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SMD code TS2

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.

14 parts are printed TS2

Not sure which one you have?

Answer up to 4 quick questions and these 14 parts are ranked, with a meter test that settles it. It works on a dead part too.

  • ACE7402ASOT-323N-channel MOSFET, 3 pins, HXYN-channel MOSFETSOT-3233 pinsHXY
    What it is
    N-channel MOSFET
    Maker
    HXY
    Package
    SOT-323
    Pins
    3
    Details
    N-channel MOSFET, 20 V, 2 A
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: N-channel MOSFET.

  • AP1334GEUSOT-323N-channel MOSFET, 3 pins, HXYN-channel MOSFETSOT-3233 pinsHXY
    What it is
    N-channel MOSFET
    Maker
    HXY
    Package
    SOT-323
    Pins
    3
    Details
    N-channel MOSFET, 20 V, 2 A
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: N-channel MOSFET.

  • GSFKW0202SOT-323N-channel MOSFET, 3 pins, Good-ArkN-channel MOSFETSOT-3233 pinsGood-Ark
    What it is
    N-channel MOSFET
    Maker
    Good-Ark
    Package
    SOT-323
    Pins
    3
    Details
    N-channel MOSFET, 20 V
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: N-channel MOSFET.

  • HSI2102ASOT-323N-channel MOSFET, 3 pins, HXYN-channel MOSFETSOT-3233 pinsHXY
    What it is
    N-channel MOSFET
    Maker
    HXY
    Package
    SOT-323
    Pins
    3
    Details
    N-channel MOSFET, 20 V, 2 A
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: N-channel MOSFET.

  • HXY2102EISOT-323N-channel MOSFET, 3 pins, HXYN-channel MOSFETSOT-3233 pinsHXY
    What it is
    N-channel MOSFET
    Maker
    HXY
    Package
    SOT-323
    Pins
    3
    Details
    N-channel MOSFET, 20 V, 2 A
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: N-channel MOSFET.

  • SI2102ASOT-323N-channel MOSFET, 3 pins, HXYN-channel MOSFETSOT-3233 pinsHXY
    What it is
    N-channel MOSFET
    Maker
    HXY
    Package
    SOT-323
    Pins
    3
    Details
    N-channel MOSFET, 20 V, 2 A
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: N-channel MOSFET.

  • SSF2102-CSOT-323MOSFET, 3 pins, SeCoSMOSFETSOT-3233 pinsSeCoS
    What it is
    MOSFET
    Maker
    SeCoS
    Package
    SOT-323
    Pins
    3
    Source
    Manufacturer datasheet

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

  • SSF2102Y-CSOT-323MOSFET, 3 pins, SeCoSMOSFETSOT-3233 pinsSeCoS
    What it is
    MOSFET
    Maker
    SeCoS
    Package
    SOT-323
    Pins
    3
    Source
    Manufacturer datasheet

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

  • WM02N20GSOT-3233 pins, WayonNot recordedSOT-3233 pinsWayon
    What it is
    Not recorded
    Maker
    Wayon
    Package
    SOT-323
    Pins
    3
    Details
    MOSFET
    Source
    Manufacturer datasheet

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

  • BZX84-B3V3SOT-23Zener diode, 3 pins, NXPZener diodeSOT-233 pinsNXP
    What it is
    Zener diode
    Maker
    NXP
    Package
    SOT-23
    Pins
    3
    Details
    3.3 V ±2% voltage regulator (Zener) diode
    Source
    Published code list

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

  • BZX84-B3V6SOT-23Zener diode, 3 pins, NexperiaZener diodeSOT-233 pinsNexperia
    What it is
    Zener diode
    Maker
    Nexperia
    Package
    SOT-23
    Pins
    3
    Details
    3.6 V ±2% voltage regulator (Zener) diode
    Source
    An older or alternative marking, from a published code list

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

  • 3 more parts have no package on record
    • LM2102WN-channel MOSFET, LeiditechN-channel MOSFETNot recordedNot recordedLeiditech
      What it is
      N-channel MOSFET
      Maker
      Leiditech
      Package
      Not recorded
      Pins
      Not recorded
      Details
      N-channel MOSFET, 20 V, 2.5 A
      Source
      Manufacturer datasheet

      Is it dead? The meter test is below: N-channel MOSFET.

    • NTS0102TLLogic level translator, 8 pins, NXPLogic level translatorNot recorded8 pinsNXP
      What it is
      Logic level translator
      Maker
      NXP
      Package
      Not recorded
      Pins
      8
      Details
      1 General description 2 Features and benefits 3 Applications 4 Ordering information
      Source
      Manufacturer datasheet

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

    • NTS0102TL-Q100Logic level translator, 8 pins, NXPLogic level translatorNot recorded8 pinsNXP
      What it is
      Logic level translator
      Maker
      NXP
      Package
      Not recorded
      Pins
      8
      Details
      1 General description 2 Features and benefits 3 Applications
      Source
      Manufacturer datasheet

      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.

N-channel MOSFET

Diode range, part lifted. Test drain to source first, then short gate to source and test again.

Working, it reads

Red probe on the source, black on the drain: about 0.4 to 0.9 V, the body diode. Open the other way. The gate reads open to both other pins, both ways.

Dead, it reads

  • Drain to source the same both ways, near 0 V with a continuous beep, and still so after shorting gate to source: shorted. The classic failure.
  • The gate reads low to source or drain: gate shorted. Often all three pins end up shorted together.
  • No body diode at all: failed open.
On the board
the gate usually has a resistor to the source, so gate to source reads that resistor, which is not a fault. A drain short can be the load. Lift a leg to be sure.
Compare:
If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
Watch for:
The diode range can charge the gate enough to turn the part on, and then drain to source reads near 0 both ways on a good part. Short gate to source and test again before you condemn it.

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.

MOSFET

Diode range, part lifted. Test drain to source first, then short gate to source and test again.

Working, it reads

One way between drain and source reads about 0.4 to 0.9 V, the body diode, and the other way open. The gate reads open to both other pins.

Dead, it reads

  • Drain to source the same both ways, near 0 V with a continuous beep, and still so after shorting gate to source: shorted. The classic failure.
  • The gate reads low to source or drain: gate shorted.
  • No body diode at all: failed open.
On the board
the gate usually has a resistor to the source, which reads as that resistor and is not a fault. Lift a leg to be sure.
Compare:
If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
Watch for:
The diode range can charge the gate enough to turn the part on, and then drain to source reads near 0 both ways on a good part. Short gate to source and test again before you condemn it.

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 TS2

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 TS2

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

Codes not listed here are printed on 74 more parts.

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