# SMBJ58CA-TR

**STMicroelectronics** · ESD And Surge Protection (TVS/ESD) · SMB(DO-214AA)

SMBJ58CA-TR from STMicroelectronics, in a SMB(DO-214AA). 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 (SMBJ58CA, VRM 58 V, VBR 64.4 to 67.8 V at 1 mA), interchangeable with the other terminal since the device clamps in both polarities. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 (SMBJ58CA, VRM 58 V, max VCL 93.6 V at 6.7 A for 10/1000 µs), interchangeable with the other terminal since the device clamps in both polarities. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SMB(DO-214AA) |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SMBJ58CA-TR`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `smbj58ca-tr-etched.step` / `smbj58ca-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj58ca-tr.step` / `smbj58ca-tr.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/8590224714074386432) (13 pp, sha256 `391b3983b30f4bc3`, retrieved 2026-10-13, 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/smbj58ca-tr-datasheet.pdf)