component

SM15T56CAY

Public Made by Adom

by 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.

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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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package.json Publish 0.1.0 · Ray 9d ago
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README.md Publish 0.1.0 · Ray 9d ago
sm15t56cay-etched.glb Publish 0.1.0 · Ray 9d ago
sm15t56cay-etched.step sm15t56cay: factory component page (tier=mfr) · Ray 9d ago
sm15t56cay-hero.glb sm15t56cay: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
sm15t56cay-hero.overlay.json Publish 0.1.0 · Ray 9d ago
sm15t56cay.glb Publish 0.1.0 · Ray 9d ago
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SM15T56CAY

STMicroelectronics · TVS · SMC

SM15T56CAY 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
Peak pulse voltage ISO 10605 contact discharge (C=330 pF, R=330 Ω) VPP 30 kV ISO 10605 C=330 pF, R=330 Ω, contact discharge 2
Peak pulse voltage ISO 10605 air discharge (C=330 pF, R=330 Ω) VPP 30 kV ISO 10605 C=330 pF, R=330 Ω, air discharge 2
Peak pulse voltage ISO 10605 contact discharge (C=150 pF, R=330 Ω) VPP 30 kV ISO 10605 C=150 pF, R=330 Ω, contact discharge 2
Peak pulse voltage ISO 10605 air discharge (C=150 pF, R=330 Ω) VPP 30 kV ISO 10605 C=150 pF, R=330 Ω, air discharge 2
Peak pulse power dissipation PPP 1500 W Tj initial = Tamb, 10/1000 µs 2
Storage temperature range Tstg -65 150 °C 2
Operating junction temperature range Tj -40 150 °C 2
Maximum lead temperature for soldering TL 260 °C during 10 s 2
Leakage current at VRM, 25 °C IRM 0.2 µA VRM = 48 V, Tamb = 25 °C 3
Leakage current at VRM, 85 °C IRM 1 µA VRM = 48 V, 85 °C 3
Stand-off voltage VRM 48 V 3
Breakdown voltage VBR 53.3 56 58.9 V @ IR = 1 mA, pulse test tp < 50 ms 3
Clamping voltage 10/1000 µs VCL 77.4 V @ IPP = 20 A, 10/1000 µs 3
Dynamic resistance 10/1000 µs RD 0.925 Ω 10/1000 µs 3
Clamping voltage 8/20 µs VCL 100 V @ IPP = 100 A, 8/20 µs 3
Dynamic resistance 8/20 µs RD 0.411 Ω 8/20 µs 3
Voltage temperature coefficient αT 10.3 10-4/°C 3

CAD (KiCad official)

  • Symbol: SM15T56CAY
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC (KiCad packages3D, STEP)
  • 3D model files: sm15t56cay-etched.step / sm15t56cay-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm15t56cay.step / sm15t56cay.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (12 pp, sha256 c929f08172c291d2, retrieved 2026-10-22, 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