SMD code S02
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.
13 parts are printed S02
Not sure which one you have?
Answer up to 4 quick questions and these 13 parts are ranked, with a meter test that settles it. It works on a dead part too.
NC7S02P5SOT-23-5Logic gate, 5 pins, onsemiLogic gateSOT-23-55 pinsonsemi
- What it is
- Logic gate
- Maker
- onsemi
- Package
- SOT-23-5
- Pins
- 5
- Details
- TinyLogic HS 2-Input NOR Gate
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
NTS0102DPTSSOP-8Logic level translator, 8 pins, NXPLogic level translatorTSSOP-88 pinsNXP
- What it is
- Logic level translator
- Maker
- NXP
- Package
- TSSOP-8
- Pins
- 8
- Details
- 1 General description 2 Features and benefits 3 Applications 4 Ordering information
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
NTS0102DP-Q100TSSOP-8Logic level translator, 8 pins, NXPLogic level translatorTSSOP-88 pinsNXP
- What it is
- Logic level translator
- Maker
- NXP
- Package
- TSSOP-8
- Pins
- 8
- Details
- 1 General description 2 Features and benefits 3 Applications
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
FJX3002RSOT-323Digital transistor (NPN, resistors built in), 3 pins, Fairchild SemiconductorDigital transistor (NPN, resistors built in)SOT-3233 pinsFairchild Semiconductor
- What it is
- Digital transistor (NPN, resistors built in)
- Maker
- Fairchild Semiconductor
- Package
- SOT-323
- Pins
- 3
- Details
- NPN transistor: Sw, 50V, 100mA, 200mW, R1/R2=10k/10k
- Source
- Published code list
Is it dead? The meter test is below: Digital transistor.
NC7S02PSOT-3535 pins, Fairchild SemiconductorNot recordedSOT-3535 pinsFairchild Semiconductor
- What it is
- Not recorded
- Maker
- Fairchild Semiconductor
- Package
- SOT-353
- Pins
- 5
- Details
- CMOS logic IC: 2-input NOR gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
RP202N291B5SOT-23-5LDO regulator, 5 pins, RicohLDO regulatorSOT-23-55 pinsRicoh
- What it is
- LDO regulator
- Maker
- Ricoh
- Package
- SOT-23-5
- Pins
- 5
- Details
- Linear voltage regulator IC: LDO, 2.95V±1%, 200mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
SPN2302DS23RGSOT-23N-channel MOSFET, 3 pins, Sync PowerN-channel MOSFETSOT-233 pinsSync Power
- What it is
- N-channel MOSFET
- Maker
- Sync Power
- Package
- SOT-23
- Pins
- 3
- Details
- MOSFET n-type: Sw, 20V, 3.6A, 1.25W, 97 m(3.6A), 12/34ns
- Source
- Published code list
Is it dead? The meter test is below: N-channel MOSFET.
ST2302SOT-23N-channel MOSFET, 3 pins, Stanson TechnologyN-channel MOSFETSOT-233 pinsStanson Technology
- What it is
- N-channel MOSFET
- Maker
- Stanson Technology
- Package
- SOT-23
- Pins
- 3
- Details
- MOSFET n-type: Sw, 20V, 3.6A, 1.25W, 70 m(3.6A), 12/34ns
- Source
- Published code list
Is it dead? The meter test is below: N-channel MOSFET.
XC9148A20CER-GUSP-6CDC-DC converter, 6 pins, TorexDC-DC converterUSP-6C6 pinsTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6C
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM/PFM st-up, 1.2MHz, 2.0V±2%, 1.4A, CrL, CL, +CE
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9148A20CPR-GSOT-89-5DC-DC converter, 5 pins, TorexDC-DC converterSOT-89-55 pinsTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- SOT-89-5
- Pins
- 5
- Details
- DC/DC voltage converter IC: PWM/PFM step-up, 1.2MHz, 2.0V±2%, 1.4A, CrL, CL, +CE
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
3 more parts have no package on record
NTS0102GDLogic level translator, 8 pins, NXPLogic level translatorNot recorded8 pinsNXP
- What it is
- Logic level translator
- Maker
- NXP
- Package
- Not recorded
- Pins
- 8
- Details
- 1 General description 2 Features and benefits 3 Applications 4 Ordering information
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
NTS0102GD-Q100Logic level translator, 8 pins, NXPLogic level translatorNot recorded8 pinsNXP
- What it is
- Logic level translator
- Maker
- NXP
- Package
- Not recorded
- Pins
- 8
- Details
- 1 General description 2 Features and benefits 3 Applications
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
NTS0102GTLogic level translator, 8 pins, NXPLogic level translatorNot recorded8 pinsNXP
- What it is
- Logic level translator
- Maker
- NXP
- Package
- Not recorded
- Pins
- 8
- Details
- 1 General description 2 Features and benefits 3 Applications 4 Ordering information
- Source
- Manufacturer datasheet
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.
Digital transistor
Ohms range, part lifted. The datasheet gives the built-in resistors: R1 in series with the base, R2 from base to emitter.
Working, it reads
Base to emitter reads about R1 plus R2 either way round, about 20 kΩ on a 10 k and 10 k part, give or take their wide tolerance. Collector to emitter reads open. A part with no R2 reads a junction behind R1 one way instead.
Dead, it reads
- Collector to emitter the same both ways, near 0 Ω with a continuous beep: shorted.
- From the base, open or far above R1 plus R2: R1 has failed. Static damage shows here most often.
- Base to emitter near 0 Ω: failed short.
- 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:
- The readings depend on the resistor values, so an identical part elsewhere on the board is the surest reference. Measure it the same way.
- Watch for:
- On the diode range a good part with 10 kΩ resistors reads open on every pair, so a good part looks dead there. Use the ohms range.
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.
N-channel MOSFET
Diode range, part lifted. Test drain to source first, then short gate to source and test again.
Working, it reads
Red probe on the source, black on the drain: about 0.4 to 0.9 V, the body diode. Open the other way. The gate reads open to both other pins, both ways.
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. Often all three pins end up shorted together.
- No body diode at all: failed open.
- On the board
- the gate usually has a resistor to the source, so gate to source reads that resistor, which is not a fault. A drain short can be the load. 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.
Printed with a code easy to misread as S02
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 S02
For a marking with its end worn or burnt off. Each code has a page of its own.
Codes not listed here are printed on 92 more parts.
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