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Contents

README

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HoYH1206-1W-220mR-1%

Milliohm · Current Sense Resistors / Shunt Resistors · 1206

HoYH1206-1W-220mR-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 One terminal electrode (Sn/Ni/Cu) of the 220 mΩ ±1% current-sense resistor, rated 1 W with TCR ±50 ppm, terminal width A = 0.68±0.30 mm, recommended pad P 1.20 mm.
2 2 passive Second terminal electrode (Sn/Ni/Cu) of the non-polarised, non-inductive resistor, interchangeable with the other terminal, 3.30±0.20 mm body length, operating range -55 to +155 °C.

Key specifications

Parameter Value
Manufacturer Milliohm
Package 1206
Category Resistors
Pins 2

Electrical characteristics

Limits from the LCSC catalog entry for this part (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Resistance 220 mΩ nominal, catalog attribute (LCSC C2932843) catalog
Tolerance -1 1 % catalog attribute (LCSC C2932843) catalog
Rated power 1 W catalog attribute (LCSC C2932843) catalog

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin 4.4 两端电极 Terminal electrode(4) : 锡﹑镍﹑ 铜 Sn﹑Ni﹑Cu 4.5 保护防焊层 Protective coating(5) : 防火级环氧树脂,符合 UL- 94-V0要求(绿色) 3

CAD (KiCad official)

  • Symbol: HoYH1206-1W-220mR-1%
  • Footprint: Resistor_SMD:R_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: hoyh1206-1w-220mr-1-etched.step / hoyh1206-1w-220mr-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hoyh1206-1w-220mr-1.step / hoyh1206-1w-220mr-1.glb are the bare package body.

Provenance

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

  • Datasheet: Milliohm datasheet (8 pp, sha256 7874517e3cfb18a8, retrieved 2026-10-21, 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