component
RL1206A300K
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
markdownRL1206A300K
RUILON Shenzhen Ruilongyuan Elec · Varistors · 1206
RL1206A300K 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 | One of two interchangeable end terminations (WB 0.50±0.20 mm) of the bidirectional multilayer varistor; the RL1206A300K has 28.8~36 V varistor voltage at 1 mA, 24 VDC / 18 VAC maximum allowable voltage, and 79 V maximum clamping at 100 A (8/20μs). |
| 2 | 2 | passive | Second interchangeable end termination of the bidirectional, symmetrical varistor; the recommended pad layout uses two pads with a 2.0 mm gap (K) and a 4.0 mm overall span (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 tolerance (part code K) | -10 | 10 | % | Standard Tolerance K: ±10% | 1 | ||
| Varistor voltage | V1mA | 28.8 | 36 | V | 2 | ||
| Max. allowable AC voltage | VAC | 18 | V | 2 | |||
| Max. allowable DC voltage | VDC | 24 | V | 2 | |||
| Max. energy | 0.5 | J | 10/1000μs | 2 | |||
| Max. clamping voltage | VC | 79 | V | 8/20μs, IP(A) = 5 | 2 | ||
| Withstanding surge current | I | 100 | 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 | -10 | 10 | % | Working Voltage, 85ºC, 1000 hrs | 2 | ||
| Operating temperature range | -55 | 125 | ℃ | 1 | |||
| Storage temperature range | 5 | 40 | ºC | Storage condition, taping package | 3 |
CAD (KiCad official)
- Symbol:
RL1206A300K - Footprint:
Resistor_SMD:R_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
rl1206a300k-etched.step/rl1206a300k-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rl1206a300k.step/rl1206a300k.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
d28fdd03e354ca9c, 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).