component
SMAJ64A-AT
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Brightking Elec (TAIWAN) TVS, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, 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
markdownSMAJ64A-AT
Brightking Elec (TAIWAN) · TVS · SMA(DO-214AC)
SMAJ64A-AT from Brightking Elec (TAIWAN), 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 terminal, marked by the color band on the unidirectional SMAJ64A-AT, which has VRWM 64.0 V, VBR 71.10~78.60 V and VC 103.0 V at IPP 3.9 A. |
| 2 | A | passive | Anode terminal of the unidirectional SMAJ64A-AT, opposite the cathode band, with 400 W peak pulse power at 10/1000μs. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Brightking Elec (TAIWAN) |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 71.1 | 78.6 | V | @IT=1 mA | 3 | |
| Reverse Stand-Off Voltage | VRWM | 64 | V | 3 | |||
| Maximum Clamping Voltage | VC | 103 | V | @IPP=3.9 A | 3 | ||
| Peak Pulse Current | IPP | 3.9 | A | 10/1000μs waveform | 3 | ||
| Reverse Leakage | IR | 1 | μA | @VRWM | 3 | ||
| Test Current | IT | 1 | mA | 3 | |||
| Peak pulse power dissipation | PPPM | 400 | Watts | 10/1000μs waveform, TA=25℃ | 1 | ||
| Steady state power dissipation | PM(AV) | 3.3 | Watts | TA=50℃ | 1 | ||
| Peak forward surge current | IFSM | 40 | Amps | 8.3ms single half sine-wave superimposed on rated load | 1 | ||
| Operating junction and storage temperature range | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJL | 30 | ℃/W | Typical | 1 | ||
| Thermal resistance junction to ambient | RθJA | 120 | ℃/W | Typical | 1 | ||
| VBR Voltage Tolerance | -5 | 5 | % | A suffix: 5% VBR voltage tolerance | 6 |
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 | 2. Mounted on 5.0mm×5.0mm (0.03mm thick) copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
SMAJ64A-AT - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj64a-at-etched.step/smaj64a-at-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj64a-at.step/smaj64a-at.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Brightking Elec (TAIWAN) datasheet (6 pp, sha256
b89bf590a7f5b511, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(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).