# SMCJ40CAHE3-TP

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

SMCJ40CAHE3-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 | Terminal 1 | passive | First terminal of the bi-directional (C-suffix) TVS, with no polarity and no cathode mark; it is interchangeable with terminal 2 and the part has VWM 40V, VBR 44.4-49.1V at 1mA and max VC 64.5V at 23.3A IPP. |
| 2 | Terminal 2 | passive | Second terminal of the bi-directional (C-suffix) TVS, with no polarity and no cathode mark; it is interchangeable with terminal 1 and the part has 1500W (min) peak pulse power on a 10/1000μs waveform. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SMC(DO-214AB) |
| 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 (bi-directional, 40 V stand-off) | VBR | 44.4 |  | 49.1 | V | @ IT = 1 mA | 2 |
| Max. Clamping Voltage | VC |  |  | 64.5 | V | @ IPP = 23.3 A | 2 |
| Reverse Leakage Current | ID |  |  | 1 | µA | @ VWM = 40 V | 2 |
| Peak Pulse Power Dissipation | PPPM | 1500 |  |  | W | 10/1000μs Waveform, Note 3,4, Fig1 | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 175 | °C |  | 1 |
| Storage Temperature Range |  | -55 |  | 175 | °C |  | 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: `SMCJ40CAHE3-TP`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files: `smcj40cahe3-tp-etched.step` / `smcj40cahe3-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smcj40cahe3-tp.step` / `smcj40cahe3-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/smcj40cahe3-tp-datasheet.pdf) (4 pp, sha256 `60fb04b874457c6b`, 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/smcj40cahe3-tp-datasheet.pdf)