# SMDJ8.0CA

**Littelfuse** · TVS · DO-214AB(SMCJ)

SMDJ8.0CA from Littelfuse, in a DO-214AB(SMCJ). 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 | Bidirectional TVS terminal with no polarity (no cathode band on CA versions); stand-off voltage 8.0 V, breakdown 8.89-9.83 V at 1 mA, max clamping 13.6 V at 220.6 A (10/1000µs). |
| 2 | Terminal 2 | passive | Bidirectional TVS terminal interchangeable with the other terminal; 3000 W peak pulse power at 10/1000µs, max reverse leakage 50 µA at 8.0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DO-214AB(SMCJ) |
| 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 VBR | VBR | 8.89 |  | 9.83 | V | Test current IT = 1 mA | 2 |
| Maximum Clamping Voltage VC @ Ipp(10/1000µs) | VC |  |  | 13.6 | V | @ Ipp(10/1000µs) | 2 |
| Maximum Peak Pulse Current Ipp(10/1000µs) | Ipp |  |  | 220.6 | A | 10/1000µs waveform | 2 |
| Maximum Clamping Voltage VC @ Ipp(8/20µs) | VC |  |  | 17.57 | V | @ Ipp(8/20µs) | 2 |
| Maximum Peak Pulse Current Ipp(8/20µs) | Ipp |  |  | 1103 | A | 8/20µs waveform | 2 |
| Maximum Reverse Leakage Current | IR |  |  | 50 | µA | @ VR | 2 |
| Maximum Temperature Coefficient of VBR |  |  |  | 0.064 | %/C |  | 2 |
| Peak Pulse Power Dissipation | PPPM |  |  | 3000 | W | 10/1000µs test waveform, single die parts | 1 |
| Power Dissipation on Infinite Heat Sink | PD |  |  | 6.5 | W | Infinite heat sink at TL = 50°C | 1 |
| Operating Temperature Range | TJ | -65 |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -65 |  | 175 | °C |  | 1 |
| Reverse Stand-off Voltage | VR |  | 8 |  | V |  | 2 |
| Typical Thermal Resistance Junction to Lead | RƟJL |  | 15 |  | °C/W |  | 1 |
| Typical Thermal Resistance Junction to Ambient | RƟJA |  | 75 |  | °C/W |  | 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 |  | 2. Mounted on copper pad area of 0.31x0.31” (8.0 x 8.0mm) to each terminal. | 1 |

## CAD (KiCad official)

- Symbol: `SMDJ8.0CA`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: DO-214AB(SMCJ) (KiCad packages3D, STEP)
- 3D model files: `smdj8-0ca-etched.step` / `smdj8-0ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smdj8-0ca.step` / `smdj8-0ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](docs/smdj8-0ca-datasheet.pdf) (6 pp, sha256 `aab821491f3c43e0`, 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/smdj8-0ca-datasheet.pdf)