component

SM30T7.5CAY

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 protectionsm30t7.5cayfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

SM30T7.5CAY

STMicroelectronics · TVS · SMC(DO-214AB)

SM30T7.5CAY 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 IRM 250 µA at VRM 3
Stand-off voltage VRM 6.5 V 3
Breakdown voltage VBR 7.13 7.5 7.9 V at IR = 10 mA 3
Clamping voltage 10/1000 µs VCL 11.2 V 10/1000 µs, IPP = 268 A 3
Peak pulse current 10/1000 µs IPP 268 A 10/1000 µs 3
Dynamic resistance 10/1000 µs RD 0.014 Ω 10/1000 µs 3
Clamping voltage 8/20 µs VCL 15.2 V 8/20 µs, IPP = 1530 A 3
Peak pulse current 8/20 µs IPP 1530 A 8/20 µs 3
Dynamic resistance 8/20 µs RD 0.004 Ω 8/20 µs 3
Voltage temperature coefficient αT 6.1 10-4/°C 3
Peak pulse voltage, contact discharge (ISO10605 C=330 pF, R=330 Ω) VPP 30 kV Tamb = 25 °C 2
Peak pulse voltage, air discharge (ISO10605 C=330 pF, R=330 Ω) VPP 30 kV Tamb = 25 °C 2
Peak pulse voltage, contact discharge (ISO10605/IEC 61000-4-2 C=150 pF, R=330 Ω) VPP 30 kV Tamb = 25 °C 2
Peak pulse voltage, air discharge (ISO10605/IEC 61000-4-2 C=150 pF, R=330 Ω) VPP 30 kV Tamb = 25 °C 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: SM30T7.5CAY
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
  • 3D model files: sm30t7-5cay-etched.step / sm30t7-5cay-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm30t7-5cay.step / sm30t7-5cay.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 2026-10-27, 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