# HoYLR2512-3W-75mR-1%

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

HoYLR2512-3W-75mR-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 end terminal of the 75 mΩ ±1% alloy current-sense resistor (rated 3W, max 6.32A); terminal width C is 0.9±0.2 mm, interchangeable with the other terminal. |
| 2 | 2 | passive | Other end terminal of the 75 mΩ ±1% alloy current-sense resistor (rated 3W, max 6.32A); terminal width C is 0.9±0.2 mm, interchangeable with the first terminal. |

## 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 |
|---|---|---|---|---|---|---|---|
| Nominal resistance |  |  | 75 |  | mR |  | 3 |
| Resistance tolerance |  | -1 |  | 1 | % |  | 3 |
| Temperature coefficient of resistance | TCR | -50 |  | 50 | ppm/℃ |  | 3 |
| Rated power | P |  |  | 3 | W |  | 3 |
| Maximum rated current |  |  |  | 6.32 | A |  | 3 |
| Operating temperature range |  | -55 |  | 170 | ℃ |  | 3 |
| Insulation resistance |  | 100 |  |  | MΩ | 100 V ±15 V DC applied between electrode and substrate, held 60 s | 5 |
| Temperature coefficient test ΔR (relative) | ΔR | -1 |  | 1 | % | +25℃ to +125℃ | 5 |
| Temperature coefficient test ΔR (offset) | ΔR | -0.05 |  | 0.05 | mΩ | +25℃ to +125℃ | 5 |
| Solder heat resistance ΔR (relative) | ΔR | -0.5 |  | 0.5 | % | 270 ℃ ±5 ℃ solder bath, 10 s ±1 s | 5 |
| Solder heat resistance ΔR (offset) | ΔR | -0.05 |  | 0.05 | mΩ | 270 ℃ ±5 ℃ solder bath, 10 s ±1 s | 5 |
| Bending test ΔR (relative) | ΔR | -0.5 |  | 0.5 | % | Bend distance 2 mm, hold 60 s ±5 s | 5 |
| Bending test ΔR (offset) | ΔR | -0.05 |  | 0.05 | mΩ | Bend distance 2 mm, hold 60 s ±5 s | 5 |
| Temperature cycling ΔR (relative) | ΔR | -0.5 |  | 0.5 | % | -55 ℃ 30 min to room temp 5 min to 155 ℃ 30 min, 1000 cycles | 5 |
| Temperature cycling ΔR (offset) | ΔR | -0.05 |  | 0.05 | mΩ | -55 ℃ 30 min to room temp 5 min to 155 ℃ 30 min, 1000 cycles | 5 |
| Long-term low-temperature storage ΔR (relative) | ΔR | -0.5 |  | 0.5 | % | -55 ℃, 1000 h | 5 |
| Long-term low-temperature storage ΔR (offset) | ΔR | -0.05 |  | 0.05 | mΩ | -55 ℃, 1000 h | 5 |
| Long-term high-temperature storage ΔR (relative) | ΔR | -1 |  | 1 | % | 170 ℃, 1000 h | 5 |
| Long-term high-temperature storage ΔR (offset) | ΔR | -0.05 |  | 0.05 | mΩ | 170 ℃, 1000 h | 5 |
| Long-term endurance ΔR (relative) | ΔR | -1 |  | 1 | % | 70 ℃ ±2 ℃, 1000 h, rated power, 1.5 h on / 0.5 h off | 5 |
| Long-term endurance ΔR (offset) | ΔR | -0.05 |  | 0.05 | mΩ | 70 ℃ ±2 ℃, 1000 h, rated power, 1.5 h on / 0.5 h off | 5 |
| Long-term damp heat ΔR (relative) | ΔR | -1 |  | 1 | % | 85 ℃ ±2 ℃, 85% ±3% RH, 1000 h, rated power, 1.5 h on / 0.5 h off | 5 |
| Long-term damp heat ΔR (offset) | ΔR | -0.05 |  | 0.05 | mΩ | 85 ℃ ±2 ℃, 85% ±3% RH, 1000 h, rated power, 1.5 h on / 0.5 h off | 5 |

## CAD (KiCad official)

- Symbol: `HoYLR2512-3W-75mR-1%`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `hoylr2512-3w-75mr-1-etched.step` / `hoylr2512-3w-75mr-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hoylr2512-3w-75mr-1.step` / `hoylr2512-3w-75mr-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/8767449452875255808) (7 pp, sha256 `d153ebc1f513b716`, 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/hoylr2512-3w-75mr-1-datasheet.pdf)