# LRE0805-2CR050F5

**RALEC** · Current Sense Resistors / Shunt Resistors · 0805

LRE0805-2CR050F5 from RALEC, in a 0805. 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 the two terminals (MPN code 2 = 2 terminals) of the 0805 metal-alloy low-resistance resistor; the bottom electrode has a current terminal and a voltage terminal measurement point on this end, spaced 1.65±0.05 mm (A) from the other end. |
| 2 | 2 | passive | The other terminal of the 2-terminal 0805 resistor, interchangeable with the first terminal; the datasheet gives it a current and a voltage measurement point, with 0.70±0.05 mm (B) between them, and matte Sn plating over Ni. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RALEC |
| Package | 0805 |
| Category | Resistors |
| Pins | 2 |

## Electrical characteristics

Limits from the LCSC catalog entry for this part (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Resistance |  |  | 50 |  | mΩ | nominal, catalog attribute (LCSC C5141277) | catalog |
| Tolerance |  | -1 |  | 1 | % | catalog attribute (LCSC C5141277) | catalog |
| Rated power |  |  |  | 500 | mW | catalog attribute (LCSC C5141277) | catalog |

## CAD (KiCad official)

- Symbol: `LRE0805-2CR050F5`
- Footprint: `Resistor_SMD:R_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `lre0805-2cr050f5-etched.step` / `lre0805-2cr050f5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lre0805-2cr050f5.step` / `lre0805-2cr050f5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [RALEC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590279234830184448) (16 pp, sha256 `c71bbda6262f1d13`, retrieved 2026-11-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).

[Datasheet PDF](docs/lre0805-2cr050f5-datasheet.pdf)