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Contents

README

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1N4743APF-M

ST Semtech · Zener Diodes · DO-41

1N4743APF-M from ST Semtech, in a DO-41. 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 K passive Cathode, the lead at the black cathode-band end of the DO-41 glass case; the 13 V Zener (12.35 to 13.65 V at IZT = 19 mA) is reverse-biased with this lead positive.
2 A passive Anode, the lead at the end opposite the cathode band; forward voltage is max 1.2 V at IF = 200 mA.

Key specifications

Parameter Value
Manufacturer ST Semtech
Package DO-41
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: 1N4743APF-M
  • Footprint: Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal
  • 3D model: DO-41 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: ST Semtech datasheet (3 pp, sha256 75f805f187583a3f, retrieved 2026-10-13, 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