SMD code HG-
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.
79 parts are printed HG-
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.
SMAJ350CASMATVS diode, 2 pins, SOCAYTVS diodeSMA2 pinsSOCAY
- What it is
- TVS diode
- Maker
- SOCAY
- Package
- SMA
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
SMF6.0ASOD-123FTVS diode, 2 pins, Taitron ComponentsTVS diodeSOD-123F2 pinsTaitron Components
- What it is
- TVS diode
- Maker
- Taitron Components
- Package
- SOD-123F
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
SMF13ASOD-123FTVS diode, 2 pins, SOCAYTVS diodeSOD-123F2 pinsSOCAY
- What it is
- TVS diode
- Maker
- SOCAY
- Package
- SOD-123F
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
SMF13A-HFSOD-123FTVS diode, 2 pins, ComchipTVS diodeSOD-123F2 pinsComchip
- What it is
- TVS diode
- Maker
- Comchip
- Package
- SOD-123F
- Pins
- 2
- Details
- 13 V 200 W unidirectional TVS diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
SMV1232-079LFSOD-523Varicap diode, 2 pins, SkyworksVaricap diodeSOD-5232 pinsSkyworks
- What it is
- Varicap diode
- Maker
- Skyworks
- Package
- SOD-523
- Pins
- 2
- Details
- SMV123x Series: Hyperabrupt Junction Tuning Varactors
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PIN diode or varicap.
SN74AUP1G32DRYSONLogic gate, 6 pins, Texas InstrumentsLogic gateSON6 pinsTexas Instruments
- What it is
- Logic gate
- Maker
- Texas Instruments
- Package
- SON
- Pins
- 6
- Details
- Low-Power Single 2-Input Positive-OR Gate
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
SN74AUP1G32DSFSONLogic gate, 6 pins, Texas InstrumentsLogic gateSON6 pinsTexas Instruments
- What it is
- Logic gate
- Maker
- Texas Instruments
- Package
- SON
- Pins
- 6
- Details
- Low-Power Single 2-Input Positive-OR Gate
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
TV02W130-HFSOD-123FTVS diode, 2 pins, ComchipTVS diodeSOD-123F2 pinsComchip
- What it is
- TVS diode
- Maker
- Comchip
- Package
- SOD-123F
- Pins
- 2
- Details
- 13 V 200 W unidirectional TVS diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
TV04A351JB-HFSMATVS diode, 2 pins, ComchipTVS diodeSMA2 pinsComchip
- What it is
- TVS diode
- Maker
- Comchip
- Package
- SMA
- Pins
- 2
- Details
- 350 V 400 W bidirectional TVS diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
2SC3439-GSOT-893 pins, MitNot recordedSOT-893 pinsMit
- What it is
- Not recorded
- Maker
- Mit
- Package
- SOT-89
- Pins
- 3
- Details
- Si-npn: Motor-Drv, 30V, 1,5A, 500mW, B=400..800, 90MHz
- Source
- Published code list
Is it dead? The meter test is below: This part.
2SC6026MFV-GRSOT-723NPN transistor, 3 pins, ToshibaNPN transistorSOT-7233 pinsToshiba
- What it is
- NPN transistor
- Maker
- Toshiba
- Package
- SOT-723
- Pins
- 3
- Details
- Si-npn: GP, Amp, 60V, 150mA, 50mW, >60MHz, B=200..400
- Source
- Published code list
Is it dead? The meter test is below: NPN transistor.
3T130CSMB2 pins, MDE SemiconductorNot recordedSMB2 pinsMDE Semiconductor
- What it is
- Not recorded
- Maker
- MDE Semiconductor
- Package
- SMB
- Pins
- 2
- Details
- Thy-SPD: Vdrm=120V, Vs=160V, Ipp=100A, 70pF
- Source
- Published code list
Is it dead? The meter test is below: This part.
74HC1G32SOT-3535 pins, PhiNot recordedSOT-3535 pinsPhi
- What it is
- Not recorded
- Maker
- Phi
- Package
- SOT-353
- Pins
- 5
- Details
- CMOS-Logic: 2-input OR gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
2 more parts have no package on record
2SC28064 pins, ToshibaNot recordedNot recorded4 pinsToshiba
- What it is
- Not recorded
- Maker
- Toshiba
- Package
- Not recorded
- Pins
- 4
- Source
- Published code list
Is it dead? The meter test is below: This part.
74HC1G32GWNXPNot recordedNot recordedNot recordedNXP
- What it is
- Not recorded
- Maker
- NXP
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: 2-input OR gate
- Source
- Published code list
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.
TVS or ESD protection diode
Diode range, from the protected line to ground, part lifted if you can.
Working, it reads
A one-way part reads about 0.6 to 0.8 V forward and open in reverse. A two-way part reads open both ways. Arrays with several lines read as the datasheet's diagram draws them.
Dead, it reads
- From the line to ground, the same reading both ways, near 0 V with a continuous beep: shorted.
- A reading both ways on a one-way part: leaky.
- A one-way part open both ways: failed open.
- On the board
- , a line reading shorted to ground can be this part or anything else on that line. Lift it: if the short goes with it, it has failed.
- Compare:
- The same part on the next line or connector pin is the healthy reading to compare with.
- Watch for:
- A two-way part reads open both ways when it is good, exactly like one that has failed open. The meter cannot tell them apart; an identical part on the next line can.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
PIN diode or varicap
Diode range, part lifted or one leg off the pad. Red probe on the anode.
Working, it reads
About 0.6 to 0.9 V anode to cathode, 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.
- 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 varicap that has drifted in capacitance reads normal on a meter. Only a capacitance meter or the tuning itself shows it.
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.
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.
NPN transistor
Diode range, part lifted or its base leg off the pad.
Working, it reads
Red probe on the base reads about 0.6 to 0.75 V to the emitter and to the collector, and open the other way round. Collector to emitter reads open both ways.
Dead, it reads
- Collector to emitter the same both ways, near 0 V with a continuous beep: shorted. The commonest failure.
- The base the same both ways to another pin, near 0 V or a middling value: a shorted junction.
- Only one junction reads, or none: a junction has failed open. It then looks like a diode.
- A reading the wrong way round, where it should be open: 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 pair of diodes with a common pin reads just like a transistor, and some transistors carry a built-in diode or resistor. The datasheet says which.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Did you find your part?
Open this in the search to correct a character or try another package.