# 1SS400CMT2R

**ROHM Semicon** · Switching Diodes · SOD-923

1SS400CMT2R from ROHM Semicon, in a SOD-923. 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, marked by the bar on the package; reverse voltage VR 80 V max and repetitive peak reverse voltage VRM 90 V. |
| 2 | A | passive | Anode; average rectified forward current Io 100 mA, forward current IFM 225 mA, peak surge IFSM 500 mA (t=1s). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOD-923 |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `1SS400CMT2R`
- Footprint: `Diode_SMD:D_SOD-923`
- 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files: `1ss400cmt2r-etched.step` / `1ss400cmt2r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1ss400cmt2r.step` / `1ss400cmt2r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588937049403764736) (7 pp, sha256 `3acd9ba749290656`, retrieved 2026-10-12, 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/1ss400cmt2r-datasheet.pdf)