# RR264M-400TR

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

RR264M-400TR from ROHM Semicon, in a SOD-123F. 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 of the rectifying diode (marked side); the datasheet shows only anode/cathode labels on the PMDU outline, with 400V VRM and 1A direct current rating. |
| 2 | A | passive | Anode of the rectifying diode; the datasheet shows only anode/cathode labels on the PMDU outline, with forward voltage max 1.1V at IF=0.7A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOD-123F |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward voltage | VF |  |  | 1.1 | V | IF=0.7A, Tj=25°C | 1 |
| Reverse current | IR |  |  | 10 | A | VR=400V, Tj=25°C | 1 |
| Repetitive peak reverse voltage | VRM |  |  | 400 | V | Ta=25°C | 1 |
| Direct forward current | IF |  |  | 1 | A | Ta=25°C | 1 |
| Average current | Io |  |  | 0.7 | A | 60Hz half sin wave, Resistive load | 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 |

## CAD (KiCad official)

- Symbol: `RR264M-400TR`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123F (KiCad packages3D, STEP)
- 3D model files: `rr264m-400tr-etched.step` / `rr264m-400tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rr264m-400tr.step` / `rr264m-400tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](docs/rr264m-400tr-datasheet.pdf) (7 pp, sha256 `37dc846d4bb3b96b`, retrieved 2026-10-22, tier: manufacturer)
- **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/rr264m-400tr-datasheet.pdf)