component
HoLLR2512-2W-1mR-1%
Public Made by Adomby adom
Milliohm Current Sense Resistors / Shunt Resistors, 2512. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownHoLLR2512-2W-1mR-1%
Milliohm · Current Sense Resistors / Shunt Resistors · 2512
HoLLR2512-2W-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 terminal of the 2512 alloy current-sense resistor (1 mΩ ±1% for this MPN), which is non-polarized and rated 2 W at 70°C ambient with derating to zero at 170°C. |
| 2 | 2 | passive | Second terminal of the 2512 alloy current-sense resistor, which is non-polarized and has a recommended solder pad length of 4.1±0.1 mm with a 2.1±0.1 mm gap between pads, and a Kelvin sensing trace is drawn at the inner pad edge. |
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 violating nothing: rows below are limits for HoLLR2512-2W-1mR-1% | R | 1 | mΩ | MPN value 1mR; family range 0.5mΩ~500mΩ | 1 | ||
| Resistance tolerance (code F) | -1 | 1 | % | Tolerance code F = ±1% | 1 | ||
| Temperature coefficient of resistance | TCR | -275 | 275 | ppm/°C | R≦1mΩ | 2 | |
| Rated power | P | 2 | W | 2W part; rated at 70°C, derate above 70°C per curve | 2 | ||
| Operating temperature range | T | -55 | 170 | °C | 2 | ||
| Solderability (electrode new-solder area) | 95 | % | Immersed 245±5°C for 3±1 s | 6 | |||
| Insulation resistance | 100 | MΩ | 100 VDC applied 1 min, electrode to protective layer and to substrate | 6 | |||
| Biased humidity resistance change | ΔR/R | 0.5 | % | 85±5°C, 85±5%RH, rated current 90 min ON / 30 min OFF, 1000 h | 5 | ||
| Temperature cycling resistance change | ΔR/R | 0.5 | % | -55°C to +125°C, 1000 cycles | 5 | ||
| Low temperature exposure resistance change | ΔR/R | 0.5 | % | -55±2°C, 1000 h | 5 | ||
| High temperature exposure resistance change | ΔR/R | 1 | % | 170°C, 1000 h | 6 | ||
| Load life resistance change | ΔR/R | 1 | % | 70±2°C, rated current, 90 min ON / 30 min OFF, 1000 h | 6 | ||
| Resistance to solder heat resistance change | ΔR/R | 0.5 | % | 260±5°C solder bath, 10±1 s | 6 | ||
| Resistance to solvent resistance change | ΔR/R | 0.5 | % | Isopropanol 20-25°C, 60±5 s | 6 | ||
| Joint strength of solder resistance change | ΔR/R | 0.5 | % | Load applied at centre of bending test board | 6 |
CAD (KiCad official)
- Symbol:
HoLLR2512-2W-1mR-1% - Footprint:
Resistor_SMD:R_2512_6332Metric - 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files:
hollr2512-2w-1mr-1-etched.step/hollr2512-2w-1mr-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hollr2512-2w-1mr-1.step/hollr2512-2w-1mr-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Milliohm datasheet (7 pp, sha256
5dac9ede82062791, retrieved 2026-11-07, 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).