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Contents

README

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HoJLR2512-2W-9mR-1%

Milliohm · Current Sense Resistors / Shunt Resistors · 2512

HoJLR2512-2W-9mR-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 (2W, 9mR, ±1%), rated current I=√(P/R) with operating range -50°C to +170°C.
2 2 passive Second terminal of the 2512 alloy current-sense resistor (2W, 9mR, ±1%), non-polarized and interchangeable with the other terminal, with recommended pad width A=4.0mm and pad length L=4.1mm.

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 (suffix 1%, code F) -1 1 % MPN suffix 1%; tolerance code F=±1% 1
Temperature coefficient of resistance TCR -50 50 ppm/℃ Resistance 2mR~500mR 2
Insulation resistance 100 MΩ 100V DC for 1 minute 4
Operating temperature range -50 170 ℃ Power derated above 70℃ per power curve 2
Resistance change, load life ΔR -1 1 % 1000 hours at rated power, 70℃, 1.5 hours ON, 0.5 hour OFF 4
Resistance change, short time overload ΔR -1 1 % 5 X rated power for 5s 4
Resistance change, moisture no load ΔR -1 1 % 85℃, 85%RH, 1000hrs 4
Resistance change, temperature cycle ΔR -1 1 % -55℃ & +155℃, 100 cycles, 15min per extreme condition 4
Resistance change, resistance to soldering heat ΔR -0.5 0.5 % 260±5℃ for 10±1 sec 4
Resistance change, high temperature exposure ΔR -1 1 % 155℃, 1000hrs 4
Resistance change, low temperature storage ΔR -1 1 % -55℃, 1000hrs 4
Resistance change, substrate bending ΔR -0.5 0.5 % Bending width 2mm 4
Rated power P 2 W 2W variant; derated above 70℃ ambient per power curve 2

CAD (KiCad official)

  • Symbol: HoJLR2512-2W-9mR-1%
  • Footprint: Resistor_SMD:R_2512_6332Metric
  • 3D model: 2512 (KiCad packages3D, STEP)
  • 3D model files: hojlr2512-2w-9mr-1-etched.step / hojlr2512-2w-9mr-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hojlr2512-2w-9mr-1.step / hojlr2512-2w-9mr-1.glb are 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, 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