SMD code K8 in SOD-882

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.

2 parts in SOD-882 are printed K8

Not sure which one you have?

Answer up to 4 quick questions and these 19 parts are ranked, with a meter test that settles it. It works on a dead part too.

MM8Z15VB-CSOD-882Zener diode, SeCoSZener diodeSeCoS
What it is
Zener diode
Maker
SeCoS
Package
SOD-882
Pins
2
Source
Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
Datasheetfor MM8Z15VB-C, opens in a new tab
PZU5.6B2LSOD-882Zener diode, NXPZener diodeNXP
What it is
Zener diode
Maker
NXP
Package
SOD-882
Pins
2
Details
Zener diode: 5.49..5.73V, Zzt=40(Iz=5mA), 250mW
Source
Published code list
Is it dead? The meter test is below: Zener diode.
13 more parts have no package on record. Nothing rules them out, so they stay.
- BZT52C6V8KZener diode, Taiwan SemiconductorZener diodeTaiwan Semiconductor
  What it is
  Zener diode
  Maker
  Taiwan Semiconductor
  Package
  Not recorded
  Pins
  Not recorded
  Source
  Manufacturer datasheet
  Is it dead? The meter test is below: Zener diode.
  Datasheetfor BZT52C6V8K, opens in a new tab
- MM5Z6V8-Q1Zener diode, Formosa MicrosemiZener diodeFormosa Microsemi
  What it is
  Zener diode
  Maker
  Formosa Microsemi
  Package
  Not recorded
  Pins
  Not recorded
  Source
  Manufacturer datasheet
  Is it dead? The meter test is below: Zener diode.
  Datasheetfor MM5Z6V8-Q1, opens in a new tab
- AP8821N-28GIVoltage supervisor, Anwell SemiconductorVoltage supervisorAnwell Semiconductor
  What it is
  Voltage supervisor
  Maker
  Anwell Semiconductor
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 2.8V±2%, -Reset ODO, H-free
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- AP8821N-28GSVoltage supervisor, Anwell SemiconductorVoltage supervisorAnwell Semiconductor
  What it is
  Voltage supervisor
  Maker
  Anwell Semiconductor
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 2.8V±2%, -Reset ODO, H-free
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- AP8821N-28PIVoltage supervisor, Anwell SemiconductorVoltage supervisorAnwell Semiconductor
  What it is
  Voltage supervisor
  Maker
  Anwell Semiconductor
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 2.8V±2%, -Reset ODO
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- AP8821N-28PSVoltage supervisor, Anwell SemiconductorVoltage supervisorAnwell Semiconductor
  What it is
  Voltage supervisor
  Maker
  Anwell Semiconductor
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 2.8V±2%, -Reset ODO
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- BD46E485G-MVoltage supervisor, ROHMVoltage supervisorROHM
  What it is
  Voltage supervisor
  Maker
  ROHM
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 4.8V±1%, -MR, -Reset PPO, Rdt=50ms
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- EC95808N28C7IVoltage supervisor, E-CMOSVoltage supervisorE-CMOS
  What it is
  Voltage supervisor
  Maker
  E-CMOS
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 2.8V±2%, -Reset ODO
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- EC95808N28C7SVoltage supervisor, E-CMOSVoltage supervisorE-CMOS
  What it is
  Voltage supervisor
  Maker
  E-CMOS
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 2.8V±2%, -Reset ODO
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- LDTB113ZET1GDigital transistor (PNP, resistors built in), LRCDigital transistor (PNP, resistors built in)LRC
  What it is
  Digital transistor (PNP, resistors built in)
  Maker
  LRC
  Package
  Not recorded
  Pins
  Not recorded
  Details
  PNP transistor: Sw., 50V, 500mA, B>56, R1/R2=1k/10k
  Source
  Published code list
  Is it dead? The meter test is below: Digital transistor.
- R5426D107CANisshinbo Micro DevicesNot recordedNisshinbo Micro Devices
  What it is
  Not recorded
  Maker
  Nisshinbo Micro Devices
  Package
  Not recorded
  Pins
  Not recorded
  Details
  CMOS-IC: Li-Ion Battery Over-charge/discharge Protection, Vc/d=1,07V
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- RN2969FSToshibaNot recordedToshiba
  What it is
  Not recorded
  Maker
  Toshiba
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Si-pnp-Digi: Dual, Sw, 20V, 50mA, 50mW, R1/R2=47k/22k
  Source
  Published code list
  Is it dead? The meter test is below: This part.
- XC6GN0802HRTorexNot recordedTorex
  What it is
  Not recorded
  Maker
  Torex
  Package
  Not recorded
  Pins
  Not recorded
  Details
  CMOS-IC: Voltage Detector 0,8V, Reset Open drain output
  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.

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.

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.

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.

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.

Printed with a code easy to misread as K8

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

KB37

Did you find your part?

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