# HoLR2512D-3W-8mR-1%

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

HoLR2512D-3W-8mR-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 | Terminal 1 of an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |

## 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 |
|---|---|---|---|---|---|---|---|
| Tolerance (1% option, MPN suffix -1%) |  | -1 |  | 1 | % | Accuracy class 1% (±1%) | 2 |
| Resistance range |  | 0.25 |  | 62 | mR | HoLR2512D series range; MPN value 8mR is within range | 3 |
| Resistance (nominal, as printed in MPN) |  |  | 8 |  | mR | Part value 8mR | 2 |
| Temperature coefficient of resistance (TCR) |  |  |  | 50 | ppm/℃ | 20℃~60℃; printed as ≤25-50 (split by resistance not stated) | 3 |
| Rated power |  |  | 3 |  | W | 3W option (2W/3W/3.5W family); power derates above 70℃ per curve | 3 |
| Operating temperature range |  | -55 |  | 170 | ℃ | Operating temperature range | 3 |
| Insulation resistance |  | 100 |  |  | MΩ | 100V DC for 1 minute | 5 |
| Load life: resistance change |  | -1 |  | 1 | % | 1000 hours at rated power, 70℃, 1.5 h ON / 0.5 h OFF | 5 |
| Short time overload: resistance change |  | -0.5 |  | 0.5 | % | 2 X rated power for 5 s | 5 |
| Moisture (no load): resistance change |  | -1 |  | 1 | % | 85℃, 85%RH, 1000 hrs | 5 |
| Temperature cycle: resistance change |  | -0.5 |  | 0.5 | % | -55℃ & +155℃, 300 cycles, 15 min per extreme | 5 |
| Resistance to soldering heat: resistance change |  | -0.5 |  | 0.5 | % | 260±5℃ for 20±1 sec | 5 |
| High temperature exposure: resistance change |  | -1 |  | 1 | % | 170℃, 1000 hrs | 5 |
| Low temperature storage: resistance change |  | -0.5 |  | 0.5 | % | -55℃, 1000 hrs | 5 |
| Substrate bending: resistance change |  | -1 |  | 1 | % | Bending width 2mm | 5 |
| Solderability: solder coverage of electrode |  | 95 |  |  | % | 245±5℃, 2±0.5 sec; at least 95% of electrode surface covered with new solder | 5 |

## CAD (KiCad official)

- Symbol: `HoLR2512D-3W-8mR-1%`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `holr2512d-3w-8mr-1-etched.step` / `holr2512d-3w-8mr-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `holr2512d-3w-8mr-1.step` / `holr2512d-3w-8mr-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/8603386054758051840) (7 pp, sha256 `abf8cd96f0f116a0`, retrieved 2026-10-17, 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`, 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/holr2512d-3w-8mr-1-datasheet.pdf)