# S-SM340C

**LRC** · Schottky Diodes · SMC

S-SM340C from LRC, in a 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 | K | passive | Cathode terminal; the datasheet shows the diode symbol with the cathode on the bar side, and the part is rated for 40V repetitive peak reverse voltage and 3A average forward current. |
| 2 | A | passive | Anode terminal; the part has a maximum forward voltage of 0.55V at 3.0A and a peak forward surge current of 140A (8.3ms half sine-wave). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SMC |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `S-SM340C`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC (KiCad packages3D, STEP)
- 3D model files: `s-sm340c-etched.step` / `s-sm340c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s-sm340c.step` / `s-sm340c.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LRC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603165896361984000) (3 pp, sha256 `1d105162b3cfa967`, 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/s-sm340c-datasheet.pdf)