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Contents

README

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LRAN12CFTR011

NCT · Current Sense Resistors/Shunt Resistors · 1206

LRAN12CFTR011 from NCT, 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 NCT
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 tolerance (code F) -1 1 % Part-number tolerance code F = ±1% 3
Maximum rated power 1 W 1W variant (code C, 1 mΩ to 39 mΩ); derate above 70 °C per power derating curve 4
Maximum rated current 31.62 A 1W row of rating table; printed value for the 1W family 4
Maximum overload current 70.71 A 1W row of rating table 4
Temperature coefficient of resistance TCR -50 50 ppm/°C R1 at room temperature, R2 at 125 °C (TCR test method) 4
Operating temperature range -55 170 °C 使用温度范围 (operating temperature range) 4
Storage temperature 5 35 °C Sealed storage, relative humidity 40-75%, shelf life 2 years 11
Short time overload resistance change -0.5 0.5 % 5 s at X5 rated power, 24 h rest 8
Biased humidity resistance change -0.5 0.5 % 85 °C ±5 °C, 85 ±5 %RH, rated current 90 min ON / 30 min OFF, 1000 h 8
Temperature cycling resistance change -0.5 0.5 % -55 °C to +125 °C, 1000 cycles 8
Low temperature exposure resistance change -0.5 0.5 % -55 ±2 °C, 1000 h 8
High temperature exposure resistance change -1 1 % 170 °C, 1000 h 9
Load life resistance change -1 1 % 70 ±2 °C, rated current 90 min ON / 30 min OFF, 1000 h 9
Resistance to solder heat resistance change -0.5 0.5 % 260 ±5 °C solder bath, 10 ±1 s 9
Resistance to solvent resistance change -0.5 0.5 % Isopropanol 20-25 °C, 60 ±5 s 9
Joint strength of solder resistance change -0.5 0.5 % Bend test under load on test board 9
Insulation resistance 100 MΩ 100 VDC applied for 1 min between electrodes and protective coat / substrate 9
Solderability (new solder coverage) 95 % Dipped at 245 ±5 °C for 3 ±1 s; electrode area covered with new solder 9

CAD (KiCad official)

  • Symbol: LRAN12CFTR011
  • Footprint: Resistor_SMD:R_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: lran12cftr011-etched.step / lran12cftr011-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lran12cftr011.step / lran12cftr011.glb are the bare package body.

Provenance

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

  • Datasheet: NCT datasheet (12 pp, sha256 9468aafd42725899, 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