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SMD code K082

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.

K082 on a chip resistor

82 Ω

82 Ω resistor

The K is both the decimal point and the multiplier: 82 Ω.

Check it with a meter

Lift one end and measure across it. A good one reads 82 Ω. Measuring it in circuit reads the parallel combination of everything around it, which is almost always lower, never higher: well above 82 Ω on the board is a fault. Open, or well above 82 Ω, means it has failed: burnt, cracked or corroded. That does not change what to fit: the marking still says 82 Ω. A burnt resistor usually means the part it feeds drew too much, so find that before fitting a new one.

On a transistor or diode body (SMC, SMA), K082 is a part code instead. Those parts are listed below.

3 parts are printed K082

Not sure which one you have?

Answer up to 4 quick questions and these 3 parts are ranked, with a meter test that settles it. It works on a dead part too.

2 pins. What differs:

  • K0820S1URPSMALittelfuseSMALittelfuse
    What it is
    Not recorded
    Maker
    Littelfuse
    Package
    SMA
    Pins
    2
    Details
    Silicon unilateral voltage triggered switch: Vbr=75..90V, Vrwm=70V, Ipp=80A(1ms)
    Source
    Published code list

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

  • STBK082SMCEIC SemiconductorSMCEIC Semiconductor
    What it is
    TVS diode
    Maker
    EIC Semiconductor
    Package
    SMC
    Pins
    2
    Details
    Transient voltage supressor: Vbr=73.8..90.2V, Vrwm=66.4V, 12.7A, 1500W(1ms), Bidir.
    Source
    Published code list

    Is it dead? The meter test is below: TVS or ESD protection diode.

  • STUK082SMCEIC SemiconductorSMCEIC Semiconductor
    What it is
    TVS diode
    Maker
    EIC Semiconductor
    Package
    SMC
    Pins
    2
    Details
    Transient voltage supressor: Vbr=73.8..90.2V, Vrwm=66.4V, 12.7A, 1500W(1ms)
    Source
    Published code list

    Is it dead? The meter test is below: TVS or ESD protection 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.

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.

Printed with a code easy to misread as K082

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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