component
HoJLR2512-3W-27mR-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
markdownHoJLR2512-3W-27mR-1%
Milliohm · Current Sense Resistors / Shunt Resistors · 2512
HoJLR2512-3W-27mR-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 resistor terminal (end electrode, C = 0.9±0.2 mm) of the 2512 alloy resistor, rated 3W for the 3W variant, solder pad A 4.0 x L 4.1 mm. |
| 2 | 2 | passive | Other resistor terminal (end electrode, C = 0.9±0.2 mm), interchangeable with the first because the part is a non-polarized, non-inductive alloy resistor; the pad drawing shows a separate sensing trace for Kelvin sensing. |
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 (accuracy class F = ±1%) | -1 | 1 | % | Part-numbering table: F = ±1%; MPN suffix 1% | 1 | ||
| Temperature coefficient of resistance | TCR | -50 | 50 | ppm/℃ | 2mR~500mR resistance range (27mR within range) | 2 | |
| Rated power | P | 3 | W | 3W variant of HoJLR2512 series, 0.5mR~500mR | 2 | ||
| Operating temperature range | -50 | 170 | ℃ | Power derated from 70℃ per power curve | 2 | ||
| Load life resistance change | -1 | 1 | % | 1000 hours at rated power, 70℃, 1.5 h ON / 0.5 h OFF | 4 | ||
| Short time overload resistance change | -1 | 1 | % | 5 X rated power for 5 s | 4 | ||
| Moisture (no load) resistance change | -1 | 1 | % | 85℃, 85%RH, 1000 hrs | 4 | ||
| Temperature cycle resistance change | -1 | 1 | % | -55℃ & +155℃, 100 cycles, 15 min per extreme condition | 4 | ||
| Resistance to soldering heat resistance change | -0.5 | 0.5 | % | 260±5℃ for 10±1 sec | 4 | ||
| High temperature exposure resistance change | -1 | 1 | % | 155℃, 1000 hrs | 4 | ||
| Low temperature storage resistance change | -1 | 1 | % | -55℃, 1000 hrs | 4 | ||
| Substrate bending resistance change | -0.5 | 0.5 | % | Bending width 2mm | 4 | ||
| Insulation resistance | 100 | MΩ | 100V DC for 1 minute | 4 |
CAD (KiCad official)
- Symbol:
HoJLR2512-3W-27mR-1% - Footprint:
Resistor_SMD:R_2512_6332Metric - 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files:
hojlr2512-3w-27mr-1-etched.step/hojlr2512-3w-27mr-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hojlr2512-3w-27mr-1.step/hojlr2512-3w-27mr-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Milliohm datasheet (4 pp, sha256
3224518dbc8bdc85, retrieved 2026-11-06, 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).