component

SM30T12CAY

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.

componenttvs-fuse-board level protectionsm30t12cayfactory-2.0.0extractor-text

Verified SM30T12CAY

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

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SM30T12CAY · SMC(DO-214AB) · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • ✓distributor: lcsc C3713590, digikey 497-15400-2-ND, mouser 511-SM30T12CAY
  • ✓family: D_SMC
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-k96cb672/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ sm30t12cay.kicad_sym✓ sm30t12cay.kicad_mod✓ sm30t12cay.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
sm30t12cay / README.md
History Download
Ray Publish 0.1.0 7dc4c32 10d ago

SM30T12CAY

STMicroelectronics · TVS · SMC(DO-214AB)

SM30T12CAY 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 1 passive Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SMC(DO-214AB)
Category TVS/Fuse/Board Level 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, 25 °C 3
Reverse leakage current at VRM, 85 °C IRM 1 µA at VRM, 85 °C 3
Breakdown voltage VBR 11.4 12 12.6 V at IBR = 1 mA 3
Clamping voltage, 10/1000 µs VCL 17 V 10/1000 µs, IPP = 176 A 3
Peak pulse current, 10/1000 µs IPP 176 A 10/1000 µs 3
Dynamic resistance, 10/1000 µs RD 25 mΩ 10/1000 µs 3
Clamping voltage, 8/20 µs VCL 21.7 V 8/20 µs, IPP = 1170 A 3
Peak pulse current, 8/20 µs IPP 1170 A 8/20 µs 3
Dynamic resistance, 8/20 µs RD 7.78 mΩ 8/20 µs 3
Temperature coefficient of VBR αT 7.8 10-4/°C 3
Reverse stand-off voltage VRM 10 V 3
Peak pulse power dissipation PPP 3000 W Tj initial = Tamb 2
Peak pulse voltage, ISO10605 (C = 330 pF, R = 330 Ω), contact discharge VPP -30 30 kV ISO10605 (C = 330 pF, R = 330 Ω), contact discharge 2
Peak pulse voltage, ISO10605 (C = 330 pF, R = 330 Ω), air discharge VPP -30 30 kV ISO10605 (C = 330 pF, R = 330 Ω), air discharge 2
Peak pulse voltage, ISO10605 / IEC 61000-4-2 (C = 150 pF, R = 330 Ω), contact discharge VPP -30 30 kV ISO10605 / IEC 61000-4-2 (C = 150 pF, R = 330 Ω), contact discharge 2
Peak pulse voltage, ISO10605 / IEC 61000-4-2 (C = 150 pF, R = 330 Ω), air discharge VPP -30 30 kV ISO10605 / IEC 61000-4-2 (C = 150 pF, R = 330 Ω), air discharge 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: SM30T12CAY
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (16 pp, sha256 f6d47dc33b5be94c, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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