component

SM30T6.8AY

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.

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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 11d ago
viewers sm30t6-8ay: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
package.json Publish 0.1.0 · Ray 11d ago
page.json Set visibility: public · Ray 11d ago
README.md Publish 0.1.0 · Ray 11d ago
sm30t6-8ay-etched.glb Publish 0.1.0 · Ray 11d ago
sm30t6-8ay-etched.step sm30t6-8ay: factory component page (tier=mfr) · Ray 11d ago
sm30t6-8ay-hero.glb sm30t6-8ay: hero GLB from the etched model (keeps the MPN mark) · Ray 11d ago
sm30t6-8ay-hero.overlay.json Publish 0.1.0 · Ray 11d ago
sm30t6-8ay.glb Publish 0.1.0 · Ray 11d ago
sm30t6-8ay.kicad_mod Publish 0.1.0 · Ray 11d ago
sm30t6-8ay.kicad_sym sm30t6-8ay: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
sm30t6-8ay.lbr sm30t6-8ay: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
sm30t6-8ay.step Publish 0.1.0 · Ray 11d ago

SM30T6.8AY

STMicroelectronics · TVS · SMC(DO-214AB)

SM30T6.8AY 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 (IRM max at VRM) IRM 500 µA at VRM = 5 V 3
Breakdown voltage VBR VBR 6.45 6.8 7.1 V at IR = 10 mA, Tamb = 25 °C 3
Temperature coefficient of VBR (αT) αT 5.7 10-4/°C VBR at Tj = VBR at 25 °C x (1 + αT x (Tj - 25)) 3
Clamping voltage, 10/1000 µs (VCL max) VCL 9.2 V 10/1000 µs waveform, IPP = 327 A 3
Peak pulse current, 10/1000 µs (IPP max) IPP 327 A 10/1000 µs waveform 3
Dynamic resistance, 10/1000 µs (RD max) RD 0.007 Ω 10/1000 µs waveform 3
Clamping voltage, 8/20 µs (VCL max) VCL 14.4 V 8/20 µs waveform, IPP = 1610 A 3
Peak pulse current, 8/20 µs (IPP max) IPP 1610 A 8/20 µs waveform 3
Dynamic resistance, 8/20 µs (RD max) RD 0.004 Ω 8/20 µs waveform 3
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 (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 / 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 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 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: SM30T6.8AY
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
  • 3D model files: sm30t6-8ay-etched.step / sm30t6-8ay-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm30t6-8ay.step / sm30t6-8ay.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (16 pp, sha256 78352e28f9839334, retrieved 2026-10-28, 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