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HoSRX1206-3W-0.5mR-1%

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Milliohm Current Sense Resistors / Shunt Resistors, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HoSRX1206-3W-0.5mR-1%

Milliohm · Current Sense Resistors / Shunt Resistors · 1206

HoSRX1206-3W-0.5mR-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 First welded terminal of the 0.5 mΩ ±1% bare alloy resistor, rated 3 W and 77.45 A, with a recommended 1206 solder pad of L 4 mm, A 2.1 mm and B 1.2 mm.
2 2 passive Second welded terminal of the 0.5 mΩ ±1% bare alloy resistor, interchangeable with the first and rated -55°C to +170°C, with a Kelvin sensing trace shown on the recommended pad layout.

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
Resistance value R 0.5 mR Nominal resistance as printed in part number 0.5mR 3
Resistance tolerance -1 1 % Tolerance code 1% in part number 3
Resistance temperature coefficient (TCR) -100 100 ppm/℃ Printed as ±100ppm/℃ for SRX series 3
Operating temperature range -55 170 ℃ Operating temperature range as printed 3
Rated power 3 W Rated power as printed for 3W part 3
Rated current 77.45 A Rated current as printed on selection example for this part 3
Storage ambient temperature 5 35 ℃ Storage at relative humidity below 65% 7
Short-time overload ΔR △R -0.5 0.5 % Apply 5 times rated power for 5 seconds, JIS-C-5201 5
Bending strength ΔR △R -0.5 0.5 % 2mm bending, at least 60 seconds support time, AEC Q200-005 5
Solvent resistance ΔR △R -0.5 0.5 % Immerse in 20~25°C isopropyl alcohol for 60±5 seconds, MIL-STD-202 Method 215 5
Solder heat resistance ΔR △R -0.5 0.5 % 260±5°C tin bath for 10±1 seconds, MIL-STD-202 Method 210 5
Temperature cycling ΔR △R -0.5 0.5 % 1000 cycles (-55~155°C), 30 min dwell, JESD22 Method JA-104 5
High-temperature storage ΔR △R -0.5 0.5 % 1000 hours at 155°C, no power applied, MIL-STD-202 Method 108 5
Biased humidity ΔR △R -0.5 0.5 % 1000 hours at 85°C, 85% relative humidity, loaded with 10% rated power 5
Load life ΔR △R -0.5 0.5 % Rated current, Ta=125°C, 100% power, 0.5 h off / 1.5 h on, 1000 hours, MIL-STD-202 Method 108 5
Low-temperature storage ΔR △R -0.5 0.5 % -55°C storage for 1000 hours, JIS-C-5201-4.23.4 5
Mechanical shock ΔR △R -0.5 0.5 % Half-sine pulse, 0.5 ms duration, 100g peak, X/Y/Z directions, MIL-STD-202 Method 213 5
Vibration ΔR △R -0.5 0.5 % 10 to 2000 Hz, 12 cycles in each of three perpendicular directions, MIL-STD-202 Method 204 5

CAD (KiCad official)

  • Symbol: HoSRX1206-3W-0.5mR-1%
  • Footprint: Resistor_SMD:R_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: hosrx1206-3w-0-5mr-1-etched.step / hosrx1206-3w-0-5mr-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hosrx1206-3w-0-5mr-1.step / hosrx1206-3w-0-5mr-1.glb are the bare package body.

Provenance

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

  • Datasheet: Milliohm datasheet (7 pp, sha256 4aae0c788c87914a, retrieved 2026-11-07, tier: lcsc)
  • 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