# RB521CS-30DB

**PJSEMI** · Schottky Barrier Diodes (SBD) · DFN1006-2L

RB521CS-30DB from PJSEMI, in a DFN1006-2L. 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 | PJSEMI |
| Package | DFN1006-2L |
| 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 at IF = 10mA | VF |  |  | 0.35 | V | at IF = 10mA | 1 |
| Forward Voltage at IF = 20mA | VF |  |  | 0.4 | V | at IF = 20mA | 1 |
| Reverse Current | IR |  |  | 30 | µA | at VR = 10 V | 1 |
| DC Reverse Voltage | VR |  |  | 30 | V |  | 1 |
| Mean Rectifying Current | IO |  |  | 200 | mA |  | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 0.5 | A | at t=8.3ms | 1 |
| Power dissipation | PD |  |  | 200 | mW |  | 1 |
| Thermal Resistance Junction to Ambient | RθJA |  |  | 500 | °C/W |  | 1 |
| Operating Junction Temperature | TJ |  |  | 125 | °C |  | 1 |
| Storage Temperature Range | TSTG | -40 |  | 125 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `RB521CS-30DB`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2L (KiCad packages3D, STEP)
- 3D model files: `rb521cs-30db-etched.step` / `rb521cs-30db-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rb521cs-30db.step` / `rb521cs-30db.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PJSEMI datasheet](docs/rb521cs-30db-datasheet.pdf) (3 pp, sha256 `52e0f8d40e12156f`, retrieved 2026-10-21, 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/rb521cs-30db-datasheet.pdf)