SMD code 34 in SOT-883
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.
6 parts in SOT-883 are printed 34
Not sure which one you have?
Answer up to 4 quick questions and these 33 parts are ranked, with a meter test that settles it. It works on a dead part too.
CMS3134KQA-HFSOT-883N-channel MOSFET, 3 pins, ComchipN-channel MOSFET3 pinsComchip
- What it is
- N-channel MOSFET
- Maker
- Comchip
- Package
- SOT-883
- Pins
- 3
- Details
- 20 V, 0.75 A N-channel MOSFET
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: N-channel MOSFET.
DMN26D0UFB4-7SOT-883N-channel MOSFET, 3 pins, HXYN-channel MOSFET3 pinsHXY
- What it is
- N-channel MOSFET
- Maker
- HXY
- Package
- SOT-883
- Pins
- 3
- Details
- N-channel MOSFET, 20 V, 0.7 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: N-channel MOSFET.
DMN26D0UFB4-7BSOT-883N-channel MOSFET, 3 pins, HXYN-channel MOSFET3 pinsHXY
- What it is
- N-channel MOSFET
- Maker
- HXY
- Package
- SOT-883
- Pins
- 3
- Details
- N-channel MOSFET, 20 V, 0.7 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: N-channel MOSFET.
GSFW0200SOT-883N-channel MOSFET, 3 pins, Good-ArkN-channel MOSFET3 pinsGood-Ark
- What it is
- N-channel MOSFET
- Maker
- Good-Ark
- Package
- SOT-883
- Pins
- 3
- Details
- N-channel MOSFET, 20 V
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: N-channel MOSFET.
HXY3134AF3SOT-883N-channel MOSFET, 3 pins, HXYN-channel MOSFET3 pinsHXY
- What it is
- N-channel MOSFET
- Maker
- HXY
- Package
- SOT-883
- Pins
- 3
- Details
- N-channel MOSFET, 20 V, 0.7 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: N-channel MOSFET.
SWJ3134K-CSOT-883MOSFET, 3 pins, SeCoSMOSFET3 pinsSeCoS
- What it is
- MOSFET
- Maker
- SeCoS
- Package
- SOT-883
- Pins
- 3
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: MOSFET.
9 more parts have no package on record. Nothing rules them out, so they stay.
BFCN-1575+RF filter, Mini-CircuitsRF filterNot recordedMini-Circuits
- What it is
- RF filter
- Maker
- Mini-Circuits
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LTCC filter, 1530-1620 MHz
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: This part.
CDBMHT340-HFSchottky diode, ComchipSchottky diodeNot recordedComchip
- What it is
- Schottky diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- 40 V, 3 A Schottky barrier diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Schottky diode.
CHSDCDJGPSchottky diode, ChenmkoSchottky diodeNot recordedChenmko
- What it is
- Schottky diode
- Maker
- Chenmko
- Package
- Not recorded
- Pins
- Not recorded
- Details
- SCHOTTKY BARRIER RECTIFIER, 40 V, 3.0 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Schottky diode.
CHSDCDJGP-ASchottky diode, ChenmkoSchottky diodeNot recordedChenmko
- What it is
- Schottky diode
- Maker
- Chenmko
- Package
- Not recorded
- Pins
- Not recorded
- Details
- SCHOTTKY BARRIER RECTIFIER, 40 V, 3.0 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Schottky diode.
ET3164Load switch, ETEKLoad switchNot recordedETEK
- What it is
- Load switch
- Maker
- ETEK
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Load switch.
FM340-MHTSchottky diode, Formosa MicrosemiSchottky diodeNot recordedFormosa Microsemi
- What it is
- Schottky diode
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Schottky diode.
FM340-MHT-Q1Schottky diode, Formosa MicrosemiSchottky diodeNot recordedFormosa Microsemi
- What it is
- Schottky diode
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Schottky diode.
FM340-MST-Q1Schottky diode, Formosa MicrosemiSchottky diodeNot recordedFormosa Microsemi
- What it is
- Schottky diode
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Schottky diode.
FMOSAE0P75N02AE-HMOSFET, Formosa MicrosemiMOSFETNot recordedFormosa Microsemi
- What it is
- MOSFET
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: MOSFET.
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.
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.
MOSFET
Diode range, part lifted. Test drain to source first, then short gate to source and test again.
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.
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.
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.
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.
Codes that begin with 34
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 129 more parts.
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