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Contents

README

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FDS8840NZ-VB

VBsemi Elec · MOSFETs · SO-8

FDS8840NZ-VB from VBsemi Elec, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 S passive Source (S) of the N-channel MOSFET. Pins 1, 2, and 3 are internally connected together as the source terminal; carries the load current back to the return path (up to 18 A continuous at TC = 25 °C).
2 S passive Source (S) of the N-channel MOSFET. Tied in parallel with pins 1 and 3 to reduce package resistance and improve current handling.
3 S passive Source (S) of the N-channel MOSFET. Tied in parallel with pins 1 and 2; connect all three source pins together on the PCB.
4 G input Gate (G) of the N-channel MOSFET. High-impedance control input; VGS(th) = 1.0 to 3.0 V, absolute maximum VGS = ±20 V. Drive with 4.5 V or 10 V for full enhancement.
5 D passive Drain (D) of the N-channel MOSFET. Pins 5, 6, 7, and 8 are internally connected together as the drain terminal; VDS max = 40 V.
6 D passive Drain (D) of the N-channel MOSFET. Tied in parallel with pins 5, 7, and 8 to reduce package resistance and improve thermal performance (drain acts as the primary heat-sinking terminal).
7 D passive Drain (D) of the N-channel MOSFET. Tied in parallel with pins 5, 6, and 8; connect all four drain pins together on the PCB with a large copper pour for heat spreading.
8 D passive Drain (D) of the N-channel MOSFET. Tied in parallel with pins 5, 6, and 7 to share the drain current (ID up to 18 A continuous at TC = 25 °C).

Key specifications

Parameter Value
Manufacturer VBsemi Elec
Package SO-8
Category Transistors/Thyristors
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • FDS8840NZ-VB

CAD (KiCad official)

  • Symbol: FDS8840NZ-VB
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SO-8 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: VBsemi Elec datasheet (None pp, sha256 da6bb2f6e17cb1ec, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF