# HoLRMC2512-2W-1mR-1%

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

HoLRMC2512-2W-1mR-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 | First plated end terminal of the 2512 alloy current-sense resistor (1 mΩ, 1%, 2 W at 70℃, max rated current 44A); the part is non-polarized and interchangeable with the other terminal. |
| 2 | 2 | passive | Second plated end terminal of the 2512 alloy current-sense resistor (1 mΩ, 1%, 2 W at 70℃, max rated current 44A); the recommended pad is A 4.0 mm, L 4.1 mm, B 2.1 mm with separate sensing traces. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Milliohm |
| Package | 2512 |
| Category | Resistors |
| 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 |
|---|---|---|---|---|---|---|---|
| Resistance tolerance |  | -1 |  | 1 | % |  | 2 |
| Temperature coefficient of resistance (TCR) |  |  |  | 75 | ppm/℃ | 20℃~60℃ | 3 |
| Rated power |  |  |  | 2 | W | Rated at 70℃ ambient; derate above 70℃ per power drop curve | 3 |
| Max. rated current |  |  |  | 44 | A |  | 3 |
| Operating temperature range |  | -55 |  | 170 | ℃ |  | 3 |
| Nominal resistance (from part number 1mR) | R |  | 1 |  | mR |  | 2 |

## CAD (KiCad official)

- Symbol: `HoLRMC2512-2W-1mR-1%`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `holrmc2512-2w-1mr-1-etched.step` / `holrmc2512-2w-1mr-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `holrmc2512-2w-1mr-1.step` / `holrmc2512-2w-1mr-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/8590225980930625536) (5 pp, sha256 `096f79b45b3c3719`, retrieved 2026-11-05, 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/holrmc2512-2w-1mr-1-datasheet.pdf)