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SMF4737A

ZHIDE · Zener Diodes · SOD-123FL

SMF4737A 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) VZ 7.13 7.5 7.88 V IZT = 34.0 mA 3
Maximum zener impedance ZZT 4 Ω @ IZT = 34.0 mA 3
Maximum zener impedance at knee ZZK 700 Ω @ IZK = 0.50 mA 3
Maximum reverse leakage current IR 10 uA @ VR = 5.0 V 3
Maximum DC zener current IZM 121 mA 3
DC power dissipation PD 1 W TL = 75 °C 1
Maximum forward voltage VF 1.2 V IF = 200 mA 1
Junction temperature range TJ,TSTG -55 150 ℃ 1
Storage temperature range TJ,TSTG -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: SMF4737A
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: smf4737a-etched.step / smf4737a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smf4737a.step / smf4737a.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