component

SMC30J40CA

Public Made by Adom

by adom

STMicroelectronics TVS, SMC(DO-214AB). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcircuit protectionsmc30j40cafactory-2.0.0extractor-text

Changed since verified SMC30J40CA

by Ray · last 30 Oct 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 2 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SMC30J40CA · SMC(DO-214AB) · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 12-page datasheet
  • ✓distributor: lcsc C1975854, digikey 497-16102-2-ND, mouser 511-SMC30J40CA
  • ✓family: D_SMC
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-vhy72nx0/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.6)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! smc30j40ca.kicad_sym✓ smc30j40ca.kicad_mod✓ smc30j40ca.step
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 7d ago
viewers smc30j40ca: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
package.json Publish 0.1.0 · Ray 7d ago
page.json Set visibility: public · Ray 7d ago
README.md Publish 0.1.0 · Ray 7d ago
smc30j40ca-etched.glb Publish 0.1.0 · Ray 7d ago
smc30j40ca-etched.step smc30j40ca: factory component page (tier=mfr) · Ray 7d ago
smc30j40ca-hero.glb smc30j40ca: hero GLB from the etched model (keeps the MPN mark) · Ray 7d ago
smc30j40ca-hero.overlay.json Publish 0.1.0 · Ray 7d ago
smc30j40ca.glb Publish 0.1.0 · Ray 7d ago
smc30j40ca.kicad_mod Publish 0.1.0 · Ray 7d ago
smc30j40ca.kicad_sym smc30j40ca: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smc30j40ca.lbr smc30j40ca: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smc30j40ca.step Publish 0.1.0 · Ray 7d ago
verification.json Verified: Published by the parts factory: tier mfr, 2 pins · Ray 7d ago

SMC30J40CA

STMicroelectronics · TVS · SMC(DO-214AB)

SMC30J40CA from STMicroelectronics, in a SMC(DO-214AB). 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(DO-214AB)
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 at VRM, 25 °C IRM 0.2 µA at VRM = 40 V, 25 °C 3
Reverse leakage current at VRM, 85 °C IRM 1 µA at VRM = 40 V, 85 °C 3
Breakdown voltage VBR 44.4 49 V at IBR = 1 mA; Tamb = 25 °C 3
Clamping voltage, 10/1000 µs VCL 64.5 V 10/1000 µs waveform 3
Peak pulse current, 10/1000 µs IPP 43.5 A 10/1000 µs waveform 3
Dynamic resistance, 10/1000 µs RD 356 mΩ 10/1000 µs waveform 3
Clamping voltage, 8/20 µs VCL 84 V 8/20 µs waveform 3
Peak pulse current, 8/20 µs IPP 469 A 8/20 µs waveform 3
Dynamic resistance, 8/20 µs RD 74.6 mΩ 8/20 µs waveform 3
Breakdown voltage VBR 46.7 V at IBR = 1 mA; Tamb = 25 °C 3
VBR temperature coefficient (αT) αT 10.1 10-4/°C 3
Peak pulse voltage, IEC 61000-4-2 contact discharge VPP -30 30 kV IEC 61000-4-2 (C = 150 pF, R = 330 Ω), contact discharge 2
Peak pulse voltage, IEC 61000-4-2 air discharge VPP -30 30 kV IEC 61000-4-2 (C = 150 pF, R = 330 Ω), air discharge 2
Peak pulse power dissipation PPP 3000 W Tj initial = Tamb 2
Storage temperature range Tstg -65 175 °C 2
Operating junction temperature range Tj -55 175 °C 2
Maximum lead temperature for soldering TL 260 °C during 10 s 2

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: SMC30J40CA
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
  • 3D model files: smc30j40ca-etched.step / smc30j40ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smc30j40ca.step / smc30j40ca.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (12 pp, sha256 50a6114d0378ebfe, retrieved 2026-10-30, tier: manufacturer)
  • 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