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HoLLR1206-1W-20mR-1%

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Milliohm Current Sense Resistors / Shunt Resistors, 1206. 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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HoLLR1206-1W-20mR-1%

Milliohm · Current Sense Resistors / Shunt Resistors · 1206

HoLLR1206-1W-20mR-1% from Milliohm, in a 1206. 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 1206
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 (F code, ±1%) -1 1 % Part-number tolerance code F = ±1% (MPN 1% decoded from the part-numbering table) 1
Temperature coefficient of resistance (TCR) TCR -50 50 ppm/°C 1mR~35mR range (20mR falls in this range); TCR = (R2-R1)/(R1×(T2-T1))×10^6, R2 at 125 °C 2
Rated power P 1 W MPN -1W; derate above 70 °C per power curve 2
Operating temperature range -55 170 °C 使用温度范围 for HoLLR1206 series 2
Short time overload resistance change ΔR/R -0.5 0.5 % 2× rated power (1W X2) applied 5 s, then 24 h rest 5
Biased humidity resistance change ΔR/R -0.5 0.5 % 85 °C, 85 %RH, rated current applied, 90 min ON / 30 min OFF, 1000 h 5
Temperature cycling resistance change ΔR/R -0.5 0.5 % -55 °C to +125 °C, 1000 cycles, 1 h rest 5
Low temperature exposure resistance change ΔR/R -0.5 0.5 % -55±2 °C storage, 1000 h 5
High temperature exposure resistance change ΔR/R -1 1 % 170 °C storage, 1000 h 6
Load life resistance change ΔR/R -1 1 % 70 ±2 °C, rated current applied, 90 min ON / 30 min OFF, 1000 h 6
Resistance to solder heat resistance change ΔR/R -0.5 0.5 % Dipped in 260±5 °C solder, 10±1 s 6
Resistance to solvent resistance change ΔR/R -0.5 0.5 % Isopropyl alcohol 20~25 °C, 60±5 s 6
Joint strength of solder resistance change ΔR/R -0.5 0.5 % Bend test board, load applied at center 6
Insulation resistance R_ins 100 MΩ 100 VDC applied 1 min between electrodes and protective coat/substrate 6
Solderability (new tin coverage of electrodes) 95 % Dipped in 245±5 °C for 3±1 s; electrode area covered with new solder 6

CAD (KiCad official)

  • Symbol: HoLLR1206-1W-20mR-1%
  • Footprint: Resistor_SMD:R_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: hollr1206-1w-20mr-1-etched.step / hollr1206-1w-20mr-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hollr1206-1w-20mr-1.step / hollr1206-1w-20mr-1.glb are the bare package body.

Provenance

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

  • Datasheet: Milliohm datasheet (7 pp, sha256 881128cf8909c33d, 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