# RL0402E024M250K

**RUILON Shenzhen Ruilongyuan Elec** · Varistors · 0402

RL0402E024M250K from RUILON Shenzhen Ruilongyuan Elec, in a 0402. 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 | 0402 |
| 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 |
|---|---|---|---|---|---|---|---|
| Max. operating voltage (rated voltage) | VDC |  |  | 24 | V | Max. operating voltage (DC), RL0402E024M250K | 3 |
| Max. leakage current |  |  |  | 1 | uA | At max. operating voltage (Note 1) | 3 |
| Operation range |  | -40 |  | 85 | °C | Operation range | 4 |
| Capacitance tolerance (M) |  | -30 |  | 30 | % | Decoded from part-number legend: M = ±30% capacitance | 2 |
| Capacitance (Cp) | Cp |  | 2.5 |  | pF | @1MHz, 1Vrms (Note 2) | 3 |
| Trigger voltage |  |  | 200 |  | V |  | 3 |
| Clamping voltage |  |  | 50 |  | V |  | 3 |
| ESD capability, contact discharge |  | -8 |  | 8 | kV | IEC 61000-4-2 contact discharge, level 4, 10 times in 10 s, ±8 kV | 4 |
| Leakage current after reflow soldering |  |  |  | 10 | uA | After reflow soldering (item 5) | 4 |

## CAD (KiCad official)

- Symbol: `RL0402E024M250K`
- Footprint: `Resistor_SMD:R_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `rl0402e024m250k-etched.step` / `rl0402e024m250k-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rl0402e024m250k.step` / `rl0402e024m250k.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [RUILON Shenzhen Ruilongyuan Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586172513697615872) (7 pp, sha256 `4986f3f7e248068a`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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).

[Datasheet PDF](docs/rl0402e024m250k-datasheet.pdf)