component
SMA6T39AY
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.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 12d ago |
| viewers | 12d ago |
| package.json | 12d ago |
| page.json | 12d ago |
| README.md | 12d ago |
| sma6t39ay-etched.glb | 12d ago |
| sma6t39ay-etched.step | 12d ago |
| sma6t39ay-hero.glb | 12d ago |
| sma6t39ay-hero.overlay.json | 12d ago |
| sma6t39ay.glb | 12d ago |
| sma6t39ay.kicad_mod | 12d ago |
| sma6t39ay.kicad_sym | 12d ago |
| sma6t39ay.lbr | 12d ago |
| sma6t39ay.step | 12d ago |
SMA6T39AY
STMicroelectronics · TVS · SMA(DO-214AC)
SMA6T39AY 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 | 33.3 | 37.1 | 39 | V | at IBR = 1 mA | 3 |
| Clamping voltage, 10/1000 µs surge | VCL | 53.9 | V | 10/1000 µs, IPP = 11.1 A | 3 | ||
| Peak pulse current, 10/1000 µs | IPP | 11.1 | A | 10/1000 µs | 3 | ||
| Dynamic resistance, 10/1000 µs | RD | 1.16 | Ω | 10/1000 µs | 3 | ||
| Clamping voltage, 8/20 µs surge | VCL | 69.7 | V | 8/20 µs, IPP = 57.0 A | 3 | ||
| Peak pulse current, 8/20 µs | IPP | 57 | A | 8/20 µs | 3 | ||
| Dynamic resistance, 8/20 µs | RD | 0.504 | Ω | 8/20 µs | 3 | ||
| Temperature coefficient of VBR/VCL (αT) | αT | 10 | 10-4/°C | 3 | |||
| Peak pulse power dissipation | PPP | 600 | W | 10/1000 µs, Tj initial = Tamb | 2 | ||
| Peak pulse voltage, contact discharge | VPP | 30 | kV | ISO10605 (C = 330 pF, R = 330 Ω), contact discharge | 2 | ||
| Peak pulse voltage, air discharge | VPP | 30 | kV | ISO10605 (C = 330 pF, R = 330 Ω), air discharge | 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 |
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:
SMA6T39AY - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
sma6t39ay-etched.step/sma6t39ay-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sma6t39ay.step/sma6t39ay.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (13 pp, sha256
e2c095824ea9d1d1, retrieved 2026-10-21, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band 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).