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WhatSMDSign in

SMD code C2V

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.

15 parts are printed C2V

Not sure which one you have?

Answer up to 4 quick questions and these 15 parts are ranked, with a meter test that settles it. It works on a dead part too.

  • CMPTA64SOT-23Darlington transistor, 3 pins, Central SemiconductorDarlington transistorSOT-233 pinsCentral Semiconductor
    What it is
    Darlington transistor
    Maker
    Central Semiconductor
    Package
    SOT-23
    Pins
    3
    Details
    Si-pnp-Darl: GP, 30V, 500mA, 350mW, B>20000, >125MHz
    Source
    Published code list

    Is it dead? The meter test is below: Darlington transistor.

  • S-812C41AMC-C2VT2SOT-23-55 pins, ABLICNot recordedSOT-23-55 pinsABLIC
    What it is
    Not recorded
    Maker
    ABLIC
    Package
    SOT-23-5
    Pins
    5
    Details
    equivalent S-812C41AY
    Source
    Published code list

    Is it dead? The meter test is below: This part.

  • S-812C41AMC-C2VT2GSOT-23-55 pins, Seiko InstrumentsNot recordedSOT-23-55 pinsSeiko Instruments
    What it is
    Not recorded
    Maker
    Seiko Instruments
    Package
    SOT-23-5
    Pins
    5
    Details
    Linear voltage regulator IC: 4.1V±2%, 50mA
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • S-812C41AUA-C2VT2SOT-893 pins, ABLICNot recordedSOT-893 pinsABLIC
    What it is
    Not recorded
    Maker
    ABLIC
    Package
    SOT-89
    Pins
    3
    Details
    equivalent S-812C41AY
    Source
    Published code list

    Is it dead? The meter test is below: This part.

  • S-812C41AUA-C2VT2GSOT-893 pins, Seiko InstrumentsNot recordedSOT-893 pinsSeiko Instruments
    What it is
    Not recorded
    Maker
    Seiko Instruments
    Package
    SOT-89
    Pins
    3
    Details
    Linear voltage regulator IC: 4.1V±2%, 50mA
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • XC66DC2226MSOT-23-55 pins, TorexNot recordedSOT-23-55 pinsTorex
    What it is
    Not recorded
    Maker
    Torex
    Package
    SOT-23-5
    Pins
    5
    Details
    Linear voltage regulator with volatge detector: LDO, 2.6V±2%, 100mA, Vdet=2.2V±2%, +Reset PPO
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • XC66DC2246MSOT-23-55 pins, TorexNot recordedSOT-23-55 pinsTorex
    What it is
    Not recorded
    Maker
    Torex
    Package
    SOT-23-5
    Pins
    5
    Details
    Linear voltage regulator with volatge detector: LDO, 4.6V±2%, 100mA, Vdet=2.2V±2%, +Reset PPO
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • XC66DN2226MSOT-23-55 pins, TorexNot recordedSOT-23-55 pinsTorex
    What it is
    Not recorded
    Maker
    Torex
    Package
    SOT-23-5
    Pins
    5
    Details
    Linear voltage regulator with volatge detector: LDO, 2.6V±2%, 100mA, Vdet=2.2V±2%, +Reset ODO
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • XC66DN2246MSOT-23-55 pins, TorexNot recordedSOT-23-55 pinsTorex
    What it is
    Not recorded
    Maker
    Torex
    Package
    SOT-23-5
    Pins
    5
    Details
    Linear voltage regulator with volatge detector: LDO, 4.6V±2%, 100mA, Vdet=2.2V±2%, +Reset ODO
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • XC9265B21BMR-GSOT-23-5DC-DC converter, 5 pins, TorexDC-DC converterSOT-23-55 pinsTorex
    What it is
    DC-DC converter
    Maker
    Torex
    Package
    SOT-23-5
    Pins
    5
    Details
    DC/DC voltage converter IC: PFM st-dwn, 2.15V±2%, 50mA, +CE
    Source
    Published code list

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

  • µPC8152TASOT-23-66 pins, RenesasNot recordedSOT-23-66 pinsRenesas
    What it is
    Not recorded
    Maker
    Renesas
    Package
    SOT-23-6
    Pins
    6
    Source
    Published code list

    Is it dead? The meter test is below: This part.

  • µPC8152TBSOT-3636 pins, RenesasNot recordedSOT-3636 pinsRenesas
    What it is
    Not recorded
    Maker
    Renesas
    Package
    SOT-363
    Pins
    6
    Source
    Published code list

    Is it dead? The meter test is below: This part.

  • 3 more parts have no package on record
    • uPC8152TRF amplifier (MMIC), NEC ElectronicsRF amplifier (MMIC)Not recordedNot recordedNEC Electronics
      What it is
      RF amplifier (MMIC)
      Maker
      NEC Electronics
      Package
      Not recorded
      Pins
      Not recorded
      Details
      Monolithic microwave IC: Cell/cordl-ph. buff-amp, Ucc=2.4..3.6V, 800..1900MHz
      Source
      Published code list

      Is it dead? The meter test is below: RF amplifier.

    • XC9265B21B4R-GDC-DC converter, TorexDC-DC converterNot recordedNot recordedTorex
      What it is
      DC-DC converter
      Maker
      Torex
      Package
      Not recorded
      Pins
      Not recorded
      Details
      DC/DC voltage converter IC: PFM st-dwn, 2.15V±2%, 50mA, +CE
      Source
      Published code list

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

    • µPC8152TA(TB)RenesasNot recordedNot recordedNot recordedRenesas
      What it is
      Not recorded
      Maker
      Renesas
      Package
      Not recorded
      Pins
      Not recorded
      Details
      Lin-IC: Cell/Cordl-Phone Buff-Amp, Ucc=2,4..3,6V, 800..1900MHz
      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.

Darlington transistor

Diode range, part lifted or its base leg off the pad.

Working, it reads

From the base, one probe colour reads about 0.6 to 0.75 V to the collector and about 1.1 to 1.4 V to the emitter, two junctions in series, and open the other way round. Collector to emitter reads open. Built-in resistors can change these readings.

Dead, it reads

  • Collector to emitter the same both ways, near 0 V with a continuous beep: shorted. The commonest failure.
  • The base the same both ways to another pin, near 0 V or a middling value: a shorted junction.
  • Only one junction reads, or none: a junction has failed open. It then looks like a diode.
  • A reading the wrong way round, where it should be open: 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 pair of diodes with a common pin reads just like a transistor, and some transistors carry a built-in diode or resistor. The datasheet says which.

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

This part

Diode range and ohms range, part lifted.

Working, it reads

Depends on what it is. The datasheet, or an identical part, says.

Dead, it reads

  • Between two pins, the same reading both ways, near 0 V with a continuous beep: shorted.
  • Open between every pair of pins: failed open, or a part that reads open when working.
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.

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

Voltage regulator

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.

RF amplifier

Voltage, board powered, on the output pin that the bias resistor or choke feeds.

Working, it reads

The output pin sits at the device voltage the datasheet gives, a few volts, below the supply.

Dead, it reads

  • Output pin at 0 V, or near 0 Ω to ground with the power off: shorted inside.
  • Output pin at the full supply voltage: open inside, no current flowing.
On the board:
Measured on the board with power on; the bias network is part of the reading.
Compare:
If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
Watch for:
The figures depend on the part and its bias resistor. The datasheet gives both.

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

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.

Printed with a code easy to misread as C2V

One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.

Codes that begin with C2V

For a marking with its end worn or burnt off. Each code has a page of its own.

Did you find your part?

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