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HoYLR2512E-3W-3mR-1%

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Milliohm Current Sense Resistors / Shunt Resistors, 2512. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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HoYLR2512E-3W-3mR-1%

Milliohm · Current Sense Resistors / Shunt Resistors · 2512

HoYLR2512E-3W-3mR-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 Terminal 1 of an unpolarised resistor; either orientation.
2 2 passive Terminal 2 of an unpolarised resistor; either orientation.

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
Operating temperature range -55 170 ℃ 3
Resistance tolerance -1 1 % Tolerance letter/code 1% in part number (精度 ±1%) 3
Temperature coefficient (TCR) -50 50 ppm/℃ 3
TCR test: change in resistance ΔR (percent term) ΔR -1 1 % +25℃~+125℃, ref. TCR spec 5
TCR test: change in resistance ΔR (absolute term) ΔR -0.05 0.05 mΩ +25℃~+125℃, ref. TCR spec 5
Insulation resistance 100 MΩ 100V±15V DC applied between electrode and substrate for 60 s 5
Solder electrode wetting (tin coverage) 95 % 245℃±5℃ tin bath, 2s±0.5s 5
Heat resistance ΔR (percent term) ΔR -0.5 0.5 % 270℃±5℃ tin bath, 10s±1 5
Heat resistance ΔR (absolute term) ΔR -0.05 0.05 mΩ 270℃±5℃ tin bath, 10s±1 5
Bending test ΔR (percent term) ΔR -0.5 0.5 % Bending distance 2mm, hold 60s±5s 5
Bending test ΔR (absolute term) ΔR -0.05 0.05 mΩ Bending distance 2mm, hold 60s±5s 5
Long-term high temperature ΔR (percent term) ΔR -1 1 % 170℃ storage, 1000 H 5
Long-term high temperature ΔR (absolute term) ΔR -0.05 0.05 mΩ 170℃ storage, 1000 H 5
Long-term low temperature ΔR (percent term) ΔR -0.5 0.5 % -55℃ storage, 1000 H 5
Long-term low temperature ΔR (absolute term) ΔR -0.05 0.05 mΩ -55℃ storage, 1000 H 5
Temperature cycling ΔR (percent term) ΔR -0.5 0.5 % -55℃ 30 min to normal temp 5 min to 155℃ 30 min, 1000 cycles 5
Temperature cycling ΔR (absolute term) ΔR -0.05 0.05 mΩ -55℃ 30 min to normal temp 5 min to 155℃ 30 min, 1000 cycles 5
Long-term endurance ΔR (percent term) ΔR -1 1 % 70℃±2℃, 1000 h, rated power, 1.5 h on / 0.5 h off 5
Long-term endurance ΔR (absolute term) ΔR -0.05 0.05 mΩ 70℃±2℃, 1000 h, rated power, 1.5 h on / 0.5 h off 5
Damp heat ΔR (percent term) ΔR -1 1 % 85℃±2℃, 85%±3%RH, 1000 h, rated power, 1.5 h on / 0.5 h off 5
Damp heat ΔR (absolute term) ΔR -0.05 0.05 mΩ 85℃±2℃, 85%±3%RH, 1000 h, rated power, 1.5 h on / 0.5 h off 5
Storage ambient temperature 5 35 ℃ Storage environment 7
Storage relative humidity 65 %RH Storage; keep as low as possible 7
Reflow peak time 5 s Peak temperature 4
Reflow pre-heat temperature 150 180 ℃ Pre-heat zone 4
Reflow pre-heat time 90 s Pre-heat zone, ±30 s 4
Reflow soldering zone temperature 230 ℃ Soldering zone 4
Reflow soldering zone time 30 s Soldering zone, ±10 s 4
Rated power 3 W Power derated above 70℃ per power curve 3
Maximum rated current 31.62 A 3
Nominal resistance 3 mΩ Printed as 3mR in part number 3

CAD (KiCad official)

  • Symbol: HoYLR2512E-3W-3mR-1%
  • Footprint: Resistor_SMD:R_2512_6332Metric
  • 3D model: 2512 (KiCad packages3D, STEP)
  • 3D model files: hoylr2512e-3w-3mr-1-etched.step / hoylr2512e-3w-3mr-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hoylr2512e-3w-3mr-1.step / hoylr2512e-3w-3mr-1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Milliohm datasheet (7 pp, sha256 382296d436787e11, retrieved 2026-10-17, 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, primary two-terminal convention (convention), consensus off (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