# SMCJ54CA

**Brightking** · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)

SMCJ54CA from Brightking, in a SMC(DO-214AB). 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 | A1 | passive | Bidirectional TVS terminal 1 with no polarity (no cathode band on bidirectional models), VRWM 54.0 V, VBR 60.00~66.30 V at 1 mA, VC 87.1 V at 17.3 A IPP. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 with no polarity (no cathode band on bidirectional models), interchangeable with terminal 1, 1500 W minimum peak pulse power at 10/1000μs. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Brightking |
| Package | SMC(DO-214AB) |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SMCJ54CA`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files: `smcj54ca-etched.step` / `smcj54ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smcj54ca.step` / `smcj54ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Brightking datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586198051995836416) (6 pp, sha256 `00cf7d9684b63f1b`, retrieved 2026-10-12, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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).

[Datasheet PDF](docs/smcj54ca-datasheet.pdf)