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SMD code 8810 in DFN

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.

1 part in DFN is printed 8810

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.

  • CMS05NN02A6-HFDFNDual N-channel MOSFET, ComchipDual N-channel MOSFETComchip
    What it is
    Dual N-channel MOSFET
    Maker
    Comchip
    Package
    DFN
    Pins
    Not recorded
    Details
    20 V, 5 A dual N-channel MOSFET
    Source
    Manufacturer datasheet

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

    Datasheetfor CMS05NN02A6-HF, opens in a new tab
  • 2 more parts have no package on record. Nothing rules them out, so they stay.
    • BL8810DF2Dual N-channel MOSFET, Galaxy MicroelectronicsDual N-channel MOSFETGalaxy Microelectronics
      What it is
      Dual N-channel MOSFET
      Maker
      Galaxy Microelectronics
      Package
      Not recorded
      Pins
      Not recorded
      Details
      5A, 20V, 1.13W, Dual MOSFETs
      Source
      Manufacturer datasheet

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

      Datasheetfor BL8810DF2, opens in a new tab
    • LCE3416AN-channel MOSFET, LeiditechN-channel MOSFETLeiditech
      What it is
      N-channel MOSFET
      Maker
      Leiditech
      Package
      Not recorded
      Pins
      Not recorded
      Details
      N-channel MOSFET, 20 V, 7 A
      Source
      Manufacturer datasheet

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

      Datasheetfor LCE3416A, opens in a new tab

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 pair

Diode range, part lifted. Test drain to source first, then short gate to source and test again. Test each MOSFET on its own pins, as the datasheet's pinout gives them.

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.

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.

Printed with a code easy to misread as 8810

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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