SMD code G2-
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.
133 parts are printed G2-
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.
R3130N22EASOT-233 pins, Nisshinbo Micro DevicesNot recordedSOT-233 pinsNisshinbo Micro Devices
- What it is
- Not recorded
- Maker
- Nisshinbo Micro Devices
- Package
- SOT-23
- Pins
- 3
- Details
- CMOS-IC: Voltage Detector 2,2V, -Reset Push-pull output, 240ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
RP103Q151BSOT-343LDO regulator, 4 pins, RicohLDO regulatorSOT-3434 pinsRicoh
- What it is
- LDO regulator
- Maker
- Ricoh
- Package
- SOT-343
- Pins
- 4
- Details
- Linear voltage regulator IC: LDO, 1.5V±1%, 150mA,
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RP109L201DDFNLDO regulator, RicohLDO regulatorDFNNot recordedRicoh
- What it is
- LDO regulator
- Maker
- Ricoh
- Package
- DFN
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 2.0V±1%, 150mA, +CE, CL
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9166-12CVLSOT-23LDO regulator, 3 pins, RichtekLDO regulatorSOT-233 pinsRichtek
- What it is
- LDO regulator
- Maker
- Richtek
- Package
- SOT-23
- Pins
- 3
- Details
- VR-IC: LDO, 1.2V±2%, 300mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9166-12GVLSOT-233 pins, RichtekNot recordedSOT-233 pinsRichtek
- What it is
- Not recorded
- Maker
- Richtek
- Package
- SOT-23
- Pins
- 3
- Details
- Linear Voltage Regulator
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9166-12PVLSOT-23LDO regulator, 3 pins, RichtekLDO regulatorSOT-233 pinsRichtek
- What it is
- LDO regulator
- Maker
- Richtek
- Package
- SOT-23
- Pins
- 3
- Details
- VR-IC: LDO, 1.2V±2%, 300mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9715CGQWWSONLoad 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.
Si91844DT-28SOT-23-5LDO regulator, 5 pins, VishayLDO regulatorSOT-23-55 pinsVishay
- What it is
- LDO regulator
- Maker
- Vishay
- Package
- SOT-23-5
- Pins
- 5
- Details
- VR-IC: LDO, Low-Noise, CE, -Error, 2.8V±1,5%, 150mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
SS1020FLSOD-123FSchottky diode, 2 pins, PanjitSchottky diodeSOD-123F2 pinsPanjit
- What it is
- Schottky diode
- Maker
- Panjit
- Package
- SOD-123F
- Pins
- 2
- Details
- Diode: SBR, 20V, 1A, Vf<0.55V(1A)
- Source
- Published code list
Is it dead? The meter test is below: Schottky diode.
TC7SET08FSOT-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.
TC7SET08FUSOT-3535 pins, ToshibaNot recordedSOT-3535 pinsToshiba
- What it is
- Not recorded
- Maker
- Toshiba
- Package
- SOT-353
- Pins
- 5
- Details
- CMOS-Logic: 2-input AND gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
2 more parts have no package on record
SN74AXC1T45QDRYTexas InstrumentsNot recordedNot recordedNot recordedTexas Instruments
- What it is
- Not recorded
- Maker
- Texas Instruments
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: Dual-bit, dual-supply voltage level translator/transceiver with 3-state output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
TC1188-TECTMicrochipNot recordedNot recordedNot recordedMicrochip
- What it is
- Not recorded
- Maker
- Microchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear Voltage Regulator
- 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.
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.
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.
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.
Schottky diode
Diode range, part lifted or one leg off the pad. Red probe on the anode.
Working, it reads
About 0.15 to 0.45 V anode to cathode, roughly half a silicon diode, and open the other way.
Dead, it reads
- The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
- A reading the wrong way round as well: leaky.
- Open both ways: failed open.
- 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 large Schottky can read about 0.1 V forward and beep like a short, and leaks a little the wrong way when good, more when warm. It is shorted only if it reads the same both ways. Measure it cold, beside an identical cold one.
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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