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SMD code 8205

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.

8205 on a chip resistor

82 MΩ

82 MΩ resistor, 1%

820 followed by 5 zeros. Four digits is normally the 1% series.

Check it with a meter

Lift one end and measure across it. A good one reads 82 MΩ within 1%. Measuring it in circuit reads the parallel combination of everything around it, which is almost always lower, never higher: well above 82 MΩ on the board is a fault. Open, or well above 82 MΩ, means it has failed: burnt, cracked or corroded. That does not change what to fit: the marking still says 82 MΩ. A burnt resistor usually means the part it feeds drew too much, so find that before fitting a new one.

On a transistor or diode body (SOT-23-6, TSSOP-8, QFN), 8205 is a part code instead. Those parts are listed below.

8 parts are printed 8205

Not sure which one you have?

Answer up to 4 quick questions and these 8 parts are ranked, with a meter test that settles it. It works on a dead part too.

  • 8205A-HXYSOT-23-6Dual N-channel MOSFET, 6 pins, HXYDual N-channel MOSFETSOT-23-66 pinsHXY
    What it is
    Dual N-channel MOSFET
    Maker
    HXY
    Package
    SOT-23-6
    Pins
    6
    Details
    Dual N-channel MOSFET, 20 V, 6 A
    Source
    Manufacturer datasheet

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

    Datasheetfor 8205A-HXY, opens in a new tab
  • AO8205TSSOP-8Dual N-channel MOSFET, 8 pins, HottechDual N-channel MOSFETTSSOP-88 pinsHottech
    What it is
    Dual N-channel MOSFET
    Maker
    Hottech
    Package
    TSSOP-8
    Pins
    8
    Source
    Manufacturer datasheet

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

    Datasheetfor AO8205, opens in a new tab
  • BR8205SOT-23-6Dual N-channel MOSFET, 6 pins, Blue RocketDual N-channel MOSFETSOT-23-66 pinsBlue Rocket
    What it is
    Dual N-channel MOSFET
    Maker
    Blue Rocket
    Package
    SOT-23-6
    Pins
    6
    Source
    Manufacturer datasheet

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

    Datasheetfor BR8205, opens in a new tab
  • FMOSL8205BSOT-23-6Dual N-channel MOSFET, 6 pins, Formosa MicrosemiDual N-channel MOSFETSOT-23-66 pinsFormosa Microsemi
    What it is
    Dual N-channel MOSFET
    Maker
    Formosa Microsemi
    Package
    SOT-23-6
    Pins
    6
    Source
    Manufacturer datasheet

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

    Datasheetfor FMOSL8205B, opens in a new tab
  • HXY8205LISOT-23-6Dual N-channel MOSFET, 6 pins, HXYDual N-channel MOSFETSOT-23-66 pinsHXY
    What it is
    Dual N-channel MOSFET
    Maker
    HXY
    Package
    SOT-23-6
    Pins
    6
    Details
    Dual N-channel MOSFET, 20 V, 6 A
    Source
    Manufacturer datasheet

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

    Datasheetfor HXY8205LI, opens in a new tab
  • WM02DN50M3SOT-23-66 pins, WayonNot recordedSOT-23-66 pinsWayon
    What it is
    Not recorded
    Maker
    Wayon
    Package
    SOT-23-6
    Pins
    6
    Details
    MOSFET
    Source
    Manufacturer datasheet

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

    Datasheetfor WM02DN50M3, opens in a new tab
  • MTDN8205KG6SOT-23-6Dual N-channel MOSFET, 6 pins, CYStekDual N-channel MOSFETSOT-23-66 pinsCYStek
    What it is
    Dual N-channel MOSFET
    Maker
    CYStek
    Package
    SOT-23-6
    Pins
    6
    Details
    20 V, 3.9 A dual N-channel MOSFET
    Source
    Manufacturer datasheet

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

    Datasheetfor MTDN8205KG6, opens in a new tab
  • NCE8205SOT-23-6N-channel MOSFET, 6 pins, Wuxi NCE PowerN-channel MOSFETSOT-23-66 pinsWuxi NCE Power
    What it is
    N-channel MOSFET
    Maker
    Wuxi NCE Power
    Package
    SOT-23-6
    Pins
    6
    Details
    MOSFET n-type: Dual, Sw, 20V, 6A, 1.5W, 17m(4.5A), 10/35ns
    Source
    Published code list

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

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.

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.

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.

Codes that begin with 8205

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.