# SMBJ12CA-TP

**MCC(Micro Commercial Components)** · TVS · SMB(DO-214AA)

SMBJ12CA-TP from MCC(Micro Commercial Components), 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 | Terminal 1 | passive | Bi-directional TVS terminal with no polarity (SMBJ12CA: VWM 12 V, VBR 13.3-14.7 V at 1 mA, clamping 19.9 V at 30.2 A IPP); interchangeable with the other terminal. |
| 2 | Terminal 2 | passive | Bi-directional TVS terminal with no polarity (SMBJ12CA: VWM 12 V, VBR 13.3-14.7 V at 1 mA, clamping 19.9 V at 30.2 A IPP); interchangeable with the other terminal. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SMB(DO-214AA) |
| 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 V(BR) (MIN/MAX) | V(BR) | 13.3 |  | 14.7 | V | @ IT = 1 mA | 4 |
| Maximum clamping voltage | VC |  |  | 19.9 | V | @ IPP = 30.2 A | 4 |
| Maximum reverse leakage current | ID |  |  | 1 | µA | @ VWM = 12 V | 4 |
| Peak Pulse Power Dissipation | PPP |  |  | 600 | W | Note 2,3,4 | 1 |
| Steady State Power Dissipation | PM(AV) |  |  | 5 | W | Note 5: infinite heat sink at TL = 75 °C | 1 |
| Breakdown voltage tolerance (CA suffix) |  | -5 |  | 5 | % | Bidirectional CA suffix, 5% tolerance per datasheet feature note | 1 |
| Operating junction temperature range | TJ | -55 |  | 175 | °C |  | 1 |
| Storage temperature range | TSTG | -55 |  | 175 | °C |  | 1 |
| Thermal resistance junction to lead | RθJL |  | 20 |  | °C/W |  | 1 |
| Thermal resistance junction to case | RθJC |  | 25 |  | °C/W |  | 1 |
| Maximum soldering temperature |  |  |  | 260 | °C | for 10 seconds | 1 |

## 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 |  | copper pads to each terminal. | 1 |

## CAD (KiCad official)

- Symbol: `SMBJ12CA-TP`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files: `smbj12ca-tp-etched.step` / `smbj12ca-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smbj12ca-tp.step` / `smbj12ca-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/smbj12ca-tp-datasheet.pdf) (8 pp, sha256 `01214abe0af87258`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/smbj12ca-tp-datasheet.pdf)