# RL0402A8R0K

**RUILON Shenzhen Ruilongyuan Elec** · Varistors · 0402

RL0402A8R0K from RUILON Shenzhen Ruilongyuan Elec, in a 0402. 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 | 1 | passive | Varistor terminal (Ag/Ni/Sn end termination, 0.25±0.10 mm); non-polarized, rated 8 V DC / 6 V RMS continuous with 13~26 V breakdown at 1 mA and 72 V max clamping. |
| 2 | 2 | passive | Second varistor terminal (Ag/Ni/Sn end termination, 0.25±0.10 mm); interchangeable with the other terminal, IEC61000-4-2 Level 4 ESD rated with ~130 pF typical capacitance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RUILON Shenzhen Ruilongyuan Elec |
| Package | 0402 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `RL0402A8R0K`
- Footprint: `Resistor_SMD:R_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `rl0402a8r0k-etched.step` / `rl0402a8r0k-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rl0402a8r0k.step` / `rl0402a8r0k.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/8603006483429154816) (6 pp, sha256 `c17f809e99461e52`, retrieved 2026-10-09, 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/rl0402a8r0k-datasheet.pdf)