SMD code B8M
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.
16 parts are printed B8M
Not sure which one you have?
Answer up to 4 quick questions and these 16 parts are ranked, with a meter test that settles it. It works on a dead part too.
S-80827CNMCSOT-23-55 pins, ABLICNot recordedSOT-23-55 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-23-5
- Pins
- 5
- Details
- CMOS-IC: Voltage Detector 2.7V, -Reset Open drain output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80827CNMC-B8M-T2SOT-23-5Voltage supervisor, 5 pins, Seiko InstrumentsVoltage supervisorSOT-23-55 pinsSeiko Instruments
- What it is
- Voltage supervisor
- Maker
- Seiko Instruments
- Package
- SOT-23-5
- Pins
- 5
- Details
- Voltage detector IC: 2.7V±2%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80827CNMC-B8MT2SOT-23-55 pins, ABLICNot recordedSOT-23-55 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-23-5
- Pins
- 5
- Details
- equivalent S-80827CNY
- Source
- Published code list
Is it dead? The meter test is below: This part.
S-80827CNNBSOT-1434 pins, ABLICNot recordedSOT-1434 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-143
- Pins
- 4
- Details
- CMOS-IC: Voltage Detector 2.7V, -Reset Open drain output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80827CNNB-B8M-T2SOT-143Voltage supervisor, 4 pins, Seiko InstrumentsVoltage supervisorSOT-1434 pinsSeiko Instruments
- What it is
- Voltage supervisor
- Maker
- Seiko Instruments
- Package
- SOT-143
- Pins
- 4
- Details
- Voltage detector IC: 2.7V±2%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80827CNNB-B8MT2SOT-3434 pins, ABLICNot recordedSOT-3434 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-343
- Pins
- 4
- Details
- equivalent S-80827CNY
- Source
- Published code list
Is it dead? The meter test is below: This part.
S-80827CNUASOT-893 pins, ABLICNot recordedSOT-893 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-89
- Pins
- 3
- Details
- CMOS-IC: Voltage Detector 2.7V, -Reset Open drain output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80827CNUA-B8M-T2SOT-89Voltage supervisor, 3 pins, Seiko InstrumentsVoltage supervisorSOT-893 pinsSeiko Instruments
- What it is
- Voltage supervisor
- Maker
- Seiko Instruments
- Package
- SOT-89
- Pins
- 3
- Details
- Voltage detector IC: 2.7V±2%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80827CNUA-B8MT2SOT-893 pins, ABLICNot recordedSOT-893 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-89
- Pins
- 3
- Details
- equivalent S-80827CNY
- Source
- Published code list
Is it dead? The meter test is below: This part.
XC66DC1839MSOT-23-55 pins, TorexNot recordedSOT-23-55 pinsTorex
- What it is
- Not recorded
- Maker
- Torex
- Package
- SOT-23-5
- Pins
- 5
- Details
- Linear voltage regulator with volatge detector: LDO, 3.9V±2%, 100mA, Vdet=1.8V±2%, +Reset PPO
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
XC66DN1839MSOT-23-55 pins, TorexNot recordedSOT-23-55 pinsTorex
- What it is
- Not recorded
- Maker
- Torex
- Package
- SOT-23-5
- Pins
- 5
- Details
- Linear voltage regulator with volatge detector: LDO, 3.9V±2%, 100mA, Vdet=1.8V±2%, +Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
XC6115B420MRSOT-23-5Voltage supervisor, 5 pins, TorexVoltage supervisorSOT-23-55 pinsTorex
- What it is
- Voltage supervisor
- Maker
- Torex
- Package
- SOT-23-5
- Pins
- 5
- Details
- CMOS-IC: VDet 2.0V, +Rst PPO, -Rst ODO, Wt=200ms, Rt=25ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
3 more parts have no package on record
S-80827CNPFABLICNot recordedNot recordedNot recordedABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS-IC: Voltage Detector 2.7V, -Reset Open drain output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80827CNPF-B8M-T2Voltage supervisor, Seiko InstrumentsVoltage supervisorNot recordedNot recordedSeiko Instruments
- What it is
- Voltage supervisor
- Maker
- Seiko Instruments
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 2.7V±2%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80827CNPF-B8MTF4 pins, ABLICNot recordedNot recorded4 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- Not recorded
- Pins
- 4
- Details
- equivalent S-80827CNY
- 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.
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.
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.
Printed with a code easy to misread as B8M
One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.
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