SMD code UK-
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.
75 parts are printed UK-
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.
74LVC1G34SESOT-3535 pins, Diodes IncorporatedNot recordedSOT-3535 pinsDiodes Incorporated
- What it is
- Not recorded
- Maker
- Diodes Incorporated
- Package
- SOT-353
- Pins
- 5
- Details
- CMOS logic IC: Noninverting buffer
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
74LVC1G34SE-7SOT-353Logic gate, 5 pins, Diodes IncorporatedLogic gateSOT-3535 pinsDiodes Incorporated
- What it is
- Logic gate
- Maker
- Diodes Incorporated
- Package
- SOT-353
- Pins
- 5
- Details
- Single Buffer Gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
74LVC1G34W5SOT-23-55 pins, Diodes IncorporatedNot recordedSOT-23-55 pinsDiodes Incorporated
- What it is
- Not recorded
- Maker
- Diodes Incorporated
- Package
- SOT-23-5
- Pins
- 5
- Details
- CMOS logic IC: Noninverting buffer
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
74LVC1G34W5-7SOT-23-5Logic gate, 5 pins, Diodes IncorporatedLogic gateSOT-23-55 pinsDiodes Incorporated
- What it is
- Logic gate
- Maker
- Diodes Incorporated
- Package
- SOT-23-5
- Pins
- 5
- Details
- Single Buffer Gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
74LVC1G34ZSOT-5535 pins, Diodes IncorporatedNot recordedSOT-5535 pinsDiodes Incorporated
- What it is
- Not recorded
- Maker
- Diodes Incorporated
- Package
- SOT-553
- Pins
- 5
- Details
- CMOS logic IC: Noninverting buffer
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
CD214A-T14CASMATVS diode, 2 pins, BournsTVS diodeSMA2 pinsBourns
- What it is
- TVS diode
- Maker
- Bourns
- Package
- SMA
- Pins
- 2
- Details
- TVS: 14V, 17.2A, 400W(1ms), Bidirectional
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
9 more parts have no package on record
74LVC1G34FZ4Diodes IncorporatedNot recordedNot recordedNot recordedDiodes Incorporated
- What it is
- Not recorded
- Maker
- Diodes Incorporated
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: Noninverting buffer
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
74LVC1G34FZ4-7Logic gate, Diodes IncorporatedLogic gateNot recordedNot recordedDiodes Incorporated
- What it is
- Logic gate
- Maker
- Diodes Incorporated
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Single Buffer Gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
74LVC1G34Z-7Logic gate, Diodes IncorporatedLogic gateNot recordedNot recordedDiodes Incorporated
- What it is
- Logic gate
- Maker
- Diodes Incorporated
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Single Buffer Gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
BD45E275G-MVoltage supervisor, ROHMVoltage supervisorNot recordedNot recordedROHM
- What it is
- Voltage supervisor
- Maker
- ROHM
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 2.7V±1%, -MR, -Reset ODO, Rdt=50ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
BD45472GVoltage supervisor, ROHMVoltage supervisorNot recordedNot recordedROHM
- What it is
- Voltage supervisor
- Maker
- ROHM
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS-IC: Voltage Detector 4,7V, -Reset Open drain output, 200ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
CZRER11VB-HZener diode, ComchipZener diodeNot recordedNot recordedComchip
- What it is
- Zener diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Zener diode: 10.73 11.27V, Zzt=18, Izt=5mA, 150mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
CZRF11VBZener diode, ComchipZener diodeNot recordedNot recordedComchip
- What it is
- Zener diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Zener diode: 10.73..11.27V, Izt=5mA, Zzt=18, 200mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
CZRQR11VBZener diode, ComchipZener diodeNot recordedNot recordedComchip
- What it is
- Zener diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Zener diode: 10.73..11.27V, Izt=5mA, Zzt=18, 125mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
CZRU11VBZener diode, ComchipZener diodeNot recordedNot recordedComchip
- What it is
- Zener diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Zener diode: 10.73..11.27V, Izt=5mA, Zzt=18, 150mW
- Source
- Published code list
Is it dead? The meter test is below: Zener 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.
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.
TVS or ESD protection diode
Diode range, from the protected line to ground, part lifted if you can.
Working, it reads
A one-way part reads about 0.6 to 0.8 V forward and open in reverse. A two-way part reads open both ways. Arrays with several lines read as the datasheet's diagram draws them.
Dead, it reads
- From the line to ground, the same reading both ways, near 0 V with a continuous beep: shorted.
- A reading both ways on a one-way part: leaky.
- A one-way part open both ways: failed open.
- On the board
- , a line reading shorted to ground can be this part or anything else on that line. Lift it: if the short goes with it, it has failed.
- Compare:
- The same part on the next line or connector pin is the healthy reading to compare with.
- Watch for:
- A two-way part reads open both ways when it is good, exactly like one that has failed open. The meter cannot tell them apart; an identical part on the next line can.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Zener diode
Diode range for the forward check, part lifted, red probe on the anode. A bench supply for the Zener voltage.
Working, it reads
About 0.6 to 0.8 V forward and open in reverse on the diode range. Its Zener voltage shows only on a supply: feed it through a resistor that sets about 5 mA, cathode to positive, read quickly, and it should hold near its rated voltage.
Dead, it reads
- The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
- Open both ways, forward too: failed open.
- Holds well off its rated voltage on the supply test: drifted.
- A soft knee, or a voltage that creeps on the supply test: 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 meter's diode range stops at about 2 to 3 V, so almost every Zener reads open in reverse on it, good or bad; a 3 V meter may just show a 2.4 or 2.7 V part. Above about 3 V the meter cannot tell a Zener from a plain diode.
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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