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Contents

README

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RL1812A240K

RUILON Shenzhen Ruilongyuan Elec · Varistors · 1812

RL1812A240K from RUILON Shenzhen Ruilongyuan Elec, in a 1812. 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 1 of a bidirectional, symmetrical V/I device (varistor voltage 21.6~27V at 1mA, max 18Vdc / 13Vac, max clamping 54V at 800A 8/20μs).
2 2 passive Varistor terminal 2 of a bidirectional, symmetrical V/I device, interchangeable with terminal 1 (varistor voltage 21.6~27V at 1mA, max 18Vdc / 13Vac).

Key specifications

Parameter Value
Manufacturer RUILON Shenzhen Ruilongyuan Elec
Package 1812
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: RL1812A240K
  • Footprint: Resistor_SMD:R_1812_4532Metric
  • 3D model: 1812 (KiCad packages3D, STEP)
  • 3D model files: rl1812a240k-etched.step / rl1812a240k-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rl1812a240k.step / rl1812a240k.glb are the bare package body.

Provenance

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

  • Datasheet: RUILON Shenzhen Ruilongyuan Elec datasheet (4 pp, sha256 4d1898366bddbee6, retrieved 2026-10-12, 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