component

SMF4731A

Public Made by Adom

by adom

ZHIDE Zener Diodes, SOD-123FL. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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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smf4731a-etched.step smf4731a: factory component page (tier=lcsc) · Ray 10d ago
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SMF4731A

ZHIDE · Zener Diodes · SOD-123FL

SMF4731A from ZHIDE, in a SOD-123FL. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer ZHIDE
Package SOD-123FL
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Zener voltage (nominal VZ AVE, min and max) VZ 4.09 4.3 4.52 V @ IZT = 58.0 mA 3
Zener impedance (ZZT max) ZZT 9 Ω @ IZT = 58.0 mA 3
Zener impedance at knee (ZZK max) ZZK 400 Ω @ IZK = 1.00 mA 3
Maximum reverse leakage current (IR max) IR 10 µA @ VR = 1.0 V 3
Maximum zener current (IZM) IZM 210 mA 3
Maximum forward voltage VF 1.2 V if=200mA 1
DC power dissipation PD 1 W TL = 75 °C (lead temperature at 3/8'' (9.5mm) from body, note 1) 1
Junction temperature range TJ -55 150 ℃ 1
Storage temperature range TSTG -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: SMF4731A
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: smf4731a-etched.step / smf4731a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smf4731a.step / smf4731a.glb are the bare package body.

Provenance

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

  • Datasheet: ZHIDE datasheet (3 pp, sha256 c1c1f3bc25a0feef, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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