SMA6J33A-TR
Public Made by Adomby adom
STMicroelectronics ESD And Surge Protection (TVS/ESD), 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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README
markdownSMA6J33A-TR
STMicroelectronics · ESD And Surge Protection (TVS/ESD) · SMA(DO-214AC)
SMA6J33A-TR 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 | @VRM, 25 °C | 3 | ||
| Reverse leakage current at VRM, 85 °C | IRM | 1 | µA | @VRM, 85 °C | 3 | ||
| Breakdown voltage | VBR | 36.7 | 38.6 | 40.6 | V | @IR (1 mA), pulse test tp<50ms | 3 |
| Clamping voltage at 10/1000 µs | VCL | 51.9 | V | 10/1000 µs, IPP = 11.8 A | 3 | ||
| Dynamic resistance at 10/1000 µs | RD | 0.963 | Ω | 10/1000 µs | 3 | ||
| Clamping voltage at 8/20 µs | VCL | 69 | V | 8/20 µs, IPP = 57 A | 3 | ||
| Dynamic resistance at 8/20 µs | RD | 0.512 | Ω | 8/20 µs | 3 | ||
| Peak pulse power dissipation | PPP | 600 | W | 10/1000 µs, Tj initial = Tamb | 2 | ||
| Power dissipation on infinite heatsink | P | 4 | W | Tamb = 55 °C | 2 | ||
| Non repetitive surge peak forward current (unidirectional types) | IFSM | 60 | A | tp = 10 ms, 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 | ||
| Thermal resistance junction to leads | Rth (j-l) | 30 | °C/W | 2 | |||
| Thermal resistance junction to ambient | Rth (j-a) | 120 | °C/W | on printed circuit on recommended pad layout | 2 | ||
| Stand-off voltage | VRM | 33 | V | 3 | |||
| Voltage temperature coefficient | T | 10 | 10-4/°C | 3 |
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 | ambient versus copper surface under each lead | 5 |
CAD (KiCad official)
- Symbol:
SMA6J33A-TR - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
sma6j33a-tr-etched.step/sma6j33a-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sma6j33a-tr.step/sma6j33a-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (10 pp, sha256
502b8709e27ad744, retrieved 2026-10-16, tier: lcsc) - 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).