# RL1210A471K

**RUILON Shenzhen Ruilongyuan Elec** · Varistors · 1210

RL1210A471K from RUILON Shenzhen Ruilongyuan Elec, in a 1210. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A | passive | Terminal 1 of the metal oxide varistor. Bidirectional and symmetrical V/I characteristic, so the two terminals are electrically interchangeable. |
| 2 | B | passive | Terminal 2 of the metal oxide varistor. Bidirectional and symmetrical V/I characteristic, so the two terminals are electrically interchangeable. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RUILON Shenzhen Ruilongyuan Elec |
| Package | 1210 |
| Category | Circuit Protection |
| Pins | 2 |

## Ordering variants

Same part, different packaging or reel option.

- `RL1210A471K`

## CAD (KiCad official)

- Symbol: `RL1210A471K`
- Footprint: `Resistor_SMD:R_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `rl1210a471k-etched.step` / `rl1210a471k-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rl1210a471k.step` / `rl1210a471k.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/8589834528262029312) (4 pp, sha256 `e8cd1faffba96262`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/rl1210a471k-datasheet.pdf)