component

RL1210A271K

Public Made by Adom

by adom

RUILON Shenzhen Ruilongyuan Elec Varistors, 1210. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
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rl1210a271k-etched.glb Publish 0.1.0 · Ray 21d ago
rl1210a271k-etched.step rl1210a271k: factory component page (tier=lcsc) · Ray 21d ago
rl1210a271k-hero.glb rl1210a271k: hero GLB from the etched model (keeps the MPN mark) · Ray 21d ago
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rl1210a271k.kicad_sym rl1210a271k: KiCad Device:Varistor symbol instead of a box (two-terminal passive) · Ray 11d ago
rl1210a271k.lbr rl1210a271k: KiCad Device:Varistor symbol instead of a box (two-terminal passive) · Ray 11d ago
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RL1210A271K

RUILON Shenzhen Ruilongyuan Elec · Varistors · 1210

RL1210A271K 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 Terminal 1 of an unpolarised resistor; either orientation.
2 2 passive Terminal 2 of an unpolarised resistor; either orientation.

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 243 297 V V1mA 2
Varistor voltage tolerance (K suffix) -10 10 % K: ±10% 1
Max allowable voltage (AC) VAC 175 V 2
Max allowable voltage (DC) VDC 225 V 2
Max energy 0.8 J 10/1000μs 2
Max clamping voltage VC 475 V 8/20μs, IP 5 A 2
Withstanding surge current I 250 A 8/20μs 2
Varistor voltage change, bias humidity VV/VV -10 10 % 90%RH, 40ºC, working voltage, 1000 hrs 2
Varistor voltage change, thermal shock VV/VV -10 10 % 40ºC to 85ºC, 30 min cycle, 5 cycles 2
Varistor voltage change, full load VV/VV -10 10 % working voltage, 85ºC, 1000 hrs 2
Response time 1 ns <1ns 2
Operating temperature range -55 125 °C operating temperature range (feature list) 1
Storage temperature 5 40 °C taping package storage condition 2
Storage time 12 months taping package storage condition 2
Max heat shock temperature 100 °C during soldering process, avoid rapid heating or cooling 3
Soldering gun tip temperature 280 °C soldering gun under 30W, 3 seconds 3
Reflow preheat temperature TS 150 200 °C Pb-free assembly, preheat 3
Reflow preheat time ts 60 180 s Pb-free assembly, preheat 3
Reflow time above liquidus tL 60 150 s Pb-free assembly, liquidus 217°C 3
Reflow peak temperature TP 260 260 °C Pb-free assembly, printed as 260 +0/-5°C 3
Reflow time within 5°C of peak tp 20 40 s Pb-free assembly 3
Time 25°C to peak temperature 8 min Pb-free assembly 3

CAD (KiCad official)

  • Symbol: RL1210A271K
  • Footprint: Resistor_SMD:R_1210_3225Metric
  • 3D model: 1210 (KiCad packages3D, STEP)
  • 3D model files: rl1210a271k-etched.step / rl1210a271k-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rl1210a271k.step / rl1210a271k.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 e8cd1faffba96262, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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