component
RL1210A391K
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
markdownRL1210A391K
RUILON Shenzhen Ruilongyuan Elec · Varistors · 1210
RL1210A391K 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 | 1 | passive | Varistor terminal, bidirectional and symmetrical so interchangeable with the other terminal, rated 250 VAC / 320 VDC max continuous, 351~429 V varistor voltage at 1 mA, 675 V max clamping at 5 A (8/20μs). |
| 2 | 2 | passive | Varistor terminal, bidirectional and symmetrical so interchangeable with the other terminal, withstands 250 A surge (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 |
CAD (KiCad official)
- Symbol:
RL1210A391K - Footprint:
Resistor_SMD:R_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
rl1210a391k-etched.step/rl1210a391k-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rl1210a391k.step/rl1210a391k.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 2026-10-09, 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).