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SMD code C106

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.

C106 on a chip capacitor

10 µF, 16 V

10 µF, 16 V tantalum capacitor

A moulded tantalum capacitor: 106 is the capacitance in picofarads (10 µF) and C is the rated-voltage code (16 V).

Check it with a meter

Lift one end and measure it on a capacitance range. A good one reads close to 10 µF. In circuit the meter also sees everything connected across it, so the reading means little until it is out. It is polarised: the band on the body marks the positive end, and a tantalum fitted backwards fails short, sometimes with a flame. A failed tantalum usually reads near 0 Ω both ways, often with a burnt or cracked body. A failed reading does not change what to fit: the marking still says 10 µF, 16 V. Fit the same capacitance at the same or a higher voltage.

On a transistor or diode body (SMC, SOT-23-5, SMCG), C106 is a part code instead. Those parts are listed below.

4 parts are printed C106

Not sure which one you have?

Answer up to 4 quick questions and these 4 parts are ranked, with a meter test that settles it. It works on a dead part too.

  • ET74AHC1G06TSOT-23-55 pins, ETEKNot recordedSOT-23-55 pinsETEK
    What it is
    Not recorded
    Maker
    ETEK
    Package
    SOT-23-5
    Pins
    5
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: This part.

    Datasheetfor ET74AHC1G06T, opens in a new tab
  • ET74HC1G06TSOT-23-55 pins, ETEKNot recordedSOT-23-55 pinsETEK
    What it is
    Not recorded
    Maker
    ETEK
    Package
    SOT-23-5
    Pins
    5
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: This part.

    Datasheetfor ET74HC1G06T, opens in a new tab
  • ET74LVC1G06TSOT-23-55 pins, ETEKNot recordedSOT-23-55 pinsETEK
    What it is
    Not recorded
    Maker
    ETEK
    Package
    SOT-23-5
    Pins
    5
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: This part.

    Datasheetfor ET74LVC1G06T, opens in a new tab
  • KRC106TO-92Digital transistor (NPN, resistors built in), 3 pins, KECDigital transistor (NPN, resistors built in)TO-923 pinsKEC
    What it is
    Digital transistor (NPN, resistors built in)
    Maker
    KEC
    Package
    TO-92
    Pins
    3
    Source
    Published code list

    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.

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.

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.

Printed with a code easy to misread as C106

One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.

Codes that begin with C106

For a marking with its end worn or burnt off. Each code has a page of its own.

Did you find your part?

Open this in the search to correct a character or try another package.