# RLSD32A031V

**RUILON Shenzhen Ruilongyuan Elec** · ESD And Surge Protection (TVS/ESD) · SOD-323

RLSD32A031V from RUILON Shenzhen Ruilongyuan Elec, 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 (marked-band end) of the unidirectional TVS diode, connected to the protected I/O or power line, with 3.3V reverse stand-off voltage (VRWM) for RLSD32A031V. |
| 2 | A | passive | Anode of the unidirectional TVS diode, connected to ground/reference, protecting one line up to 300W peak pulse power (8/20μs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RUILON Shenzhen Ruilongyuan Elec |
| Package | SOD-323 |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Minimum breakdown voltage | VBR | 5 |  |  | V | @1mA | 2 |
| Clamping voltage at 1 A (max) | VC |  |  | 7.8 | V | @1A | 2 |
| Peak pulse clamping voltage at IPP (max) | VC |  |  | 15 | V | @IPP, 8/20μs | 2 |
| Maximum reverse peak pulse current | Ipp |  |  | 20 | A | 8/20μs | 2 |
| Maximum reverse leakage current | IR |  |  | 1 | μA | @VRWM | 2 |
| Typical capacitance | CJ |  | 195 |  | pF | DC=0V, @1 MHz | 2 |
| Reverse stand-off voltage (working peak reverse voltage) | VRWM |  | 3.3 |  | V |  | 2 |
| Peak pulse power | PPK |  |  | 300 | W | tp=8/20μs | 1 |
| ESD voltage (contact) | VESD | -8 |  | 8 | kV | Contact, printed ±8 kV | 1 |
| ESD voltage (air) | VESD | -15 |  | 15 | kV | Air, printed ±15 kV | 1 |
| Lead soldering temperature | TL |  |  | 260 | °C | 10 sec | 1 |
| Operating temperature | TJ | -55 |  | 150 | °C |  | 1 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `RLSD32A031V`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `rlsd32a031v-etched.step` / `rlsd32a031v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rlsd32a031v.step` / `rlsd32a031v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [RUILON Shenzhen Ruilongyuan Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586172468982140928) (3 pp, sha256 `2712e3fbf82aff47`, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/rlsd32a031v-datasheet.pdf)