SMD code CKB
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.
14 parts are printed CKB
Not sure which one you have?
Answer up to 4 quick questions and these 14 parts are ranked, with a meter test that settles it. It works on a dead part too.
CMPT8099SOT-23NPN transistor, 3 pins, Central SemiconductorNPN transistorSOT-233 pinsCentral Semiconductor
- What it is
- NPN transistor
- Maker
- Central Semiconductor
- Package
- SOT-23
- Pins
- 3
- Details
- Si-npn: AF, 80V, 500mA, 350mW, B=100..300, >150MHz
- Source
- Published code list
Is it dead? The meter test is below: NPN transistor.
IXD3235B2BDER-GUSP-6CDC-DC converter, 6 pins, IXYSDC-DC converterUSP-6C6 pinsIXYS
- What it is
- DC-DC converter
- Maker
- IXYS
- Package
- USP-6C
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM, st-dwn, 2.15V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
IXD3235B2BDMR-GSOT-23-5DC-DC converter, 5 pins, IXYSDC-DC converterSOT-23-55 pinsIXYS
- What it is
- DC-DC converter
- Maker
- IXYS
- Package
- SOT-23-5
- Pins
- 5
- Details
- DC/DC voltage converter IC: PWM, st-dwn, 2.15V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9235B2BDER-GUSP-6CDC-DC converter, 6 pins, TorexDC-DC converterUSP-6C6 pinsTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6C
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM, st-dwn, 2.15V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9235B2BDMR-GSOT-23-5DC-DC converter, 5 pins, TorexDC-DC converterSOT-23-55 pinsTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- SOT-23-5
- Pins
- 5
- Details
- DC/DC voltage converter IC: PWM, st-dwn, 2.15V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9265C261MR-GSOT-23-5DC-DC converter, 5 pins, TorexDC-DC converterSOT-23-55 pinsTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- SOT-23-5
- Pins
- 5
- Details
- DC/DC voltage converter IC: PFM st-dwn, 2.6V±2%, 200mA, +CE, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
8 more parts have no package on record
IXD3235B2BD0R-GDC-DC converter, IXYSDC-DC converterNot recordedNot recordedIXYS
- What it is
- DC-DC converter
- Maker
- IXYS
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PWM, st-dwn, 2.15V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
IXD3235B2BD4R-GDC-DC converter, IXYSDC-DC converterNot recordedNot recordedIXYS
- What it is
- DC-DC converter
- Maker
- IXYS
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PWM, st-dwn, 2.15V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
IXD9205B2B3AR-GDC-DC converter, ZilogDC-DC converterNot recordedNot recordedZilog
- What it is
- DC-DC converter
- Maker
- Zilog
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PWM st-dwn, 3MHz, 2.15V±2%, 600mA, -CE, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9235B2BD0R-GDC-DC converter, TorexDC-DC converterNot recordedNot recordedTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PWM, st-dwn, 2.15V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9235B2BD4R-GDC-DC converter, TorexDC-DC converterNot recordedNot recordedTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PWM, st-dwn, 2.15V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9265C2614R-GDC-DC converter, TorexDC-DC converterNot recordedNot recordedTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PFM st-dwn, 2.6V±2%, 200mA, +CE, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XCL205B2B3AR-GDC-DC converter, TorexDC-DC converterNot recordedNot recordedTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PWM st-dwn, 3MHz, 2.15V±2%, 600mA, -CE, CL
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XDL601B3B382QDC-DC converter, TorexDC-DC converterNot recordedNot recordedTorex
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- Not recorded
- Pins
- Not recorded
- Details
- DC/DC voltage converter IC: PWM st-dwn, 3.15V±2%, 1.5A, 3MHz, +CE, CL
- 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.
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.
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.
Printed with a code easy to misread as CKB
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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