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BYG21M-E3-FS

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FUXINSEMI Fast Recovery / High Efficiency Diodes, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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BYG21M-E3-FS

FUXINSEMI · Fast Recovery / High Efficiency Diodes · SMA(DO-214AC)

BYG21M-E3-FS from FUXINSEMI, in a SMA(DO-214AC). 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 cathode passive Cathode end, marked by the color band on the package; the device is rated for a maximum repetitive peak reverse voltage of 1000 V and an average forward current of 1.5 A.
2 anode passive Anode end, opposite the color band; forward current flows from this pin to the cathode (pin 1), with a 30 A peak forward surge current rating for 10 ms single half sine-wave.

Key specifications

Parameter Value
Manufacturer FUXINSEMI
Package SMA(DO-214AC)
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: BYG21M-E3-FS
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: byg21m-e3-fs-etched.step / byg21m-e3-fs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); byg21m-e3-fs.step / byg21m-e3-fs.glb are the bare package body.

Provenance

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

  • Datasheet: FUXINSEMI datasheet (4 pp, sha256 30af94c2f4f7bd68, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (vision), consensus claude-opus-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