# SMCJ250A-TP

**MCC(Micro Commercial Components)** · Electrostatic And Surge Protection (TVS/ESD) · SMC(DO-214AB)

SMCJ250A-TP from MCC(Micro Commercial Components), 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SMC(DO-214AB) |
| Category | TVS/Fuse/Board Level 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 (unidirectional SMCJ250A) | VBR | 279 |  | 309 | V | IT = 1 mA | 3 |
| Maximum clamping voltage (unidirectional SMCJ250A) | VC |  |  | 405 | V | @ IPP = 3.7 A | 3 |
| Reverse leakage current (unidirectional SMCJ250A) | ID |  |  | 1 | µA | @ VWM = 250 V | 3 |
| Maximum instantaneous forward voltage | VF |  | 4 | 5 | V | at 100 A, unidirectional only; devices with VBR > 201 V (Note 6) | 1 |
| Peak pulse power dissipation | PPPM |  |  | 1500 | W | 10/1000 µs waveform, Note 3,4, Fig 1 | 1 |
| Peak forward surge current | IFSM |  |  | 200 | A | 8.3 ms single half sine-wave, unidirectional only | 1 |
| Power dissipation on infinite heat sink | PD |  |  | 6.5 | W | TL = 75 °C | 1 |
| Operating junction temperature range | TJ | -55 |  | 175 | °C |  | 1 |
| Storage temperature range | TSTG | -55 |  | 175 | °C |  | 1 |
| Typical thermal resistance junction to lead |  |  | 15 |  | °C/W | junction to lead | 1 |
| Typical thermal resistance junction to ambient |  |  | 75 |  | °C/W | junction to ambient | 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 |  | 4. Mounted on 8.0mm2copper pads to each terminal. | 1 |

## CAD (KiCad official)

- Symbol: `SMCJ250A-TP`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/smcj250a-tp-datasheet.pdf) (5 pp, sha256 `ebd53290ef3c1c50`, retrieved 2026-10-30, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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/smcj250a-tp-datasheet.pdf)