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Contents

README

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SR732BTTDR330F

KOA Speer Elec · Current Sense Resistors / Shunt Resistors · 1206

SR732BTTDR330F from KOA Speer Elec, 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 terminal electrode of the SR73 2B (1206) 33 mΩ ±1% current detecting chip resistor, rated 0.33W at 70°C ambient (0.5W at 110°C terminal temperature), terminal width c 0.5±0.3 mm.
2 2 passive Second terminal electrode of the SR73 2B (1206) 33 mΩ ±1% current detecting chip resistor, rated 0.33W at 70°C ambient (0.5W at 110°C terminal temperature), terminal width c 0.5±0.3 mm.

Key specifications

Parameter Value
Manufacturer KOA Speer Elec
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 330 mΩ nominal, catalog attribute (LCSC C186609) catalog
Tolerance -1 1 % catalog attribute (LCSC C186609) catalog
Rated power 330 mW catalog attribute (LCSC C186609) catalog
Temperature coefficient TCR -100 100 ppm/°C catalog description (LCSC C186609) catalog

CAD (KiCad official)

  • Symbol: SR732BTTDR330F
  • Footprint: Resistor_SMD:R_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: sr732bttdr330f-etched.step / sr732bttdr330f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sr732bttdr330f.step / sr732bttdr330f.glb are the bare package body.

Provenance

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

  • Datasheet: KOA Speer Elec datasheet (2 pp, sha256 952a5b16856476ea, retrieved 2026-11-06, 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