SMD code L in SOD-323
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.
7 parts in SOD-323 are printed L
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.
15 parts have no package on record. Nothing rules them out, so they stay.
all onsemi. What differs:
NCP161AFCS350LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LDO Regulator for RF and Analog Circuits - Ultra-Low Noise and High PSRR
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP161AFCT350LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LDO Regulator for RF and Analog Circuits - Ultra-Low Noise and High PSRR
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP161AFCTC350LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LDO Regulator for RF and Analog Circuits - Ultra-Low Noise and High PSRR
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP161BFCS350LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LDO Regulator for RF and Analog Circuits - Ultra-Low Noise and High PSRR
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP161BFCT350LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LDO Regulator for RF and Analog Circuits - Ultra-Low Noise and High PSRR
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP167AFCT350LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LDO Regulator - Ultra-Low Noise, High PSRR, RF and Analog Circuits
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP167AFCTC350LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LDO Regulator - Ultra-Low Noise, High PSRR, RF and Analog Circuits
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP703MX30LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- 300 mA, Ultra-Low Quiescent Current, I 12 A, Ultra-Low Noise, LDO Voltage Regulator
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP707AMX310LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Low Dropout Regulator, Very-Low Quiescent Current, I 25 A, Low Noise
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP707BMX310LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Low Dropout Regulator, Very-Low Quiescent Current, I 25 A, Low Noise
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP707CMX150LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Low Dropout Regulator, Very-Low Quiescent Current, I 25 A, Low Noise
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCP717CMX150LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- 300 mA, Very-Low Quiescent Current, I 25 A, Low Noise, Low Dropout Regulator
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCV8152MX300180LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage Regulator - Dual, Low I , Low Dropout
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NCV8703MX30LDO regulatorLDO regulator
- What it is
- LDO regulator
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- LDO Voltage Regulator - Ultra-Low Quiescent Current, I Ultra-Low Noise
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Voltage regulator.
NSBC114EPDP6Digital transistor (resistors built in)Digital transistor (resistors built in)
- What it is
- Digital transistor (resistors built in)
- Maker
- onsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Complementary Bias Resistor Transistors R1 = 10 k , R2 = 10 k
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Digital transistor.
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.
Digital transistor
Ohms range, part lifted. The datasheet gives the built-in resistors: R1 in series with the base, R2 from base to emitter.
Working, it reads
Base to emitter reads about R1 plus R2 either way round, about 20 kΩ on a 10 k and 10 k part, give or take their wide tolerance. Collector to emitter reads open. A part with no R2 reads a junction behind R1 one way instead.
Dead, it reads
- Collector to emitter the same both ways, near 0 Ω with a continuous beep: shorted.
- From the base, open or far above R1 plus R2: R1 has failed. Static damage shows here most often.
- Base to emitter near 0 Ω: failed short.
- 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:
- The readings depend on the resistor values, so an identical part elsewhere on the board is the surest reference. Measure it the same way.
- Watch for:
- On the diode range a good part with 10 kΩ resistors reads open on every pair, so a good part looks dead there. Use the ohms range.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
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