SMD code ABS
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.
22 parts are printed ABS
Not sure which one you have?
Answer up to 4 quick questions and these 22 parts are ranked, with a meter test that settles it. It works on a dead part too.
APL5102-34SOT-23LDO regulator, 3 pins, AnpecLDO regulatorSOT-233 pinsAnpec
- What it is
- LDO regulator
- Maker
- Anpec
- Package
- SOT-23
- Pins
- 3
- Details
- 150mA, 4µA Quiescent Current Regulator
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
2SC1416SSOT-893 pins, onsemiNot recordedSOT-893 pinsonsemi
- What it is
- Not recorded
- Maker
- onsemi
- Package
- SOT-89
- Pins
- 3
- Details
- PNP HV comp 2SC3646
- Source
- Published code list
Is it dead? The meter test is below: This part.
AME8800BEEVSOT-23-5LDO regulator, 5 pins, AMELDO regulatorSOT-23-55 pinsAME
- What it is
- LDO regulator
- Maker
- AME
- Package
- SOT-23-5
- Pins
- 5
- Details
- Linear voltage regulator IC: LDO, 3.0V±1.5%, 300mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
AME8800BEEVZSOT-23-5LDO regulator, 5 pins, AMELDO regulatorSOT-23-55 pinsAME
- What it is
- LDO regulator
- Maker
- AME
- Package
- SOT-23-5
- Pins
- 5
- Details
- Linear voltage regulator IC: LDO, 3.0V±1.5%, 300mA, L-Free
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
APL5102-34AISOT-23LDO regulator, 3 pins, Anpec ElectronicsLDO regulatorSOT-233 pinsAnpec Electronics
- What it is
- LDO regulator
- Maker
- Anpec Electronics
- Package
- SOT-23
- Pins
- 3
- Details
- Linear voltage regulator IC: LDO, 3.4V±2%, 150mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
APL5102-34BISOT-23-5LDO regulator, 5 pins, Anpec ElectronicsLDO regulatorSOT-23-55 pinsAnpec Electronics
- What it is
- LDO regulator
- Maker
- Anpec Electronics
- Package
- SOT-23-5
- Pins
- 5
- Details
- Linear voltage regulator IC: LDO, 3.4V±2%, 150mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
BCW60BSOT-23NPN transistor, 3 pins, InfineonNPN transistorSOT-233 pinsInfineon
- What it is
- NPN transistor
- Maker
- Infineon
- Package
- SOT-23
- Pins
- 3
- Source
- Published code list
Is it dead? The meter test is below: NPN transistor.
BFP460SOT-343RF transistor, 4 pins, InfineonRF transistorSOT-3434 pinsInfineon
- What it is
- RF transistor
- Maker
- Infineon
- Package
- SOT-343
- Pins
- 4
- Source
- Published code list
Is it dead? The meter test is below: Bipolar transistor.
LM4040BIX3-3.0SOT-3233 pins, Analog DevicesNot recordedSOT-3233 pinsAnalog Devices
- What it is
- Not recorded
- Maker
- Analog Devices
- Package
- SOT-323
- Pins
- 3
- Details
- 3.000V 0.2% shunt V ref
- Source
- Published code list
Is it dead? The meter test is below: This part.
MAX4470XKSOT-3535 pins, Analog DevicesNot recordedSOT-3535 pinsAnalog Devices
- What it is
- Not recorded
- Maker
- Analog Devices
- Package
- SOT-353
- Pins
- 5
- Source
- Published code list
Is it dead? The meter test is below: This part.
5 more parts have no package on record
2SA1416-SSanyo ElectricNot recordedNot recordedNot recordedSanyo Electric
- What it is
- Not recorded
- Maker
- Sanyo Electric
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Si-pnp: HV, Sw, 120V, 1A, 500mW, B=140..280, 120MHz
- Source
- Published code list
Is it dead? The meter test is below: This part.
AME8800BEEVLLDO regulator, AMELDO regulatorNot recordedNot recordedAME
- What it is
- LDO regulator
- Maker
- AME
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 3.0V±1.5%, 300mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
AME8800BEEVYLDO regulator, AMELDO regulatorNot recordedNot recordedAME
- What it is
- LDO regulator
- Maker
- AME
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 3.0V±1.5%, 300mA, L-Free
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
MAX1072VTB10 pins, Analog DevicesNot recordedNot recorded10 pinsAnalog Devices
- What it is
- Not recorded
- Maker
- Analog Devices
- Package
- Not recorded
- Pins
- 10
- Source
- Published code list
Is it dead? The meter test is below: This part.
MAX6401BS284 pins, Analog DevicesNot recordedNot recorded4 pinsAnalog Devices
- What it is
- Not recorded
- Maker
- Analog Devices
- Package
- Not recorded
- Pins
- 4
- Source
- Published code list
Is it dead? The meter test is below: This part.
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.
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.
Bipolar transistor
Diode range, part lifted or its base leg off the pad.
Working, it reads
From the base, one probe colour 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.
Printed with a code easy to misread as ABS
One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.
Codes that begin with ABS
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 170 more parts.
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