SMD code N0 in SOT-143
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.
2 parts in SOT-143 are printed N0
Not sure which one you have?
Answer up to 4 quick questions and these 25 parts are ranked, with a meter test that settles it. It works on a dead part too.
R3111Q301ASOT-1434 pins, Nisshinbo Micro DevicesNot recorded4 pinsNisshinbo Micro Devices
- What it is
- Not recorded
- Maker
- Nisshinbo Micro Devices
- Package
- SOT-143
- Pins
- 4
- Details
- CMOS-IC: Voltage Detector 3V±2.0%, Reset Push-pull output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC61CN3002NSOT-1434 pins, TorexNot recorded4 pinsTorex
- What it is
- Not recorded
- Maker
- Torex
- Package
- SOT-143
- Pins
- 4
- Details
- CMOS-IC: Voltage Detector 3V, Reset Open drain output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
13 more parts have no package on record. Nothing rules them out, so they stay.
AP139-15TWAnachipNot recordedNot recordedAnachip
- What it is
- Not recorded
- Maker
- Anachip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- VR-IC: LDO, LN, CE, 1.5V±2%, 300mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
AP8821N-50GIVoltage supervisor, Anwell SemiconductorVoltage supervisorNot recordedAnwell Semiconductor
- What it is
- Voltage supervisor
- Maker
- Anwell Semiconductor
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 5.0V±2%, -Reset ODO, H-free
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
AP8821N-50GSVoltage supervisor, Anwell SemiconductorVoltage supervisorNot recordedAnwell Semiconductor
- What it is
- Voltage supervisor
- Maker
- Anwell Semiconductor
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 5.0V±2%, -Reset ODO, H-free
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
AP8821N-50PIVoltage supervisor, Anwell SemiconductorVoltage supervisorNot recordedAnwell Semiconductor
- What it is
- Voltage supervisor
- Maker
- Anwell Semiconductor
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 5.0V±2%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
AP8821N-50PSVoltage supervisor, Anwell SemiconductorVoltage supervisorNot recordedAnwell Semiconductor
- What it is
- Voltage supervisor
- Maker
- Anwell Semiconductor
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 5.0V±2%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
BCT2561ELS30-TRLDO regulator, Broadchip Technology GroupLDO regulatorNot recordedBroadchip Technology Group
- What it is
- LDO regulator
- Maker
- Broadchip Technology Group
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 3.0V±1%, 300mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
BCT2562ELS30-TRLDO regulator, Broadchip Technology GroupLDO regulatorNot recordedBroadchip Technology Group
- What it is
- LDO regulator
- Maker
- Broadchip Technology Group
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 3.0V±2%, 600mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
BL8064CB3ATR20LDO regulator, Shanghai BellingLDO regulatorNot recordedShanghai Belling
- What it is
- LDO regulator
- Maker
- Shanghai Belling
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 2.0V±2%, 250mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
BL8064CB3ATR30LDO regulator, Shanghai BellingLDO regulatorNot recordedShanghai Belling
- What it is
- LDO regulator
- Maker
- Shanghai Belling
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 3.0V±2%, 250mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
BL8064CB3ATR40LDO regulator, Shanghai BellingLDO regulatorNot recordedShanghai Belling
- What it is
- LDO regulator
- Maker
- Shanghai Belling
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 4.0V±2%, 250mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
BL8064CB3ATR50LDO regulator, Shanghai BellingLDO regulatorNot recordedShanghai Belling
- What it is
- LDO regulator
- Maker
- Shanghai Belling
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 5.0V±2%, 250mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
EC95808N50C7IVoltage supervisor, E-CMOSVoltage supervisorNot recordedE-CMOS
- What it is
- Voltage supervisor
- Maker
- E-CMOS
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 5.0V±2%, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
EC95808N50C7SVoltage supervisor, E-CMOSVoltage supervisorNot recordedE-CMOS
- What it is
- Voltage supervisor
- Maker
- E-CMOS
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 5.0V±2%, -Reset ODO
- 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.
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.
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 N0
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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