SMD code FA-
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.
89 parts are printed FA-
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.
RP130Q121BSOT-343LDO regulator, 4 pins, RicohLDO regulatorSOT-3434 pinsRicoh
- What it is
- LDO regulator
- Maker
- Ricoh
- Package
- SOT-343
- Pins
- 4
- Details
- Linear Voltage Regulator
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RP152N025BSOT-23-6LDO regulator, 6 pins, RicohLDO regulatorSOT-23-66 pinsRicoh
- What it is
- LDO regulator
- Maker
- Ricoh
- Package
- SOT-23-6
- Pins
- 6
- Details
- Linear voltage regulator IC: LDO, Dual out, Vout1/Vout2=3.0V/3.0V±1%, 150mA, +CE, CL
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9011-MMGQWWSONRichtekNot recordedWSONNot recordedRichtek
- What it is
- Not recorded
- Maker
- Richtek
- Package
- WSON
- Pins
- Not recorded
- Details
- Linear Voltage Regulator
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9715GGQWWSONLoad switch, RichtekLoad switchWSONNot recordedRichtek
- What it is
- Load switch
- Maker
- Richtek
- Package
- WSON
- Pins
- Not recorded
- Details
- Power Switch
- Source
- Published code list
Is it dead? The meter test is below: Load switch.
RT9808-44CVSOT-23Voltage supervisor, 3 pins, RichtekVoltage supervisorSOT-233 pinsRichtek
- What it is
- Voltage supervisor
- Maker
- Richtek
- Package
- SOT-23
- Pins
- 3
- Details
- Voltage detector IC: 4.4V±2%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
SiP810CMEUADTSOT-23Voltage supervisor, 3 pins, VishayVoltage supervisorSOT-233 pinsVishay
- What it is
- Voltage supervisor
- Maker
- Vishay
- Package
- SOT-23
- Pins
- 3
- Details
- CMOS-IC: Voltage Detector 4,38V, Reset Push-pull output 1,5ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
TC1277-5ENBSOT-23Voltage supervisor, 3 pins, MicrochipVoltage supervisorSOT-233 pinsMicrochip
- What it is
- Voltage supervisor
- Maker
- Microchip
- Package
- SOT-23
- Pins
- 3
- Details
- Voltage detector IC: 3.06V±2%, +Reset PPO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
TC1277-20ENBSOT-23Voltage supervisor, 3 pins, MicrochipVoltage supervisorSOT-233 pinsMicrochip
- What it is
- Voltage supervisor
- Maker
- Microchip
- Package
- SOT-23
- Pins
- 3
- Details
- Voltage detector IC: 2.55V±2%, +Reset PPO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
UM1560DB-30DFNLDO regulator, Union SemiconductorLDO regulatorDFNNot recordedUnion Semiconductor
- What it is
- LDO regulator
- Maker
- Union Semiconductor
- Package
- DFN
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 3.0V±2%, 200mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
uPA505TSOT-23-5Complementary MOSFET pair (N-channel and P-channel), 5 pins, NEC ElectronicsComplementary MOSFET pair (N-channel and P-channel)SOT-23-55 pinsNEC Electronics
- What it is
- Complementary MOSFET pair (N-channel and P-channel)
- Maker
- NEC Electronics
- Package
- SOT-23-5
- Pins
- 5
- Details
- MOSFET n/p-type: Dual, 50V, 100mA, 300mW, <19 (10mA), 17/68ns
- Source
- Published code list
Is it dead? The meter test is below: MOSFET pair.
XC62GP5022PSOT-89-55 pins, TorexNot recordedSOT-89-55 pinsTorex
- What it is
- Not recorded
- Maker
- Torex
- Package
- SOT-89-5
- Pins
- 5
- Details
- Linear voltage regulator IC: 5.0V±2%, 150mA, -CE, Hi-sp. response
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
XC62GR5022PSOT-89-55 pins, TorexNot recordedSOT-89-55 pinsTorex
- What it is
- Not recorded
- Maker
- Torex
- Package
- SOT-89-5
- Pins
- 5
- Details
- Linear voltage regulator IC: 5.0V±2%, 150mA, +CE, Hi-sp. response
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
3 more parts have no package on record
RP300K26DB3Voltage supervisor, RicohVoltage supervisorNot recordedNot recordedRicoh
- What it is
- Voltage supervisor
- Maker
- Ricoh
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 2.63V±1%, -Reset ODO, -MR, Rdt=200ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
RP602Z390CDC-DC converter, RicohDC-DC converterNot recordedNot recordedRicoh
- What it is
- DC-DC converter
- Maker
- Ricoh
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PWM/VFM B-boost, 3.9V±1.5%, 1.5A, 2.6MHz, +CE, CL, Reset-pr.
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
uP8806JDS4-28LDO regulator, uPI GroupLDO regulatorNot recordedNot recordeduPI Group
- What it is
- LDO regulator
- Maker
- uPI Group
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 2.8V±1,5%, 300mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
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.
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.
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.
Load switch
Voltage, board powered, black probe on ground.
Working, it reads
Switched on, the output pin sits at the input voltage. Switched off, it sits near 0 V.
Dead, it reads
- Output at the input voltage while switched off: the pass element has shorted.
- Input present and switched on, no output: failed open, or shut down into a shorted load. Power off and measure output to ground.
- On the board:
- An output near 0 Ω to ground is usually the load. Lift the output pin to see which.
- 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 pinout and whether the enable is active high or low differ between parts. 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.
MOSFET pair
Diode range, part lifted. Test drain to source first, then short gate to source and test again. Test each MOSFET on its own pins, as the datasheet's pinout gives them.
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.
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