SMD code C2-
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.
219 parts are printed C2-
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.
SMBYT03-200SMA2 pins, STMicroelectronicsNot recordedSMA2 pinsSTMicroelectronics
- What it is
- Not recorded
- Maker
- STMicroelectronics
- Package
- SMA
- Pins
- 2
- Details
- Si-diode: Rectifier, Fast Recovery, 200V, 3A, Vf<0,71V(3A), <25ns
- Source
- Published code list
Is it dead? The meter test is below: Silicon diode.
SST112SOT-233 pins, VishayNot recordedSOT-233 pinsVishay
- What it is
- Not recorded
- Maker
- Vishay
- Package
- SOT-23
- Pins
- 3
- Details
- n-FET: Sw, 35V, 350mW, Idss=5mA, Rds(on)=50Ω, 2/6ns
- Source
- Published code list
Is it dead? The meter test is below: MOSFET.
SZNZ8F20VSMX2WT5GSOD-882Zener diode, 2 pins, onsemiZener diodeSOD-8822 pinsonsemi
- What it is
- Zener diode
- Maker
- onsemi
- Package
- SOD-882
- Pins
- 2
- Details
- Zener diode: 19.54..20.46V, Izt=5mA, Zzt=55, 250mW, Pb-Free
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
TC4S81FSOT-23-55 pins, ToshibaNot recordedSOT-23-55 pinsToshiba
- What it is
- Not recorded
- Maker
- Toshiba
- Package
- SOT-23-5
- Pins
- 5
- Details
- CMOS-Logic: 2-input AND gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
TC54VC2202ECBSOT-23Voltage supervisor, 3 pins, MicrochipVoltage supervisorSOT-233 pinsMicrochip
- What it is
- Voltage supervisor
- Maker
- Microchip
- Package
- SOT-23
- Pins
- 3
- Details
- CMOS-IC: Voltage Detector 2.2V±2%, -Reset Push-pull output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
TC54VC2202MBSOT-89Voltage supervisor, 3 pins, MicrochipVoltage supervisorSOT-893 pinsMicrochip
- What it is
- Voltage supervisor
- Maker
- Microchip
- Package
- SOT-89
- Pins
- 3
- Details
- CMOS-IC: Voltage Detector 2.2V±2%, -Reset Push-pull output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
TC1054-2.7VCT713SOT-23-5LDO regulator, 5 pins, MicrochipLDO regulatorSOT-23-55 pinsMicrochip
- What it is
- LDO regulator
- Maker
- Microchip
- Package
- SOT-23-5
- Pins
- 5
- Details
- VR-IC: LDO, CE, -Error, 2.7V±2%, 50mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
UDZS5.6BSOD-323Zener diode, 2 pins, ROHMZener diodeSOD-3232 pinsROHM
- What it is
- Zener diode
- Maker
- ROHM
- Package
- SOD-323
- Pins
- 2
- Details
- Z-diode: 5,6V±2,5%, 5mA, 200mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
7 more parts have no package on record
SN74LVC1G10DRYTexas InstrumentsNot recordedNot recordedNot recordedTexas Instruments
- What it is
- Not recorded
- Maker
- Texas Instruments
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: 3-input NAND gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
SN74LVC1G10DSFTexas InstrumentsNot recordedNot recordedNot recordedTexas Instruments
- What it is
- Not recorded
- Maker
- Texas Instruments
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: 3-input NAND gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
SN74LVC2G241YZPTexas InstrumentsNot recordedNot recordedNot recordedTexas Instruments
- What it is
- Not recorded
- Maker
- Texas Instruments
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: Dual non-inverted bus buffer with 3-state output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
TDZ5.6BZener diode, ROHMZener diodeNot recordedNot recordedROHM
- What it is
- Zener diode
- Maker
- ROHM
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Z-diode: 5,6V±2,5%, 10mA, 500mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
TDZV5.6Zener diode, ROHMZener diodeNot recordedNot recordedROHM
- What it is
- Zener diode
- Maker
- ROHM
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Zener diode: 5.1..6.1V, Izt=10mA, 500mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
TK65932MToko AmericaNot recordedNot recordedNot recordedToko America
- What it is
- Not recorded
- Maker
- Toko America
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear IC: Fluorescent lamp driver, 97mA, 225Hz
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
VDZFH5.6BZener diode, ROHMZener diodeNot recordedNot recordedROHM
- What it is
- Zener diode
- Maker
- ROHM
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Zener diode: 5.6V±5%, Izt=5mA, 100mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
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.
Silicon diode
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.
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.
MOSFET
Diode range, part lifted. Test drain to source first, then short gate to source and test again.
Working, it reads
One way between drain and source reads about 0.4 to 0.9 V, the body diode, and the other way open. The gate reads open to both other pins.
Dead, it reads
- Drain to source the same both ways, near 0 V with a continuous beep, and still so after shorting gate to source: shorted. The classic failure.
- The gate reads low to source or drain: gate shorted.
- No body diode at all: failed open.
- On the board
- the gate usually has a resistor to the source, which reads as that resistor and is not a fault. Lift a leg to be sure.
- 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 diode range can charge the gate enough to turn the part on, and then drain to source reads near 0 both ways on a good part. Short gate to source and test again before you condemn it.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Zener diode
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.
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.
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