component

SM6F18AY

Public Made by Adom

by adom

STMicroelectronics Electrostatic And Surge Protection (TVS/ESD), SOD-128. 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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SM6F18AY

STMicroelectronics · Electrostatic And Surge Protection (TVS/ESD) · SOD-128

SM6F18AY from STMicroelectronics, in a SOD-128. 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 SOD-128
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
Maximum leakage current at VRM, 25 °C IRM 0.2 µA at VRM, 25 °C 3
Maximum leakage current at VRM, 85 °C IRM 1 µA at VRM, 85 °C 3
Breakdown voltage VBR 20 21.1 22.2 V at IBR = 1 mA 3
Clamping voltage, 10/1000 µs surge VCL 29.2 V 10/1000 µs; Tamb = 25 °C 3
Peak pulse current, 10/1000 µs surge IPP 21.5 A 10/1000 µs; Tamb = 25 °C 3
Dynamic resistance, 10/1000 µs surge RD 0.326 Ω 10/1000 µs; Tamb = 25 °C 3
Clamping voltage, 8/20 µs surge VCL 39.3 V 8/20 µs; Tamb = 25 °C 3
Peak pulse current, 8/20 µs surge IPP 102 A 8/20 µs; Tamb = 25 °C 3
Dynamic resistance, 8/20 µs surge RD 0.168 Ω 8/20 µs; Tamb = 25 °C 3
Voltage temperature coefficient αT 9.2 10-4/°C 3
Peak pulse voltage, ISO10605 (C = 330 pF, R = 330 Ω), contact discharge VPP 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 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 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 kV ISO10605 / IEC 61000-4-2, C = 150 pF, R = 330 Ω, air discharge 2
Peak pulse power dissipation PPP 600 W 10/1000 µs, 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 platting Complies with the following standards 1

CAD (KiCad official)

  • Symbol: SM6F18AY
  • Footprint: Diode_SMD:D_SOD-128
  • 3D model: SOD-128 (KiCad packages3D, STEP)
  • 3D model files: sm6f18ay-etched.step / sm6f18ay-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm6f18ay.step / sm6f18ay.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (15 pp, sha256 148ab45601a35e4e, retrieved 2026-10-28, 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