SMD code CEs
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, s, is lower case, which on NXP and Philips parts is a date or factory code, so it was set aside and CE was searched.
237 parts are printed CEs
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.
SiP6332R21D1SOT-23Voltage supervisor, 3 pins, VishayVoltage supervisorSOT-233 pinsVishay
- What it is
- Voltage supervisor
- Maker
- Vishay
- Package
- SOT-23
- Pins
- 3
- Details
- CMOS-IC: Voltage Detector 2,1V, -Reset Push-pull output 1,5ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
SMBG26CASMBGTVS diode, 2 pins, VishayTVS diodeSMBG2 pinsVishay
- What it is
- TVS diode
- Maker
- Vishay
- Package
- SMBG
- Pins
- 2
- Details
- TVS: 26V, 14.3A, 600W(1ms), Bidirectional
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SMBJ26ASMBTVS diode, 2 pins, VishayTVS diodeSMB2 pinsVishay
- What it is
- TVS diode
- Maker
- Vishay
- Package
- SMB
- Pins
- 2
- Source
- An older or alternative marking, from a published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SMBJ26CA-TSMBTVS diode, 2 pins, INPAQ TechnologyTVS diodeSMB2 pinsINPAQ Technology
- What it is
- TVS diode
- Maker
- INPAQ Technology
- Package
- SMB
- Pins
- 2
- Details
- Transient voltage supressor: Vbr=28.9..31.9V, Vrwm=26V, Ipp=14.3A, 600W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SODJ26CA-SHSOD-123FTVS diode, 2 pins, LRCTVS diodeSOD-123F2 pinsLRC
- What it is
- TVS diode
- Maker
- LRC
- Package
- SOD-123F
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=26V, Vbr=28.9..31.9V, Ipp=20A(8.3ms), 200W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SZNZ8F3V3SMX2WT5GSOD-882Zener diode, 2 pins, onsemiZener diodeSOD-8822 pinsonsemi
- What it is
- Zener diode
- Maker
- onsemi
- Package
- SOD-882
- Pins
- 2
- Details
- Zener diode: 3.14..3.47V, Izt=5mA, Zzt=100, 250mW, Pb-Free
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
TFL2568SOT-223NPN transistor, Tin Far ElectronicNPN transistorSOT-223Not recordedTin Far Electronic
- What it is
- NPN transistor
- Maker
- Tin Far Electronic
- Package
- SOT-223
- Pins
- Not recorded
- Details
- NPN transistor: Vid, 400V, 300mA 5W, B=100..250, 50MHz
- Source
- Published code list
Is it dead? The meter test is below: NPN transistor.
TS3809CXESOT-23Voltage supervisor, 3 pins, Taiwan SemiconductorVoltage supervisorSOT-233 pinsTaiwan Semiconductor
- What it is
- Voltage supervisor
- Maker
- Taiwan Semiconductor
- Package
- SOT-23
- Pins
- 3
- Details
- Voltage detector IC: 2.93V±1.5%, -Reset PPO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
7 more parts have no package on record
S-8244AASPH-CESTF8 pins, ABLICNot recordedNot recorded8 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- Not recorded
- Pins
- 8
- Source
- Published code list
Is it dead? The meter test is below: This part.
Si1972DHN-channel MOSFET, VishayN-channel MOSFETNot recordedNot recordedVishay
- What it is
- N-channel MOSFET
- Maker
- Vishay
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Published code list
Is it dead? The meter test is below: N-channel MOSFET.
SMA6L26ATVS diode, LittelfuseTVS diodeNot recordedNot recordedLittelfuse
- What it is
- TVS diode
- Maker
- Littelfuse
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Transient voltage supressor: Vrwm=26.0V, Vbr=28.90..31.90V, 14.3A, 600W(1ms)
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SMAS26ATVS diode, Formosa MicrosemiTVS diodeNot recordedNot recordedFormosa Microsemi
- What it is
- TVS diode
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Transient voltage supressor: Vrwm=26V, Vbr=28.9..31.9V, Ipp=9.5A, 400W(1ms)
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SMBS26CATVS diode, Formosa MicrosemiTVS diodeNot recordedNot recordedFormosa Microsemi
- What it is
- TVS diode
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Transient voltage supressor: Vrwm=26V, Vbr=28.9..31.9V, Ipp=14.2A, 600W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SMD30KPA96CATVS diode, MDE SemiconductorTVS diodeNot recordedNot recordedMDE Semiconductor
- What it is
- TVS diode
- Maker
- MDE Semiconductor
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Transient voltage supressor: Vrwm=96.0V, Vbr=107.2V, Vcl=156.0V, Ipp=194.2A, 30000W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SN74LVC1G08YZPTexas InstrumentsNot recordedNot recordedNot recordedTexas Instruments
- What it is
- Not recorded
- Maker
- Texas Instruments
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: 2-input AND gate
- 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.
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.
N-channel MOSFET
Diode range, part lifted. Test drain to source first, then short gate to source and test again.
Working, it reads
Red probe on the source, black on the drain: about 0.4 to 0.9 V, the body diode. Open the other way. The gate reads open to both other pins, both ways.
Dead, it reads
- Drain to source the same both ways, near 0 V with a continuous beep, and still so after shorting gate to source: shorted. The classic failure.
- The gate reads low to source or drain: gate shorted. Often all three pins end up shorted together.
- No body diode at all: failed open.
- On the board
- the gate usually has a resistor to the source, so gate to source reads that resistor, which is not a fault. A drain short can be the load. Lift a leg to be sure.
- Compare:
- If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
- Watch for:
- The diode range can charge the gate enough to turn the part on, and then drain to source reads near 0 both ways on a good part. Short gate to source and test again before you condemn it.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
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.
NPN transistor
Diode range, part lifted or its base leg off the pad.
Working, it reads
Red probe on the base reads about 0.6 to 0.75 V to the emitter and to the collector, and open the other way round. Collector to emitter reads open both ways.
Dead, it reads
- Collector to emitter the same both ways, near 0 V with a continuous beep: shorted. The commonest failure.
- The base the same both ways to another pin, near 0 V or a middling value: a shorted junction.
- Only one junction reads, or none: a junction has failed open. It then looks like a diode.
- A reading the wrong way round, where it should be open: 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 pair of diodes with a common pin reads just like a transistor, and some transistors carry a built-in diode or resistor. The datasheet says which.
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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