SMD code DC-
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.
147 parts are printed DC-
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.
FS1JWTGSOD-123WRectifier, 2 pins, Fagor ElectronicaRectifierSOD-123W2 pinsFagor Electronica
- What it is
- Rectifier
- Maker
- Fagor Electronica
- Package
- SOD-123W
- Pins
- 2
- Details
- Diode: Rectifier, 600V, 1A, Vf<1.1V(1A), 1.8us
- Source
- Published code list
Is it dead? The meter test is below: Silicon diode.
LMSZ4695T1GSOD-123Zener diode, 2 pins, LRCZener diodeSOD-1232 pinsLRC
- What it is
- Zener diode
- Maker
- LRC
- Package
- SOD-123
- Pins
- 2
- Details
- Zener diode: 8.27..9.14V, Izt=0.05mA, 500mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
MAX6314US36D2-TSOT-1434 pins, Analog DevicesNot recordedSOT-1434 pinsAnalog Devices
- What it is
- Not recorded
- Maker
- Analog Devices
- Package
- SOT-143
- Pins
- 4
- Details
- CMOS-IC: Voltage Detector 3.6V, -MR, -Reset Bidir. PPO, 1ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
MEZ03-3.3-T2SOT-23Zener diode, 3 pins, Matsuki Electronic CompanyZener diodeSOT-233 pinsMatsuki Electronic Company
- What it is
- Zener diode
- Maker
- Matsuki Electronic Company
- Package
- SOT-23
- Pins
- 3
- Details
- Zener diode: 3.14..3.47V, Izt=5mA, Zzt=95, 300mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
MMBT2132T3SOT-23-66 pins, onsemiNot recordedSOT-23-66 pinsonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- SOT-23-6
- Pins
- 6
- Source
- Published code list
Is it dead? The meter test is below: This part.
MMSZ4695-FSOD-123FZener diode, 2 pins, Taitron ComponentsZener diodeSOD-123F2 pinsTaitron Components
- What it is
- Zener diode
- Maker
- Taitron Components
- Package
- SOD-123F
- Pins
- 2
- Details
- Zener diode: 8.27..9.14V, Izt=0.05mA, 500mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
MMSZ4710SOD-123Zener diode, 2 pins, EIC SemiconductorZener diodeSOD-1232 pinsEIC Semiconductor
- What it is
- Zener diode
- Maker
- EIC Semiconductor
- Package
- SOD-123
- Pins
- 2
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
NCP367DPMUECTBGDFNBattery charger, onsemiBattery chargerDFNNot recordedonsemi
- What it is
- Battery charger
- Maker
- onsemi
- Package
- DFN
- Pins
- Not recorded
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
PBSS2540MSOT-8833 pins, NexperiaNot recordedSOT-8833 pinsNexperia
- What it is
- Not recorded
- Maker
- Nexperia
- Package
- SOT-883
- Pins
- 3
- Source
- Published code list
Is it dead? The meter test is below: This part.
R3112Q321ASOT-1434 pins, Nisshinbo Micro DevicesNot recordedSOT-1434 pinsNisshinbo Micro Devices
- What it is
- Not recorded
- Maker
- Nisshinbo Micro Devices
- Package
- SOT-143
- Pins
- 4
- Details
- CMOS-IC: Voltage Detector 3.2V, Reset Push-pull output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
R3114K091ADFNVoltage supervisor, RicohVoltage supervisorDFNNot recordedRicoh
- What it is
- Voltage supervisor
- Maker
- Ricoh
- Package
- DFN
- Pins
- Not recorded
- Details
- Voltage detector IC: 0.9V±0.8%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
R3134K35EADFNVoltage supervisor, RicohVoltage supervisorDFNNot recordedRicoh
- What it is
- Voltage supervisor
- Maker
- Ricoh
- Package
- DFN
- Pins
- Not recorded
- Details
- Voltage detector IC: 3.5V±1.8%, -Reset ODO, -MR
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
3 more parts have no package on record
IXD5127C19JNRVoltage supervisor, IXYSVoltage supervisorNot recordedNot recordedIXYS
- What it is
- Voltage supervisor
- Maker
- IXYS
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 1.9V±0.8%,+Reset PPO, -MR, 400ms Rt delay
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
IXD5127N20DNRVoltage supervisor, IXYSVoltage supervisorNot recordedNot recordedIXYS
- What it is
- Voltage supervisor
- Maker
- IXYS
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 2.0V±0.8%, -Reset ODO, -MR, 400ms Rt delay
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
MMBZ4695-VZener diode, VishayZener diodeNot recordedNot recordedVishay
- What it is
- Zener diode
- Maker
- Vishay
- Package
- Not recorded
- Pins
- Not recorded
- 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.
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.
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.
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