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RL1812A340K-142A
Public Made by Adomby adom
RUILON Shenzhen Ruilongyuan Elec Varistors, 1812. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdownRL1812A340K-142A
RUILON Shenzhen Ruilongyuan Elec · Varistors · 1812
RL1812A340K-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 | 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 | 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 | 31.2 | 34 | 39 | V | 1 | |
| Varistor voltage tolerance (suffix K) | -10 | 10 | % | Standard tolerance code K | 1 | ||
| Max allowable voltage (AC) | VAC | 19 | V | 1 | |||
| Max allowable voltage (DC) | VDC | 26 | V | 1 | |||
| Max energy | 3.6 | J | 10/1000μs | 1 | |||
| Max clamping voltage | VC | 63 | 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 | |||
| Storage temperature range | 5 | 40 | ℃ | 2 | |||
| Storage relative humidity | 65 | % | Storage 5~40ºC | 2 | |||
| Bias humidity varistor voltage change | VV | -10 | 10 | % | 90%RH, 40ºC, Working Voltage, 1000 hrs | 2 | |
| Thermal shock varistor voltage change | VV | -10 | 10 | % | -40ºC to 85ºC, 30min. cycle, 5 cycles | 2 | |
| Full load voltage varistor voltage change | VV | -10 | 10 | % | Working Voltage, 85ºC, 1000 hrs | 2 | |
| Response time | 1 | ns | 2 | ||||
| Heat shock limit | 100 | ℃ | In process of soldering | 2 | |||
| Soldering gun tip temperature | 280 | ℃ | Soldering gun under 30W, within 3 seconds | 2 | |||
| Reflow peak temperature | TP | 260 | ℃ | Reflow, printed as 260 +0/-5°C | 2 |
CAD (KiCad official)
- Symbol:
RL1812A340K-142A - Footprint:
Resistor_SMD:R_1812_4532Metric - 3D model: 1812 (KiCad packages3D, STEP)
- 3D model files:
rl1812a340k-142a-etched.step/rl1812a340k-142a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rl1812a340k-142a.step/rl1812a340k-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
e8fd7460eb6cfe02, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).