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BUZ21-VB

VBsemi Elec · MOSFETs · TO-220AB

BUZ21-VB from VBsemi Elec, in a TO-220AB. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 G input Gate is the control input, with gate-source voltage VGS limited to ±20 V.
2 D passive Drain is rated for a drain-source voltage VDS of 100 V and a continuous drain current ID of 18 A at TC = 25 °C.
3 S passive Source is the reference terminal for VGS, with continuous source-drain diode current IS rated at 18 A.

Key specifications

Parameter Value
Manufacturer VBsemi Elec
Package TO-220AB
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BUZ21-VB
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220AB (KiCad packages3D, STEP)
  • 3D model files: buz21-vb-etched.step / buz21-vb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); buz21-vb.step / buz21-vb.glb are the bare package body.

Provenance

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

  • Datasheet: VBsemi Elec datasheet (7 pp, sha256 ab7d77ce184bacc0, retrieved 2026-10-28, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF