component
SMC30J12A
Public Made by Adomby adom
STMicroelectronics TVS, SMC. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 15d ago |
| viewers | 2d ago |
| package.json | 15d ago |
| page.json | 15d ago |
| README.md | 15d ago |
| smc30j12a-etched.glb | 15d ago |
| smc30j12a-etched.step | 15d ago |
| smc30j12a-hero.glb | 15d ago |
| smc30j12a-hero.overlay.json | 15d ago |
| smc30j12a.glb | 15d ago |
| smc30j12a.kicad_mod | 15d ago |
| smc30j12a.kicad_sym | 2d ago |
| smc30j12a.lbr | 2d ago |
| smc30j12a.step | 15d ago |
SMC30J12A
STMicroelectronics · TVS · SMC
SMC30J12A from STMicroelectronics, in a SMC. 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 | STMicroelectronics |
| Package | SMC |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse leakage current | IRM | 0.2 | µA | at VRM | 3 | ||
| Breakdown voltage | VBR | 13.3 | 14 | V | at IR = 1 mA | 3 | |
| Clamping voltage 10/1000 µs | VCL | 19.9 | V | 10/1000 µs | 3 | ||
| Peak pulse current 10/1000 µs | IPP | 151 | A | 10/1000 µs | 3 | ||
| Dynamic resistance 10/1000 µs | RD | 0.039 | Ω | 10/1000 µs | 3 | ||
| Clamping voltage 8/20 µs | VCL | 25.3 | V | 8/20 µs | 3 | ||
| Peak pulse current 8/20 µs | IPP | 1045 | A | 8/20 µs | 3 | ||
| Dynamic resistance 8/20 µs | RD | 0.011 | Ω | 8/20 µs | 3 | ||
| Storage temperature range | Tstg | -65 | 175 | °C | 2 | ||
| Operating junction temperature range | Tj | -55 | 175 | °C | 2 | ||
| Peak pulse power dissipation | PPP | 3000 | W | Tj initial = Tamb | 2 | ||
| Peak pulse voltage, IEC 61000-4-2 contact discharge | VPP | 30 | kV | C = 150 pF, R = 330 Ω | 2 | ||
| Peak pulse voltage, IEC 61000-4-2 air discharge | VPP | 30 | kV | C = 150 pF, R = 330 Ω | 2 | ||
| Maximum lead temperature for soldering | TL | 260 | °C | during 10 s | 2 | ||
| Stand-off voltage | VRM | 12 | V | 3 | |||
| Voltage temperature coefficient | αT | 8.3 | 10-4/°C | Max | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | • Lead finishing: matte tin plating Complies with the following standards | 1 |
CAD (KiCad official)
- Symbol:
SMC30J12A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC (KiCad packages3D, STEP)
- 3D model files:
smc30j12a-etched.step/smc30j12a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smc30j12a.step/smc30j12a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (13 pp, sha256
e16750bc0aa9528c, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).