Skip to content

SMD code 6Ka

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, a, is lower case, which on NXP and Philips parts is a date or factory code, so it was set aside and 6K was searched.

85 parts are printed 6Ka

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.

  • BAP64-06SOT-23PIN diode, 3 pins, NXPPIN diodeSOT-233 pinsNXP
    What it is
    PIN diode
    Maker
    NXP
    Package
    SOT-23
    Pins
    3
    Details
    1 Product profile 2 Pinning information
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: PIN diode or varicap.

  • BAP64W-06SOT-23PIN diode, 3 pins, SeCoSPIN diodeSOT-233 pinsSeCoS
    What it is
    PIN diode
    Maker
    SeCoS
    Package
    SOT-23
    Pins
    3
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: PIN diode or varicap.

  • DTA143ZESOT-416Digital transistor (PNP, resistors built in), 3 pins, onsemiDigital transistor (PNP, resistors built in)SOT-4163 pinsonsemi
    What it is
    Digital transistor (PNP, resistors built in)
    Maker
    onsemi
    Package
    SOT-416
    Pins
    3
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

  • DTA143ZM3SOT-723Digital transistor (PNP, resistors built in), 3 pins, onsemiDigital transistor (PNP, resistors built in)SOT-7233 pinsonsemi
    What it is
    Digital transistor (PNP, resistors built in)
    Maker
    onsemi
    Package
    SOT-723
    Pins
    3
    Details
    Digital Transistors (BRT) R1 = 4.7 k  , R2 = 47 k 
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

  • KIA7034AFSOT-89Voltage supervisor, 3 pins, KECVoltage supervisorSOT-893 pinsKEC
    What it is
    Voltage supervisor
    Maker
    KEC
    Package
    SOT-89
    Pins
    3
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Integrated circuit.

  • LDTA143ZM3T5GSOT-723Digital transistor (PNP, resistors built in), 3 pins, LRCDigital transistor (PNP, resistors built in)SOT-7233 pinsLRC
    What it is
    Digital transistor (PNP, resistors built in)
    Maker
    LRC
    Package
    SOT-723
    Pins
    3
    Details
    Digital transistor (bias resistors built in), PNP, IC 100 mA, VCEO 50 V
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

  • LMUN5133T1GSOT-323Digital transistor (PNP, resistors built in), 3 pins, LRCDigital transistor (PNP, resistors built in)SOT-3233 pinsLRC
    What it is
    Digital transistor (PNP, resistors built in)
    Maker
    LRC
    Package
    SOT-323
    Pins
    3
    Details
    Digital transistor (bias resistors built in), PNP, IC 100 mA, VCEO 50 V
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

  • MM1Z 91SOD-123Zener diode, 2 pins, HottechZener diodeSOD-1232 pinsHottech
    What it is
    Zener diode
    Maker
    Hottech
    Package
    SOD-123
    Pins
    2
    Details
    Zener diode, VZ 91 V
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Zener diode.

  • MM1Z 91LSOD-123FZener diode, 2 pins, HottechZener diodeSOD-123F2 pinsHottech
    What it is
    Zener diode
    Maker
    Hottech
    Package
    SOD-123F
    Pins
    2
    Details
    Zener diode, VZ 91 V
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Zener diode.

  • MMBF4392LSOT-23JFET, 3 pins, onsemiJFETSOT-233 pinsonsemi
    What it is
    JFET
    Maker
    onsemi
    Package
    SOT-23
    Pins
    3
    Details
    JFET Switching Transistors
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: JFET.

  • MUN2133SOT-23Digital transistor (PNP, resistors built in), 3 pins, onsemiDigital transistor (PNP, resistors built in)SOT-233 pinsonsemi
    What it is
    Digital transistor (PNP, resistors built in)
    Maker
    onsemi
    Package
    SOT-23
    Pins
    3
    Details
    Digital Transistors (BRT) R1 = 4.7 k  , R2 = 47 k 
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

  • MUN5133SOT-323Digital transistor (PNP, resistors built in), 3 pins, onsemiDigital transistor (PNP, resistors built in)SOT-3233 pinsonsemi
    What it is
    Digital transistor (PNP, resistors built in)
    Maker
    onsemi
    Package
    SOT-323
    Pins
    3
    Details
    Digital Transistors (BRT) R1 = 4.7 k  , R2 = 47 k 
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

  • 3 more parts have no package on record
    • KIA7034ATVoltage supervisor, KECVoltage supervisorNot recordedNot recordedKEC
      What it is
      Voltage supervisor
      Maker
      KEC
      Package
      Not recorded
      Pins
      Not recorded
      Source
      Manufacturer datasheet

      Is it dead? The meter test is below: Integrated circuit.

    • LDTA143ZET1GDigital transistor (PNP, resistors built in), LRCDigital transistor (PNP, resistors built in)Not recordedNot recordedLRC
      What it is
      Digital transistor (PNP, resistors built in)
      Maker
      LRC
      Package
      Not recorded
      Pins
      Not recorded
      Details
      Digital transistor (bias resistors built in), PNP, IC 100 mA, VCEO 50 V
      Source
      Manufacturer datasheet

      Is it dead? The meter test is below: Digital transistor.

    • S-LDTA143ZET1GDigital transistor (PNP, resistors built in), LRCDigital transistor (PNP, resistors built in)Not recordedNot recordedLRC
      What it is
      Digital transistor (PNP, resistors built in)
      Maker
      LRC
      Package
      Not recorded
      Pins
      Not recorded
      Details
      Digital transistor (bias resistors built in), PNP, IC 100 mA, VCEO 50 V
      Source
      Manufacturer datasheet

      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.

PIN diode or varicap

Diode range, part lifted or one leg off the pad. Red probe on the anode.

Working, it reads

About 0.6 to 0.9 V anode to cathode, and open the other way.

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: failed open.
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 varicap that has drifted in capacitance reads normal on a meter. Only a capacitance meter or the tuning itself shows it.

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.

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.

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.

JFET

Ohms range for drain to source, diode range for the gate, part lifted.

Working, it reads

Drain to source conducts both ways at a few hundred ohms, depending on the part, and some meters beep on it. The gate reads one junction to drain and to source, about 0.6 to 0.7 V, and open the other way.

Dead, it reads

  • The gate the same both ways to drain or source, near 0 V with a continuous beep: gate shorted.
  • Drain to source open: the channel has failed open.
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:
Drain to source resistance varies from part to part. An identical part elsewhere on the board shows what is normal.
Watch for:
A good channel can beep like a short between drain and source. That is normal; the gate junction says whether it has failed.

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 6Ka

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

Codes not listed here are printed on 8 more parts.

Did you find your part?

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