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HoLLR1206-1W-27mR-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-27mR-1%

Milliohm · Current Sense Resistors / Shunt Resistors · 1206

HoLLR1206-1W-27mR-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 (MPN code F = ±1%) -1 1 % Tolerance code F = ±1% from part-numbering table; MPN ...-1% 1
Temperature coefficient of resistance (1mΩ-35mΩ range) TCR -50 50 ppm/°C 1mΩ-35mΩ range (27mΩ falls here); TCR=(R2−R1)/(R1×(T2−T1))×10^6, R1 at room temp, R2 at 125 °C 2
Rated power P 1 W HoLLR1206 1W variant; power must be derated above 70 °C per derating curve 2
Operating temperature range -55 170 °C 使用温度范围 as printed (-55~+170) 2
Resistance range R 1 100 mΩ Product family HoLLR1206 1/2W-1W, 1mΩ-100mΩ 2
Short time overload resistance change ΔR/R -0.5 0.5 % Overload 5 s at 2× rated power (1W X2), rest 24 h before measurement 5
Temperature cycling resistance change ΔR/R -0.5 0.5 % -55°C to +125°C, 1000 cycles, rest 1 h 5
Biased humidity resistance change ΔR/R -0.5 0.5 % 85°C, 85%RH, rated current 90 min ON / 30 min OFF, 1000 h 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 90 min ON / 30 min OFF, 1000 h 6
Resistance to solder heat resistance change ΔR/R -0.5 0.5 % Dip 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, rest 24 h 6
Joint strength of solder resistance change ΔR/R -0.5 0.5 % Bend test board, load applied at board center 6
Insulation resistance R_ins 100 MΩ 100 VDC applied for 1 min, electrode to protective coat and to substrate 6
Solderability (electrode area wetted by new solder) 95 % Dip in 245±5 °C for 3±1 s; electrode coverage must exceed 95% 6

CAD (KiCad official)

  • Symbol: HoLLR1206-1W-27mR-1%
  • Footprint: Resistor_SMD:R_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: hollr1206-1w-27mr-1-etched.step / hollr1206-1w-27mr-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hollr1206-1w-27mr-1.step / hollr1206-1w-27mr-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