component

SM5908

Public Made by Adom

by adom

STMicroelectronics TVS, SMC. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcircuit protectionsm5908factory-2.0.0extractor-text

Changed since verified SM5908

by Ray · last 31 Oct 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

31 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: SM5908 · SMC · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 9-page datasheet
  • ✓distributor: lcsc C1847683, digikey 497-6489-2-ND, mouser 511-SM5908
  • ✓family: D_SMC
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-43xnd8gk/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! sm5908.kicad_sym✓ sm5908.kicad_mod✓ sm5908.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

SM5908

STMicroelectronics · TVS · SMC

SM5908 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 of the unidirectional Transil, marked by the cathode bar on the package; connects to the protected line (positive side), with 5 V stand-off voltage (VRM) and 6 V min breakdown voltage at 1 mA.
2 A passive Anode of the unidirectional Transil, typically connected to ground/reference; device handles 1500 W peak pulse power (10/1000 µs).

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
Leakage current IRM 300 µA @ VRM = 5 V 3
Stand-off voltage VRM 5 V 3
Breakdown voltage VBR 6 V @ IR = 1 mA, pulse test tp < 50 ms 3
Clamping voltage VCL 7.6 V @ IPP = 30 A, 10/1000 µs 3
Clamping voltage VCL 8 V @ IPP = 60 A, 10/1000 µs 3
Clamping voltage VCL 8.5 V @ IPP = 120 A, 10/1000 µs 3
Peak pulse power dissipation PPP 1500 W Tj initial = Tamb, Tamb = 25 °C 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
Thermal resistance junction to leads Rth(j-l) 15 °C/W SMC 2
Thermal resistance junction to ambient Rth(j-a) 90 °C/W on printed circuit on recommended pad layout, SMC 2
Voltage temperature coefficient αT 5.7 10-4/°C 3
Capacitance C 9500 pF 3

CAD (KiCad official)

  • Symbol: SM5908
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC (KiCad packages3D, STEP)
  • 3D model files: sm5908-etched.step / sm5908-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm5908.step / sm5908.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (9 pp, sha256 cd9d5412f7db212a, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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).

Datasheet PDF