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RL1206A440K-201A
Public Made by Adomby adom
RUILON Shenzhen Ruilongyuan Elec Varistors, 1206. 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
markdownRL1206A440K-201A
RUILON Shenzhen Ruilongyuan Elec · Varistors · 1206
RL1206A440K-201A from RUILON Shenzhen Ruilongyuan Elec, in a 1206. 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 | First terminal of the bidirectional, symmetrical multilayer metal oxide varistor (varistor voltage 39.6-49.5 V at 1 mA, max allowable 28 VAC / 33 VDC). |
| 2 | 2 | passive | Second terminal of the bidirectional, symmetrical varistor, interchangeable with the first (max clamping voltage 80 V at 200 A 8/20μs, max energy 0.8 J). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RUILON Shenzhen Ruilongyuan Elec |
| Package | 1206 |
| 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 range) | V1mA | 39.6 | 49.5 | V | 1 | ||
| Leakage current | IL | 30 | μA | 1 | |||
| Max. allowable voltage (AC) | VAC | 28 | V | 1 | |||
| Max. allowable voltage (DC) | VDC | 33 | V | 1 | |||
| Max. energy | 0.8 | J | 10/1000μs | 1 | |||
| Max. clamping voltage | VC | 80 | V | 8/20μs | 1 | ||
| Max. withstanding surge current | I | 200 | A | 8/20μs | 1 | ||
| Varistor voltage tolerance (K) | -10 | 10 | % | 1 | |||
| Varistor voltage nominal (part code 44) | 44 | V | 1 | ||||
| Operating voltage | 44 | Vdc | 1 | ||||
| Operating temperature range | -55 | 125 | ℃ | 1 | |||
| Varistor voltage change after bias humidity | -10 | 10 | % | 90%RH, 40ºC, Working Voltage, 1000 hrs | 2 | ||
| Varistor voltage change after thermal shock | -10 | 10 | % | -40ºC to 85ºC, 30min. cycle, 5 cycles | 2 | ||
| Varistor voltage change after full load voltage | -10 | 10 | % | Working Voltage, 85ºC, 1000 hrs | 2 | ||
| Response time | 1 | ns | 2 |
CAD (KiCad official)
- Symbol:
RL1206A440K-201A - Footprint:
Resistor_SMD:R_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
rl1206a440k-201a-etched.step/rl1206a440k-201a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rl1206a440k-201a.step/rl1206a440k-201a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RUILON Shenzhen Ruilongyuan Elec datasheet (3 pp, sha256
0311834c8f03e178, 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).