# RR264MM-400TR

**ROHM Semicon** · Diodes - General Purpose · SOD-123FL

RR264MM-400TR from ROHM Semicon, 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOD-123FL |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive peak reverse voltage | VRM |  |  | 400 | V |  | 1 |
| Direct current | IF |  |  | 1 | A | Tl=130°C | 1 |
| Average current | Io |  |  | 0.7 | A | 60Hz half sin wave, resistive load, Duty ≦0.5 | 1 |
| Non-repetitive forward surge current | IFSM |  |  | 25 | A | 60Hz half sin wave, Non-repetitive, Tj=25°C | 1 |
| Junction temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | °C |  | 1 |
| Forward voltage | VF | 0.8 | 0.95 | 1.1 | V | IF=0.7A | 1 |
| Reverse current | IR |  | 0.02 | 10 | A | VR=400V | 1 |

## CAD (KiCad official)

- Symbol: `RR264MM-400TR`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `rr264mm-400tr-etched.step` / `rr264mm-400tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rr264mm-400tr.step` / `rr264mm-400tr.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/8588909846385610752) (7 pp, sha256 `057e0f80bef6bad8`, retrieved 2026-10-14, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/rr264mm-400tr-datasheet.pdf)