component
SM4T10CAY
Public Made by Adomby adom
STMicroelectronics TVS, SMA(DO-214AC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownSM4T10CAY
STMicroelectronics · TVS · SMA(DO-214AC)
SM4T10CAY from STMicroelectronics, in a SMA(DO-214AC). 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 | SMA(DO-214AC) |
| 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 max at VRM, 25 °C | IRM | 20 | µA | at VRM, 25 °C | 3 | ||
| Reverse leakage current max at VRM, 85 °C | IRM | 50 | µA | at VRM, 85 °C | 3 | ||
| Breakdown voltage | VBR | 9.4 | 9.9 | 10.4 | V | at IBR = 1 mA | 3 |
| Clamping voltage max, 10/1000 µs | VCL | 14.4 | V | 10/1000 µs, IPP = 27.7 A | 3 | ||
| Peak pulse current max, 10/1000 µs | IPP | 27.7 | A | 10/1000 µs, both directions | 3 | ||
| Dynamic resistance max, 10/1000 µs | RD | 0.145 | Ω | 10/1000 µs | 3 | ||
| Clamping voltage max, 8/20 µs | VCL | 19.5 | V | 8/20 µs, IPP = 124 A | 3 | ||
| Peak pulse current max, 8/20 µs | IPP | 124 | A | 8/20 µs, both directions | 3 | ||
| Dynamic resistance max, 8/20 µs | RD | 0.073 | Ω | 8/20 µs | 3 | ||
| Peak pulse voltage, IEC 61000-4-2 contact discharge | VPP | 30 | kV | IEC 61000-4-2, C = 150 pF, R = 330 Ω, contact discharge | 2 | ||
| Peak pulse voltage, IEC 61000-4-2 air discharge | VPP | 30 | kV | IEC 61000-4-2, C = 150 pF, R = 330 Ω, air discharge | 2 | ||
| Peak pulse voltage, ISO10605 contact discharge | VPP | 30 | kV | ISO10605, C = 330 pF, R = 330 Ω, contact discharge | 2 | ||
| Peakye ISO10605 air discharge | VPP | 30 | kV | ISO10605, C = 330 pF, R = 330 Ω, air discharge | 2 | ||
| Peak pulse power dissipation | PPP | 400 | W | Tj initial = Tamb | 2 | ||
| Storage temperature range | Tstg | -65 | 150 | °C | 2 | ||
| Operating junction temperature range | Tj | -55 | 150 | °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 | copper | copper area under each lead | 5 |
CAD (KiCad official)
- Symbol:
SM4T10CAY - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (14 pp, sha256
84e42de0a72418e4, retrieved 2026-10-29, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).