# RB520S-30-MS

**MSKSEMI** · Schottky Barrier Diodes (SBD) · SOD-523

RB520S-30-MS from MSKSEMI, 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 of the Schottky diode; reverse voltage rating VR is 30 V and mean rectifying current is 200 mA. |
| 2 | Anode | passive | Anode of the Schottky diode; forward voltage is 0.6 V max at IF = 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOD-523 |
| 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 |  |  | 0.6 | V | IF = 200 mA | 2 |
| Reverse Current | IR |  |  | 1 | µA | VR = 10 V | 2 |
| Reverse Voltage | VR |  |  | 30 | V | Ta = 25 °C | 2 |
| Mean Rectifying Current | IF(AV) |  |  | 200 | mA | Ta = 25 °C | 2 |
| Peak Forward Surge Current | IFSM |  |  | 1 | A | 60 Hz for 1 Cyc. | 2 |
| Junction Temperature | Tj |  |  | 125 | °C | Ta = 25 °C | 2 |
| Storage Temperature Range | Tstg | -40 |  | 125 | °C | Ta = 25 °C | 2 |

## CAD (KiCad official)

- Symbol: `RB520S-30-MS`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `rb520s-30-ms-etched.step` / `rb520s-30-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rb520s-30-ms.step` / `rb520s-30-ms.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](docs/rb520s-30-ms-datasheet.pdf) (5 pp, sha256 `adf6b0fe928973bc`, retrieved 2026-10-22, tier: lcsc)
- **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/rb520s-30-ms-datasheet.pdf)