# SMF220CA

**ZHIDE** · ESD And Surge Protection (TVS/ESD) · SOD-123FL

SMF220CA from ZHIDE, in a SOD-123FL. 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 | A1 | passive | Bidirectional (C suffix) TVS terminal with no polarity band, 220 V reverse stand-off (VRWM), 246-272 V breakdown at 1 mA, 356 V max clamping at 0.56 A IPP. |
| 2 | A2 | passive | Second bidirectional TVS terminal, interchangeable with the other; the datasheet says the color band marks the cathode except on bipolar parts, so this part has none. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZHIDE |
| Package | SOD-123FL |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SMF220CA`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `smf220ca-etched.step` / `smf220ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smf220ca.step` / `smf220ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ZHIDE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207790053957632) (3 pp, sha256 `3b46e19c23d691d8`, retrieved 2026-10-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/smf220ca-datasheet.pdf)