# SMCJ110CA

**TWGMC** · ESD And Surge Protection (TVS/ESD) · DO-214AB(SMC)

SMCJ110CA from TWGMC, in a DO-214AB(SMC). 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 | Cathode | passive | Cathode terminal per the pinning table; SMCJ110CA is bidirectional with 110 V reverse stand-off, 122-135 V breakdown at 1 mA and 177 V maximum clamping at 8.5 A peak pulse current. |
| 2 | Anode | passive | Anode terminal per the pinning table; SMCJ110CA is bidirectional with 110 V reverse stand-off, 122-135 V breakdown at 1 mA and 177 V maximum clamping at 8.5 A peak pulse current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TWGMC |
| Package | DO-214AB(SMC) |
| 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 | 122 |  | 135 | V | @IT = 1 mA | 2 |
| Maximum Clamping Voltage | VC |  |  | 177 | V | @IPP = 8.5 A | 2 |
| Peak Pulse Power Dissipation | PPPM |  |  | 1500 | W | 10/1000 us waveform | 1 |
| Peak Forward Surge Current | IFSM |  |  | 200 | A | 8.3 ms single half sine-wave, superimposed on rated load (JEDEC method) | 1 |
| Operating Junction and Storage Temperature Range | Tj, Tstg | -55 |  | 150 | °C |  | 1 |
| Power dissipation on infinite heat sink | PD |  |  | 6.5 | W | TA=50°C | 1 |
| Reverse Stand-Off Voltage | VRWM |  | 110 |  | V | Bidirectional (CA suffix) | 2 |
| Typical Thermal Resistance Junction to Ambient | RθJA |  | 75 |  | °C/W | Mounted on 8 mm land areas (Note 1) | 1 |
| Thermal Resistance Junction to Lead | RθJL |  | 15 |  | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `SMCJ110CA`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: DO-214AB(SMC) (KiCad packages3D, STEP)
- 3D model files: `smcj110ca-etched.step` / `smcj110ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smcj110ca.step` / `smcj110ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TWGMC datasheet](docs/smcj110ca-datasheet.pdf) (5 pp, sha256 `2bb7845336b777a3`, retrieved 2026-11-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-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/smcj110ca-datasheet.pdf)