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SMD code A9 in SMB

Marking codes are not standardised, and the same code is reused by unrelated makers for unrelated parts. Below is every part in our tables printed with it, and any printed with a code that is easy to misread as it, from the manufacturers' own marking tables and published code lists.

Not sure which one you have?

Answer up to 4 quick questions and these 50 parts are ranked, with a meter test that settles it. It works on a dead part too.

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

  • 74AUP1G98GFNXPNot recordedNXP
    What it is
    Not recorded
    Maker
    NXP
    Package
    Not recorded
    Pins
    Not recorded
    Details
    CMOS logic IC: Configurable multiple function gate
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • 74AUP1G98GMNXPNot recordedNXP
    What it is
    Not recorded
    Maker
    NXP
    Package
    Not recorded
    Pins
    Not recorded
    Details
    CMOS logic IC: Configurable multiple function gate
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • 74AUP1G98GNNXPNot recordedNXP
    What it is
    Not recorded
    Maker
    NXP
    Package
    Not recorded
    Pins
    Not recorded
    Details
    CMOS logic IC: Configurable multiple function gate
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • 74AUP1G98GSNXPNot recordedNXP
    What it is
    Not recorded
    Maker
    NXP
    Package
    Not recorded
    Pins
    Not recorded
    Details
    CMOS logic IC: Configurable multiple function gate
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • 74AUP1G98GXNXPNot recordedNXP
    What it is
    Not recorded
    Maker
    NXP
    Package
    Not recorded
    Pins
    Not recorded
    Details
    CMOS logic IC: Configurable multiple function gate
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • 74AUP2G98DPNXPNot recordedNXP
    What it is
    Not recorded
    Maker
    NXP
    Package
    Not recorded
    Pins
    Not recorded
    Details
    CMOS logic IC: Dual PCB configurable multiple function gate
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • 74AUP2G98GFNXPNot recordedNXP
    What it is
    Not recorded
    Maker
    NXP
    Package
    Not recorded
    Pins
    Not recorded
    Details
    CMOS logic IC: Dual PCB configurable multiple function gate
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • 74AUP2G98GUNXPNot recordedNXP
    What it is
    Not recorded
    Maker
    NXP
    Package
    Not recorded
    Pins
    Not recorded
    Details
    CMOS logic IC: Dual PCB configurable multiple function gate
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • AP8821C-09GIVoltage supervisor, Anwell SemiconductorVoltage supervisorAnwell Semiconductor
    What it is
    Voltage supervisor
    Maker
    Anwell Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 0.9V±2%, -Reset PPO, H-free
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • AP8821C-09GSVoltage supervisor, Anwell SemiconductorVoltage supervisorAnwell Semiconductor
    What it is
    Voltage supervisor
    Maker
    Anwell Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 0.9V±2%, -Reset PPO, H-free
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • AP8821C-09PIVoltage supervisor, Anwell SemiconductorVoltage supervisorAnwell Semiconductor
    What it is
    Voltage supervisor
    Maker
    Anwell Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 0.9V±2%, -Reset PPO
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • AP8821C-09PSVoltage supervisor, Anwell SemiconductorVoltage supervisorAnwell Semiconductor
    What it is
    Voltage supervisor
    Maker
    Anwell Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 0.9V±2%, -Reset PPO
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • BD45E291G-MVoltage supervisor, ROHMVoltage supervisorROHM
    What it is
    Voltage supervisor
    Maker
    ROHM
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 2.9V±1%, -MR, -Reset ODO, Rdt=100ms
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • ELM9709NBAVoltage supervisor, ELMVoltage supervisorELM
    What it is
    Voltage supervisor
    Maker
    ELM
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • FAN54015UCXFairchild SemiconductorNot recordedFairchild Semiconductor
    What it is
    Not recorded
    Maker
    Fairchild Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Charge controller
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

Is it dead? One meter test per kind

Parts of the same kind are tested the same way, so each test is here once. Each part above points to its own.

Integrated circuit

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?

Open this in the search to correct a character or try another package.