# RF201LAM2STR

**ROHM Semicon** · Fast Recovery / High Efficiency Diodes · SOD-128

RF201LAM2STR from ROHM Semicon, in a SOD-128. 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 | Cathode | passive | Cathode terminal of the super fast recovery diode; the datasheet gives no pin-specific limit, so the ratings apply to the device as a whole (VR = 200 V, IO = 2 A at Tl = 105 °C, IFSM = 20 A non-repetitive). |
| 2 | Anode | passive | Anode terminal of the super fast recovery diode; the datasheet gives no pin-specific limit, so the ratings apply to the device as a whole (VR = 200 V, IO = 2 A at Tl = 105 °C, IFSM = 20 A non-repetitive). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOD-128 |
| 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 | 0.7 | 0.8 | 0.87 | V | IF=2A | 1 |
| Reverse current | IR |  |  | 10 | A | VR=200V | 1 |
| Reverse recovery time | trr |  | 16 | 25 | ns | IF=0.5A, IR=1A, Irr=0.25×IR | 1 |
| Repetitive peak reverse voltage | VRM |  |  | 200 | V | Tl=25°C | 1 |
| Reverse voltage | VR |  |  | 200 | V | Tl=25°C | 1 |
| Average rectified forward current | Io |  |  | 2 | A | Tl=105°C, 60Hz half sine wave, resistive load | 1 |
| Non-repetitive forward surge current | IFSM |  |  | 20 | A | Non-repetitive, Tj=25°C, 60Hz half sine wave | 1 |
| Operating junction temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature | Tstg |  |  | 150 | °C |  | 1 |
| Thermal resistance, junction to lead | Rth(j-l) |  |  | 25 | °C/W | Junction to lead | 1 |

## CAD (KiCad official)

- Symbol: `RF201LAM2STR`
- Footprint: `Diode_SMD:D_SOD-128`
- 3D model: SOD-128 (KiCad packages3D, STEP)
- 3D model files: `rf201lam2str-etched.step` / `rf201lam2str-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rf201lam2str.step` / `rf201lam2str.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/8589943534053986304) (7 pp, sha256 `45975bf997bf4377`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/rf201lam2str-datasheet.pdf)