component
LR2512D-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
markdownLR2512D-2W-1mR-1%
Milliohm · Current Sense Resistors / Shunt Resistors · 2512
LR2512D-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 Ni/Sn-plated end terminal of the 2512D alloy current-sense resistor (1 mΩ, 2 W, ±1%), with recommended pad b = 3.15 mm for 0.25~1 mΩ values. |
| 2 | 2 | passive | Second Ni/Sn-plated end terminal of the 2512D alloy current-sense resistor, non-polarized and interchangeable with the first, with a 1.15 mm pad gap L for 0.25~1 mΩ values. |
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% option) | -1 | 1 | % | Accuracy class 1% printed for this MPN | 2 | ||
| Load life (1000 h at rated power) | -1 | 1 | % | 1000 hours at rated power, 70℃, 1.5 hours ON, 0.5 hour OFF | 4 | ||
| Short time overload | -0.5 | 0.5 | % | 5 X rated power for 5s | 4 | ||
| Moisture, no load | -1 | 1 | % | 85℃, 85%RH, 1000hrs | 4 | ||
| Temperature cycle | -0.5 | 0.5 | % | -55℃ & +155℃, 300 cycles, 15 min per extreme condition | 4 | ||
| Resistance to soldering heat | -0.5 | 0.5 | % | 260±5℃ for 20±1 sec | 4 | ||
| High temperature exposure | -1 | 1 | % | 170℃, 1000hrs | 4 | ||
| Low temperature storage | -0.5 | 0.5 | % | -55℃, 1000hrs | 4 | ||
| Substrate bending | -1 | 1 | % | Bending width 2mm | 4 | ||
| Insulation resistance | 100 | MΩ | 100V DC for 1 minute | 4 | |||
| Temperature coefficient of resistance (TCR) | TCR | 50 | ppm/℃ | Printed as ≤25-50 ppm/℃ for the whole series; test +25℃ ~ +125℃ (reference 4.0) | 1 | ||
| Operating temperature range | -55 | 170 | ℃ | Operating Temperature Range | 2 | ||
| Nominal resistance | R | 1 | mR | Value from MPN LR2512D-2W-1mR-1% | 2 | ||
| Rated power | P | 2 | W | 2W option for this MPN; power derating curve referenced at 70℃ ambient | 2 |
CAD (KiCad official)
- Symbol:
LR2512D-2W-1mR-1% - Footprint:
Resistor_SMD:R_2512_6332Metric - 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files:
lr2512d-2w-1mr-1-etched.step/lr2512d-2w-1mr-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lr2512d-2w-1mr-1.step/lr2512d-2w-1mr-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Milliohm datasheet (6 pp, sha256
adcf1fdda6b012e8, 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).