# HoLRT2512-2W-1R-1%

**Milliohm** · Current Sense Resistors / Shunt Resistors · 2512

HoLRT2512-2W-1R-1% from Milliohm, in a 2512. 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 terminal of the 2512 chip resistor (Sn-plated end electrode); the part is non-polarized, rated 2W at 70°C with max. rated current 4.47A and max. overload current 10.00A. |
| 2 | 2 | passive | Second terminal of the 2512 chip resistor (Sn-plated end electrode); interchangeable with the other terminal, operating temperature range −55℃ to +155℃. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Milliohm |
| Package | 2512 |
| 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 |  |  | 1 |  | Ω | nominal, catalog attribute (LCSC C5127856) | catalog |
| Tolerance |  | -1 |  | 1 | % | catalog attribute (LCSC C5127856) | catalog |
| Rated power |  |  |  | 2 | W | catalog attribute (LCSC C5127856) | catalog |
| Rated current |  |  |  | 4.47 | A | catalog attribute (LCSC C5127856) | catalog |
| Temperature coefficient | TCR | -50 |  | 50 | ppm/°C | catalog description (LCSC C5127856) | catalog |

## CAD (KiCad official)

- Symbol: `HoLRT2512-2W-1R-1%`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `holrt2512-2w-1r-1-etched.step` / `holrt2512-2w-1r-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `holrt2512-2w-1r-1.step` / `holrt2512-2w-1r-1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Milliohm datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836628127879168) (13 pp, sha256 `22a8ead372ff71af`, retrieved 2026-10-19, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/holrt2512-2w-1r-1-datasheet.pdf)