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RL1812A410K-142A
Public Made by Adomby adom
RUILON Shenzhen Ruilongyuan Elec Varistors, 1812. 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
markdownRL1812A410K-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rl1812a410k-142a.step/rl1812a410k-142a.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
2178ef941f5bbf92, retrieved 2026-10-18, 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).