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RL1210A561K

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RUILON Shenzhen Ruilongyuan Elec Varistors, 1210. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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RL1210A561K

RUILON Shenzhen Ruilongyuan Elec · Varistors · 1210

RL1210A561K from RUILON Shenzhen Ruilongyuan Elec, in a 1210. 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 First terminal of the bidirectional, symmetrical varistor (polarity-independent), rated 350 VAC / 455 VDC max allowable voltage with 504~616 V varistor voltage at 1 mA.
2 2 passive Second terminal of the bidirectional, symmetrical varistor (polarity-independent), with 925 V max clamping voltage at 5 A (8/20μs) and 50 A withstanding surge current.

Key specifications

Parameter Value
Manufacturer RUILON Shenzhen Ruilongyuan Elec
Package 1210
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 504 616 V 2
Varistor voltage tolerance (code K) -10 10 % 1
Max. allowable voltage (AC) VAC 350 V 2
Max. allowable voltage (DC) VDC 455 V 2
Max. energy 1.2 J 10/1000μs 2
Max. clamping voltage VC 925 V 8/20μs, IP = 5 A 2
Withstanding surge current I 50 A 8/20μs 2
Operating temperature range -55 125 ℃ 1
Storage temperature range 5 40 ℃ storage 1

CAD (KiCad official)

  • Symbol: RL1210A561K
  • Footprint: Resistor_SMD:R_1210_3225Metric
  • 3D model: 1210 (KiCad packages3D, STEP)
  • 3D model files: rl1210a561k-etched.step / rl1210a561k-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rl1210a561k.step / rl1210a561k.glb are the bare package body.

Provenance

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

  • Datasheet: RUILON Shenzhen Ruilongyuan Elec datasheet (5 pp, sha256 484c6911b489b2f4, retrieved 2026-10-17, 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