# RLST23A712C

**RUILON Shenzhen Ruilongyuan Elec** · ESD And Surge Protection (TVS/ESD) · SOT-23

RLST23A712C from RUILON Shenzhen Ruilongyuan Elec, in a SOT-23. 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 | I/O | bidirectional | Protected I/O line of the bidirectional surge/ESD clamp (+12 V to -7 V line class), rated 350 W peak pulse power per line at tp = 8/20 µs and ±30 kV contact/air ESD per IEC61000-4-2. |
| 2 | I/O | bidirectional | Protected I/O line of the bidirectional surge/ESD clamp (+12 V to -7 V line class), rated 350 W peak pulse power per line at tp = 8/20 µs and ±30 kV contact/air ESD per IEC61000-4-2. |
| 3 | GND | power_in | Common GND reference of the clamp; the datasheet specifies the clamping limits between Pin3 and Pin1/Pin2 in both directions (reverse stand-off 12 V and 7 V, peak clamp 20 V and 10 V at 5 A). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RUILON Shenzhen Ruilongyuan Elec |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `RLST23A712C`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `rlst23a712c-etched.step` / `rlst23a712c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rlst23a712c.step` / `rlst23a712c.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/8757048306834907136) (4 pp, sha256 `64504ec6cfd13663`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/rlst23a712c-datasheet.pdf)