# LRB521S-40T1G

**LRC** · Schottky Diodes · SOD-523

LRB521S-40T1G from LRC, in a SOD-523. 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 Schottky barrier diode, rated for a DC reverse voltage VR of 40 V and a mean rectifying current IO of 200 mA (TA = 25°C). |
| 2 | Anode | passive | Anode terminal of the Schottky barrier diode, with forward voltage VF of 0.30 V at IF = 10 mA and reverse current IR of 20 µA maximum at VR = 10 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOD-523 |
| Category | Diodes |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `LRB521S-40T1G`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `lrb521s-40t1g-etched.step` / `lrb521s-40t1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lrb521s-40t1g.step` / `lrb521s-40t1g.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/8586188013835587584) (4 pp, sha256 `37cf021ac6b4a999`, retrieved 2026-10-12, 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/lrb521s-40t1g-datasheet.pdf)