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SMD code P86

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.

P86 on a chip capacitor

0.86 pF

0.86 pF capacitor

The p is both the decimal point and the unit: 0.86 pF.

Check it with a meter

Lift one end and measure it on a capacitance range. A good one reads close to 0.86 pF. In circuit the meter also sees everything connected across it, so the reading means little until it is out. A failed one usually reads near 0 Ω, or a steady low resistance, on the ohms range, often from a crack. On the board a shorted capacitor shorts its whole rail. A failed reading does not change what to fit: the marking still says 0.86 pF.

On a transistor or diode body (SOT-23-5, SOT-23, SOT-89), P86 is a part code instead. Those parts are listed below.

16 parts are printed P86

Not sure which one you have?

Answer up to 4 quick questions and these 16 parts are ranked, with a meter test that settles it. It works on a dead part too.

  • 2SB1386GPSOT-89PNP transistor, 3 pins, ChenmkoPNP transistorSOT-893 pinsChenmko
    What it is
    PNP transistor
    Maker
    Chenmko
    Package
    SOT-89
    Pins
    3
    Details
    PNP Epitaxial Transistor, 20 V, 5 A
    Source
    Manufacturer datasheet

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

  • NC7SP86P5SOT-23-5Logic gate, 5 pins, onsemiLogic gateSOT-23-55 pinsonsemi
    What it is
    Logic gate
    Maker
    onsemi
    Package
    SOT-23-5
    Pins
    5
    Details
    TinyLogic ULP-A Exclusive-OR Gate
    Source
    Manufacturer datasheet

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

  • 2SB1386PT-PSOT-89PNP transistor, 3 pins, Chenmko EnterprisePNP transistorSOT-893 pinsChenmko Enterprise
    What it is
    PNP transistor
    Maker
    Chenmko Enterprise
    Package
    SOT-89
    Pins
    3
    Details
    PNP transistor: AF, Sw, 20V, 5A, B=82..180, 120MHz
    Source
    Published code list

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

  • BZX84-A75SOT-23Zener diode, 3 pins, NXPZener diodeSOT-233 pinsNXP
    What it is
    Zener diode
    Maker
    NXP
    Package
    SOT-23
    Pins
    3
    Details
    75 V ±1% voltage regulator (Zener) diode
    Source
    Published code list

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

  • LN61FN4842MSOT-23Voltage supervisor, 3 pins, Shanghai Natlinear ElectronicsVoltage supervisorSOT-233 pinsShanghai Natlinear Electronics
    What it is
    Voltage supervisor
    Maker
    Shanghai Natlinear Electronics
    Package
    SOT-23
    Pins
    3
    Details
    Voltage detector IC: 4.8V±2%, +Reset ODO, Rdt=400ms
    Source
    Published code list

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

  • LN61FN4842PSOT-89Voltage supervisor, 3 pins, Shanghai Natlinear ElectronicsVoltage supervisorSOT-893 pinsShanghai Natlinear Electronics
    What it is
    Voltage supervisor
    Maker
    Shanghai Natlinear Electronics
    Package
    SOT-89
    Pins
    3
    Details
    Voltage detector IC: 4.8V±2%, +Reset ODO, 400ms Rt delay
    Source
    Published code list

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

  • NC7SP86PSOT-3535 pins, Fairchild SemiconductorNot recordedSOT-3535 pinsFairchild Semiconductor
    What it is
    Not recorded
    Maker
    Fairchild Semiconductor
    Package
    SOT-353
    Pins
    5
    Details
    CMOS logic IC: 2-input EXCLUSIVE-OR gate
    Source
    Published code list

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

  • U74AUP1G86G-AE5SOT-23-55 pins, UnisonicNot recordedSOT-23-55 pinsUnisonic
    What it is
    Not recorded
    Maker
    Unisonic
    Package
    SOT-23-5
    Pins
    5
    Details
    CMOS logic IC: 2-input EXCLUSIVE-OR gate, H-free
    Source
    Published code list

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

  • U74AUP1G86G-AL5SOT-3535 pins, UnisonicNot recordedSOT-3535 pinsUnisonic
    What it is
    Not recorded
    Maker
    Unisonic
    Package
    SOT-353
    Pins
    5
    Details
    CMOS logic IC: 2-input EXCLUSIVE-OR gate, H-free
    Source
    Published code list

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

  • XC61FN4842MSOT-23Voltage supervisor, 3 pins, TorexVoltage supervisorSOT-233 pinsTorex
    What it is
    Voltage supervisor
    Maker
    Torex
    Package
    SOT-23
    Pins
    3
    Details
    CMOS-IC: Voltage Detector 4,8V, Reset Open drain output, 400ms
    Source
    Published code list

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

  • XC61FN4842PSOT-89Voltage supervisor, 3 pins, TorexVoltage supervisorSOT-893 pinsTorex
    What it is
    Voltage supervisor
    Maker
    Torex
    Package
    SOT-89
    Pins
    3
    Details
    CMOS-IC: Voltage Detector 4,8V, Reset Open drain output, 400ms
    Source
    Published code list

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

  • 4 more parts have no package on record
    • 74AUP2G86DCNXPNot recordedNot recordedNot recordedNXP
      What it is
      Not recorded
      Maker
      NXP
      Package
      Not recorded
      Pins
      Not recorded
      Details
      CMOS logic IC: Dual 2-input EXCLUSIVE-OR gate
      Source
      Published code list

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

    • 74AUP2G86GDNXPNot recordedNot recordedNot recordedNXP
      What it is
      Not recorded
      Maker
      NXP
      Package
      Not recorded
      Pins
      Not recorded
      Details
      CMOS logic IC: Dual 2-input EXCLUSIVE-OR gate
      Source
      Published code list

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

    • 74AUP2G86GMNXPNot recordedNot recordedNot recordedNXP
      What it is
      Not recorded
      Maker
      NXP
      Package
      Not recorded
      Pins
      Not recorded
      Details
      CMOS logic IC: Dual 2-input EXCLUSIVE-OR gate
      Source
      Published code list

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

    • 74AUP2G86GTNXPNot recordedNot recordedNot recordedNXP
      What it is
      Not recorded
      Maker
      NXP
      Package
      Not recorded
      Pins
      Not recorded
      Details
      CMOS logic IC: Dual 2-input EXCLUSIVE-OR gate
      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.

PNP transistor

Diode range, part lifted or its base leg off the pad.

Working, it reads

Black 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.

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.

Printed with a code easy to misread as P86

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 P86

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.