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RL0603A120K

Public Made by Adom

by adom

RUILON Shenzhen Ruilongyuan Elec Varistors, 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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RL0603A120K

RUILON Shenzhen Ruilongyuan Elec · Varistors · 0603

RL0603A120K from RUILON Shenzhen Ruilongyuan Elec, in a 0603. 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 device (polarity is not defined), with varistor voltage 10.8~16.2 V at 1 mA, max 9 VDC / 6 VAC, and 35.6 V max clamping at 1 A (8/20μs).
2 2 passive Varistor terminal 2 of a bidirectional, symmetrical device (polarity is not defined), interchangeable with terminal 1, with 20 A withstanding surge current (8/20μs) and 0.1 J max energy (10/1000μs).

Key specifications

Parameter Value
Manufacturer RUILON Shenzhen Ruilongyuan Elec
Package 0603
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 (RL0603A120K) V1mA 10.8 16.2 V 2
Varistor voltage tolerance (suffix K) -10 10 % 1
Max. allowable voltage AC 6 V 2
Max. allowable voltage DC VDC 9 V 2
Max. energy (10/1000 us) 0.1 J 10/1000 us 2
Max. clamping voltage (8/20 us) VC 35.6 V 8/20 us; IP(A)=1 2
Withstanding surge current (8/20 us) I 20 A 8/20 us 2
Varistor voltage change, bias humidity -10 10 % 90%RH, 40ºC, Working Voltage, 1000 hrs 2
Varistor voltage change, thermal shock -10 10 % -40ºC to 85ºC, 30 min. cycle, 5 cycles 2
Varistor voltage change, full load voltage -10 10 % Working Voltage, 85ºC, 1000 hrs 2
Operating temperature range -55 125 ℃ 1
Storage temperature 5 40 ºC Storage 2
Storage relative humidity 65 % Storage 2
Storage time 12 months Storage 2
Soldering gun tip temperature 280 ℃ Soldering gun, within 3 s, 30 W 3
Heat shock limit 100 °C 3
Reflow Ts(min) preheat temperature Ts(min) 150 °C Pb-free reflow 3
Reflow Ts(max) preheat temperature Ts(max) 200 °C Pb-free reflow 3
Reflow preheat time ts ts 60 180 s Pb-free reflow, Ts(min) to Ts(max) 3
Reflow average ramp-up rate (Liquidus TL to peak) 3 °C/s Pb-free reflow 3
Reflow time above liquidus tL 60 150 s Pb-free reflow 3
Reflow ramp-down rate 6 °C/s Pb-free reflow 3
Reflow time 25°C to peak temperature 8 min Pb-free reflow 3
Reflow time within 5°C of peak temperature tp 20 40 s Pb-free reflow 3
Reflow liquidus temperature (TL) TL 217 °C Pb-free reflow 3
Reflow peak temperature (TP) TP 260 °C Pb-free reflow, +0/-5 °C 3

CAD (KiCad official)

  • Symbol: RL0603A120K
  • Footprint: Resistor_SMD:R_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: rl0603a120k-etched.step / rl0603a120k-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rl0603a120k.step / rl0603a120k.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 57dffee942a9641e, 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