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RL1812A410K-142A

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RUILON Shenzhen Ruilongyuan Elec Varistors, 1812. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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RL1812A410K-142A

RUILON Shenzhen Ruilongyuan Elec · Varistors · 1812

RL1812A410K-142A 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 (end termination, WB 0.60±0.25 mm); bidirectional and symmetrical V/I characteristics, varistor voltage 36-45 V at 1 mA, max 30 Vdc / 21 Vac.
2 2 passive Varistor terminal 2 (end termination, WB 0.60±0.25 mm); interchangeable with terminal 1, max clamping voltage 72 V at 1400 A (8/20μs).

Key specifications

Parameter Value
Manufacturer RUILON Shenzhen Ruilongyuan Elec
Package 1812
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
Varistor Voltage (V1mA) V1mA 36 41 45 V 1
Standard Tolerance (part-number code K) -10 10 % 1
Max. Allowable Voltage (AC) VAC 21 V 1
Max. Allowable Voltage (DC) VDC 30 V 1
Max. Energy (10/1000μs) 3.6 J 10/1000μs 1
Max. Clamping Voltage VC 72 V 8/20μs 1
Max. Withstanding Surge Current I 1400 A 8/20μs 1
Leakage Current IL 30 μA 1
Operating Temperature Range -55 125 ℃ 1

CAD (KiCad official)

  • Symbol: RL1812A410K-142A
  • Footprint: Resistor_SMD:R_1812_4532Metric
  • 3D model: 1812 (KiCad packages3D, STEP)
  • 3D model files: rl1812a410k-142a-etched.step / rl1812a410k-142a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rl1812a410k-142a.step / rl1812a410k-142a.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 2178ef941f5bbf92, retrieved 2026-10-18, 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