component
HoYLR2512-3W-300mR-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
markdownHoYLR2512-3W-300mR-1%
Milliohm · Current Sense Resistors / Shunt Resistors · 2512
HoYLR2512-3W-300mR-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 300 mR ±1% alloy current-sense resistor, rated 3 W and 3.16 A maximum, with terminal width C 0.9±0.2 mm and recommended pad 4.0±0.1 mm. |
| 2 | 2 | passive | Second terminal of the 300 mR ±1% alloy current-sense resistor, rated 3 W and 3.16 A maximum, operating from -55°C to +170°C. |
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 | % | 3 | |||
| Temperature coefficient of resistance (温漂) | -50 | 50 | ppm/℃ | 3 | |||
| Short-time overload resistance change (ΔR, plus ±0.05 mΩ absolute term) | ΔR | -1 | 1 | % | 5× rated power, held 5 s | 5 | |
| Heat resistance resistance change (ΔR, plus ±0.05 mΩ absolute term) | ΔR | -0.5 | 0.5 | % | 270±5℃ tin bath, held 10±1 s | 5 | |
| Bending test resistance change (ΔR, plus ±0.05 mΩ absolute term) | ΔR | -0.5 | 0.5 | % | Bend distance 2 mm, hold 60±5 s | 5 | |
| Long-term high temperature resistance change (ΔR, plus ±0.05 mΩ absolute term) | ΔR | -1 | 1 | % | 170℃, 1000 h | 5 | |
| Long-term low temperature resistance change (ΔR, plus ±0.05 mΩ absolute term) | ΔR | -0.5 | 0.5 | % | -55℃, 1000 h | 5 | |
| Temperature cycling resistance change (ΔR, plus ±0.05 mΩ absolute term) | ΔR | -0.5 | 0.5 | % | -55℃ 30 min to room temp 5 min to 155℃ 30 min, 1000 cycles | 5 | |
| Long-term endurance resistance change (ΔR, plus ±0.05 mΩ absolute term) | ΔR | -1 | 1 | % | 70±2℃, 1000 h, rated power, 1.5 h on / 0.5 h off | 5 | |
| Damp heat resistance change (ΔR, plus ±0.05 mΩ absolute term) | ΔR | -1 | 1 | % | 85±2℃, 85±3%RH, 1000 h, rated power, 1.5 h on / 0.5 h off | 5 | |
| Insulation resistance | 100 | MΩ | 100 V±15 V DC applied between electrode and substrate for 60 s | 5 | |||
| Solderability (electrode tin coverage) | 95 | % | 245±5℃ tin bath, 2±0.5 s | 5 | |||
| Operating temperature range | -55 | 170 | ℃ | 3 | |||
| Maximum rated current | 3.16 | A | 3 | ||||
| Rated power | P | 3 | W | 3 | |||
| Nominal resistance | R | 300 | mR | 3 |
CAD (KiCad official)
- Symbol:
HoYLR2512-3W-300mR-1% - Footprint:
Resistor_SMD:R_2512_6332Metric - 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files:
hoylr2512-3w-300mr-1-etched.step/hoylr2512-3w-300mr-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hoylr2512-3w-300mr-1.step/hoylr2512-3w-300mr-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Milliohm datasheet (7 pp, sha256
943426760fb4416d, 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, 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).