Jiemao Microelectronics

    Printed 210GC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Hangzhou Jiemao Microelectronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=400ms
    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.

  • GM8509B-210GCRNprinted 210GCSOT-23-55 pins, Hangzhou Jiemao MicroelectronicsSOT-23-55 pinsHangzhou Jiemao Microelectronics

    Printed 210GC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Hangzhou Jiemao Microelectronics
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=400ms, Td-Disable
    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.

  • GM8509B-210GNRMprinted 210GNSOT-233 pins, Hangzhou Jiemao MicroelectronicsSOT-233 pinsHangzhou Jiemao Microelectronics

    Printed 210GN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Hangzhou Jiemao Microelectronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=400ms
    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.

  • GM8509B-210GNRNprinted 210GNSOT-23-55 pins, Hangzhou Jiemao MicroelectronicsSOT-23-55 pinsHangzhou Jiemao Microelectronics

    Printed 210GN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Hangzhou Jiemao Microelectronics
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=400ms, Td-Disable
    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.

  • LC9009CB3TR210CCprinted 210CCSOT-233 pins, Shanghai LeadChip MicroelectronicsSOT-233 pinsShanghai LeadChip Microelectronics

    Printed 210CC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai LeadChip Microelectronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rtd=150ms
    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.

  • LC9009CB3TR210CNprinted 210CNSOT-233 pins, Shanghai LeadChip MicroelectronicsSOT-233 pinsShanghai LeadChip Microelectronics

    Printed 210CN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai LeadChip Microelectronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rtd=150ms
    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.

  • LC9009CB3TR210GCprinted 210GCSOT-233 pins, Shanghai LeadChip MicroelectronicsSOT-233 pinsShanghai LeadChip Microelectronics

    Printed 210GC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai LeadChip Microelectronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=400ms
    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.

  • LC9009CB3TR210GNprinted 210GNSOT-233 pins, Shanghai LeadChip MicroelectronicsSOT-233 pinsShanghai LeadChip Microelectronics

    Printed 210GN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai LeadChip Microelectronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=400ms
    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.

  • LC9009CB5TR210CCprinted 210CCSOT-23-55 pins, Shanghai LeadChip MicroelectronicsSOT-23-55 pinsShanghai LeadChip Microelectronics

    Printed 210CC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai LeadChip Microelectronics
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=150ms
    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.

  • LC9009CB5TR210CNprinted 210CNSOT-23-55 pins, Shanghai LeadChip MicroelectronicsSOT-23-55 pinsShanghai LeadChip Microelectronics

    Printed 210CN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai LeadChip Microelectronics
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=150ms
    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.

  • LC9009CB5TR210GCprinted 210GCSOT-23-55 pins, Shanghai LeadChip MicroelectronicsSOT-23-55 pinsShanghai LeadChip Microelectronics

    Printed 210GC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai LeadChip Microelectronics
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset PPO, Rdt=400ms
    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.

  • LC9009CB5TR210GNprinted 210GNSOT-23-55 pins, Shanghai LeadChip MicroelectronicsSOT-23-55 pinsShanghai LeadChip Microelectronics

    Printed 210GN. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.

    What it is
    Voltage supervisor
    Maker
    Shanghai LeadChip Microelectronics
    Package
    SOT-23-5
    Pins
    5
    Details
    Voltage detector IC: 2.1V±2%, -Reset ODO, Rdt=400ms
    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.

Did you find your part?

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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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