component

SMF30A

Public Made by Adom

by adom

LGE ESD And Surge Protection (TVS/ESD), SOD-123. 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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SMF30A

LGE · ESD And Surge Protection (TVS/ESD) · SOD-123

SMF30A from LGE, in a SOD-123. 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 end of the unidirectional TVS, marked by the color band on the package; 33.30 to 36.80 V breakdown at 1 mA and 30.0 V working peak reverse voltage for SMF30A.
2 A passive Anode end of the unidirectional TVS, opposite the color band; 200 W peak pulse power with a 10/1000 μs waveform.

Key specifications

Parameter Value
Manufacturer LGE
Package SOD-123
Category Circuit Protection
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
Breakdown voltage VBR 33.3 36.8 V IT = 1 mA 2
Maximum reverse leakage current IR 1 uA @VRWM = 30.0 V 2
Maximum reverse surge current IPP 4.13 A 2
Maximum clamping voltage VC 48.4 V @IPP 2
Working peak reverse voltage VRWM 30 V 2
Peak power dissipation, 10/1000 μs waveform PPP 200 W 10/1000μs waveform(1); non-repetitive, derated above TA = 25°C per Fig.1 1
Peak power dissipation, 8/20 μs waveform PPP 1000 W 8/20μs waveform(1) 1
Power dissipation on infinite heatsink PD 0.4 W on infinite heatsink at TL = 75 °C 1
Peak forward surge current, 8.3 ms single half sine-wave, unidirectional only IFSM 20 A 8.3 ms single half sine-wave, unidirectional only; 4 pulses per minute maximum 1
Maximum instantaneous forward voltage, unidirectional only VF 3.5 V at 25 A, unidirectional only 1
Operating junction and storage temperature range TJ, TSTG -55 150 °C 1

CAD (KiCad official)

  • Symbol: SMF30A
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: smf30a-etched.step / smf30a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smf30a.step / smf30a.glb are the bare package body.

Provenance

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

  • Datasheet: LGE datasheet (3 pp, sha256 a2ee85aa52e0a4f6, retrieved 2026-10-17, 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