# SMA6T82AY

**STMicroelectronics** · ESD And Surge Protection (TVS/ESD) · SMA(DO-214AC)

SMA6T82AY 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 | 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 | SMA(DO-214AC) |
| 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 at VRM, 25 °C | IRM |  |  | 0.2 | µA | at VRM, 25 °C | 3 |
| Reverse leakage current at VRM, 85 °C | IRM |  |  | 1 | µA | at VRM, 85 °C | 3 |
| Breakdown voltage | VBR | 77.8 |  |  | V | at IBR = 1 mA | 3 |
| Breakdown voltage | VBR |  |  | 86 | V | at IBR = 1 mA | 3 |
| Clamping voltage, 10/1000 µs surge | VCL |  |  | 110 | V | 10/1000 µs | 3 |
| Peak pulse current, 10/1000 µs surge | IPP |  |  | 5.5 | A | 10/1000 µs | 3 |
| Dynamic resistance, 10/1000 µs surge | RD |  |  | 4.38 | Ω | 10/1000 µs | 3 |
| Clamping voltage, 8/20 µs surge | VCL |  |  | 146 | V | 8/20 µs | 3 |
| Peak pulse current, 8/20 µs surge | IPP |  |  | 27 | A | 8/20 µs | 3 |
| Dynamic resistance, 8/20 µs surge | RD |  |  | 2.22 | Ω | 8/20 µs | 3 |
| Breakdown voltage | VBR |  | 81.9 |  | V | at IBR = 1 mA | 3 |
| Reverse stand-off voltage | VRM |  | 70 |  | V | Column VRM as printed; no min or max given | 3 |
| Breakdown voltage temperature coefficient | αT |  | 10.5 |  | 10-4/°C |  | 3 |
| Peak pulse power dissipation | PPP |  |  | 600 | W | 10/1000 µs, Tj initial = Tamb | 2 |
| Peak pulse voltage, contact and air discharge, ISO10605 (C = 330 pF, R = 330 Ω) | VPP |  |  | 30 | kV | Contact discharge and air discharge; series-wide value | 2 |
| Peak pulse voltage, ISO10605 / IEC 61000-4-2 (C = 150 pF, R = 330 Ω) | VPP |  |  | 30 | kV | Contact discharge and air discharge; series-wide value | 2 |
| Operating junction temperature range | Tj | -55 |  | 150 | °C |  | 2 |
| Storage temperature range | Tstg | -65 |  | 150 | °C |  | 2 |
| Maximum lead temperature for soldering | TL |  |  | 260 | °C | during 10 s | 2 |

## CAD (KiCad official)

- Symbol: `SMA6T82AY`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files: `sma6t82ay-etched.step` / `sma6t82ay-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sma6t82ay.step` / `sma6t82ay.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588942355096850432) (13 pp, sha256 `e2c095824ea9d1d1`, retrieved 2026-10-15, tier: lcsc)
- **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](docs/sma6t82ay-datasheet.pdf)