component

LR122WF500MT4E

Public Made by Adom

by adom

UNI ROYAL Uniroyal Elec Current Sense Resistors / Shunt Resistors, 2512. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs lr122wf500mt4e: factory component page (tier=lcsc) · Ray 15d ago
viewers lr122wf500mt4e: viewers · Ray 15d ago
lr122wf500mt4e-etched.glb lr122wf500mt4e: factory component page (tier=lcsc) · Ray 15d ago
lr122wf500mt4e-etched.step lr122wf500mt4e: factory component page (tier=lcsc) · Ray 15d ago
lr122wf500mt4e-hero.glb lr122wf500mt4e: hero GLB from the etched model (keeps the MPN mark) · Ray 15d ago
lr122wf500mt4e.glb lr122wf500mt4e: factory component page (tier=lcsc) · Ray 15d ago
lr122wf500mt4e.kicad_mod lr122wf500mt4e: factory component page (tier=lcsc) · Ray 15d ago
lr122wf500mt4e.kicad_sym lr122wf500mt4e: factory component page (tier=lcsc) · Ray 15d ago
lr122wf500mt4e.lbr lr122wf500mt4e: factory component page (tier=lcsc) · Ray 15d ago
lr122wf500mt4e.step lr122wf500mt4e: factory component page (tier=lcsc) · Ray 15d ago
page.json Set visibility: public · Ray 15d ago
README.md Initial commit: component/lr122wf500mt4e · Ray 15d ago

LR122WF500MT4E

UNI ROYAL Uniroyal Elec · Current Sense Resistors / Shunt Resistors · 2512

LR122WF500MT4E from UNI ROYAL Uniroyal Elec, 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 Resistor terminal 1 (end electrode A/B, L=6.35±0.254 mm body); non-polarized and interchangeable with terminal 2, 2W rating at 70℃ with max rating current 44.72A and max overload current 100.00A for the 16~450 mΩ, ≤±50 ppm/℃ version.
2 2 passive Resistor terminal 2 (opposite end electrode); non-polarized and interchangeable with terminal 1, operating temperature -55~+170℃.

Key specifications

Parameter Value
Manufacturer UNI ROYAL Uniroyal Elec
Package 2512
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 50 mΩ nominal, catalog attribute (LCSC C2941069) catalog
Tolerance -1 1 % catalog attribute (LCSC C2941069) catalog
Rated power 2 W catalog attribute (LCSC C2941069) catalog
Temperature coefficient TCR -50 50 ppm/°C catalog description (LCSC C2941069) catalog

CAD (KiCad official)

  • Symbol: LR122WF500MT4E
  • Footprint: Resistor_SMD:R_2512_6332Metric
  • 3D model: 2512 (KiCad packages3D, STEP)
  • 3D model files: lr122wf500mt4e-etched.step / lr122wf500mt4e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lr122wf500mt4e.step / lr122wf500mt4e.glb are the bare package body.

Provenance

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

  • Datasheet: UNI ROYAL Uniroyal Elec datasheet (8 pp, sha256 9cafe18fe2eb29b6, retrieved 2026-10-19, 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