# RB550V-30

**Changjing** · Schottky Diodes · SOD-323

RB550V-30 from Changjing, in a SOD-323. 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, identified by the marking bar on the SOD-323 package; the diode has VRM of 30 V and IO of 1 A. |
| 2 | A | passive | Anode of the Schottky barrier diode, with forward voltage of 0.49 V at IF=700 mA and 0.52 V at IF=1 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse voltage | V(BR) | 30 |  |  | V | IR=1mA | 1 |
| Reverse current | IR |  |  | 0.03 | mA | VR=10V | 1 |
| Forward voltage | VF |  |  | 0.49 | V | IF=700mA | 1 |
| Forward voltage | VF |  |  | 0.52 | V | IF=1A | 1 |
| Non-Repetitive Peak Reverse Voltage | VRM |  |  | 30 | V | Ta=25℃ | 1 |
| Continuous Forward Current | IO |  |  | 1 | A | Ta=25℃ | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 3 | A | t=8.3ms, Ta=25℃ | 1 |
| Power Dissipation | PD |  |  | 200 | mW | Ta=25℃ | 1 |
| Junction Temperature | Tj |  |  | 125 | ℃ |  | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance From Junction To Ambient | RθJA |  | 500 |  | ℃/W |  | 1 |

## CAD (KiCad official)

- Symbol: `RB550V-30`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `rb550v-30-etched.step` / `rb550v-30-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rb550v-30.step` / `rb550v-30.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590224762229596160) (4 pp, sha256 `6102214d45dba529`, 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/rb550v-30-datasheet.pdf)