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Contents

README

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BAT54WFILMY

STMicroelectronics · Schottky Diodes · SOT-323

BAT54WFILMY from STMicroelectronics, in a SOT-323. 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 A passive Anode of the single 40 V Schottky diode (bottom-left pin in the top-view symbol); continuous forward current up to 300 mA.
2 NC unconnected Not connected internally; the bottom-right pin in the single-diode top-view symbol has no connection to the diode.
3 K passive Cathode of the single Schottky diode (top pin in the top-view symbol); repetitive peak reverse voltage 40 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-323
Category Diodes
Pins 3

CAD (KiCad official)

  • Symbol: BAT54WFILMY
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: bat54wfilmy-etched.step / bat54wfilmy-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bat54wfilmy.step / bat54wfilmy.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (11 pp, sha256 e2f21edc30e85ada, retrieved 2026-10-01, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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