SMD code 3 in DFN
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.
14 parts in DFN are printed 3
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.
ET74AUP1G32NDFNLogic gate, ETEKLogic gateNot recordedETEK
- What it is
- Logic gate
- Maker
- ETEK
- Package
- DFN
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
ET74AUP1G32YDFNLogic gate, ETEKLogic gateNot recordedETEK
- What it is
- Logic gate
- Maker
- ETEK
- Package
- DFN
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
ET74LVC1G32YDFNLogic gate, ETEKLogic gateNot recordedETEK
- What it is
- Logic gate
- Maker
- ETEK
- Package
- DFN
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
MC74VHC1G32MU2DFNLogic gate, onsemiLogic gateNot recordedonsemi
- What it is
- Logic gate
- Maker
- onsemi
- Package
- DFN
- Pins
- Not recorded
- Details
- Single 2-Input OR Gate
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
MC74VHC1G32MU1DFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- 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.
NL17SG00AMUDFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- Pins
- Not recorded
- Details
- CMOS logic IC: 2-input NAND gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
NL17SGU04AMUDFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- Pins
- Not recorded
- Details
- CMOS logic IC: Single unbuffered inverter
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
NL17SZ32MU3DFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- 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.
NLU1G32AMUDFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- 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.
NLU1G32MUDFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- 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.
NLU1G32MUTCGDFN6 pins, onsemiNot recorded6 pinsonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- Pins
- 6
- Source
- Published code list
Is it dead? The meter test is below: This part.
NLU2GU04AMUDFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- Pins
- Not recorded
- Details
- CMOS logic IC: Dual unbuffered inverter
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
NLU2GU04CMUDFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- Pins
- Not recorded
- Details
- CMOS logic IC: Dual unbuffered inverter
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
NLX2G14CMUDFNonsemiNot recordedNot recordedonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- DFN
- Pins
- Not recorded
- Details
- CMOS logic IC: Dual inverter with Schmitt-trigger inputs
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
1 more part has no package on record. Nothing rules it out, so it stays.
1SS400GSwitching diode, Formosa MicrosemiSwitching diodeNot recordedFormosa Microsemi
- What it is
- Switching diode
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
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.
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.
Silicon diode
Diode range, part lifted or one leg off the pad. Red probe on the anode.
Working, it reads
About 0.5 to 0.8 V anode to cathode, and open the other way. Small switching diodes read about 0.6 to 0.7 V; large rectifiers can read a little lower.
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.
- A reading the wrong way round as well: 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 three-pin body can hold two diodes. With a common pin they read two junctions from that pin, just like a transistor; in series they read two drops end to end. Test each pair the datasheet names.
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 3
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 3,964 more parts.
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