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RL1210A240K
Public Made by Adomby adom
RUILON Shenzhen Ruilongyuan Elec Varistors, 1210. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownRL1210A240K
RUILON Shenzhen Ruilongyuan Elec · Varistors · 1210
RL1210A240K 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 | Terminal 1 | passive | One end termination of the bidirectional, symmetrical varistor, rated 18 VDC / 14 VAC maximum with 21.6~27 V varistor voltage at 1 mA and 59 V maximum clamping at 5 A (8/20μs). |
| 2 | Terminal 2 | passive | Other end termination of the bidirectional, symmetrical varistor (interchangeable with terminal 1), withstanding 250 A surge current (8/20μs) and 0.8 J energy (10/1000μs). |
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 | 21.6 | 27 | V | 2 | ||
| Varistor voltage tolerance | -10 | 10 | % | Varistor voltage tolerance code K | 1 | ||
| Max. allowable voltage (AC) | VAC | 14 | V | 2 | |||
| Max. allowable voltage (DC) | VDC | 18 | V | 2 | |||
| Max. clamping voltage | VC | 59 | V | 8/20μs | 2 | ||
| Max. peak current | IP | 5 | A | 2 | |||
| Max. energy | 0.8 | J | 10/1000μs | 2 | |||
| Withstanding surge current | I | 250 | A | 8/20μs | 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,30min.cycle,5 cycles | 2 | ||
| Varistor voltage change, full load voltage | -10 | 10 | % | Working Voltage,85ºC,1000 hrs | 2 | ||
| Response time | 1 | ns | 2 | ||||
| Operating temperature range | -55 | 125 | ºC | 1 | |||
| Storage temperature range | 5 | 40 | ºC | Storage | 2 | ||
| Storage relative humidity | 65 | % | Storage | 2 | |||
| Storage time | 12 | months | Taping package storage condition | 2 | |||
| Heat shock temperature limit | 100 | °C | During soldering process | 3 | |||
| Soldering gun tip temperature | 280 | °C | Soldering gun under 30W, within 3 seconds | 3 |
CAD (KiCad official)
- Symbol:
RL1210A240K - Footprint:
Resistor_SMD:R_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
rl1210a240k-etched.step/rl1210a240k-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rl1210a240k.step/rl1210a240k.glbare 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 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).