SMD code LJt
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.
The last letter, t, is lower case, which on NXP and Philips parts is a date or factory code, so it was set aside and LJ was searched.
48 parts are printed LJt
Not sure which one you have?
Answer up to 4 quick questions and these 48 parts are ranked, with a meter test that settles it. It works on a dead part too.
S-8053ALR-LJSOT-893 pins, ABLICNot recordedSOT-893 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-89
- Pins
- 3
- Details
- equivalent S-8053ALR
- Source
- Published code list
Is it dead? The meter test is below: This part.
SDM10U45LPSOD-8822 pins, Diodes IncorporatedNot recordedSOD-8822 pinsDiodes Incorporated
- What it is
- Not recorded
- Maker
- Diodes Incorporated
- Package
- SOD-882
- Pins
- 2
- Details
- Si-diode: Schottky, 45V, 100mA, Vf<800mV(100mA)
- Source
- Published code list
Is it dead? The meter test is below: Schottky diode.
SK415CSMCSchottky diode, 2 pins, Fagor ElectronicaSchottky diodeSMC2 pinsFagor Electronica
- What it is
- Schottky diode
- Maker
- Fagor Electronica
- Package
- SMC
- Pins
- 2
- Details
- Diode: SBR, 150V, 4A, Vf<0.9V(4A)
- Source
- Published code list
Is it dead? The meter test is below: Schottky 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.
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.
Schottky diode
Diode range, part lifted or one leg off the pad. Red probe on the anode.
Working, it reads
About 0.15 to 0.45 V anode to cathode, roughly half a silicon diode, and open the other way.
Dead, it reads
- The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
- A reading the wrong way round as well: leaky.
- Open both ways: failed open.
- 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 large Schottky can read about 0.1 V forward and beep like a short, and leaks a little the wrong way when good, more when warm. It is shorted only if it reads the same both ways. Measure it cold, beside an identical cold one.
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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