component
SMFJ30A
Public Made by Adomby adom
TECH PUBLIC ESD And Surge Protection (TVS/ESD), SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSMFJ30A
TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SOD-123
SMFJ30A from TECH PUBLIC, 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 (marked by the band on the package) of the unipolar TVS, connected to the protected line, with 30 V reverse stand-off, 33.3 to 36.8 V breakdown at 1 mA and 48.4 V maximum clamping at 4.1 A. |
| 2 | A | passive | Anode of the unipolar TVS, normally connected to ground/return, with 200 W peak pulse power (10/1000 µs) and 1000 W (8/20 µs). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOD-123 |
| Category | Circuit Protection |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
SMFJ30A - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
smfj30a-etched.step/smfj30a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smfj30a.step/smfj30a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (4 pp, sha256
cff1d8a3b505f6ee, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-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).