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LRAN25EFER008

Public Made by Adom

by adom

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

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LRAN25EFER008

NCT · Current Sense Resistors/Shunt Resistors · 2512

LRAN25EFER008 from NCT, 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 First end electrode of the LRAN25 2512 alloy current-sense resistor (2 W max rated power, -55 to +170 °C operating range, 4-wire measurement on the back electrodes).
2 2 passive Second end electrode of the LRAN25 2512 alloy current-sense resistor, interchangeable with the first (6.4 mm × 3.2 mm body, 2 W max rated power).

Key specifications

Parameter Value
Manufacturer NCT
Package 2512
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
Maximum rated power (LRAN25, 2W column) P 2 W Rated power; derate above 70°C per power derating curve (curve not numeric in text) 5
Maximum rated current (LRAN25 row) I 31.63 A LRAN25 row; rated per I=SQRT(P/R) 5
Maximum overload current (LRAN25 row) 86.61 A LRAN25 row 5
Temperature coefficient of resistance, R≤2mΩ TCR -275 275 ppm/°C R≦2mΩ 5
Temperature coefficient of resistance, 1mΩ<R≤10mΩ TCR -50 50 ppm/°C 1mΩ<R≦10mΩ 5
Resistance range (LRAN25) R 2 10 mΩ Resistance range column for ±1%(F), ±2%(G), ±5%(J) 5
Operating temperature range (LRAN25) T -55 170 °C 使用温度范围, LRAN25 row 5
Storage temperature T 5 35 °C Sealed storage, not in direct sunlight, avoid corrosive gases; shelf life 2 years 14
Storage relative humidity RH 40 75 %RH Sealed storage, 5-35 °C 14
Short time overload resistance change -0.5 0.5 % 5 s at X5 rated power (LRAN25 2W), then 24 h rest; JIS C5201 10
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 11
Temperature cycling resistance change -0.5 0.5 % -55°C to +125°C, 1000 cycles 11
Low temperature exposure resistance change -0.5 0.5 % -55 ±2°C, 1000 h 11
High temperature exposure resistance change -1 1 % 170°C, 1000 h 11
Load life resistance change -1 1 % 70 ±2°C, rated current, 90 min ON / 30 min OFF, 1000 h 11
Resistance to solder heat resistance change -0.5 0.5 % Dipped in 260 ±5°C solder bath for 10 ±1 s 11
Solderability (new solder coverage of electrode) 95 % Dipped in 245 ±5°C solder for 3 ±1 s 11
Resistance to solvent resistance change -0.5 0.5 % Isopropanol at 20-25°C, 60 ±5 s; no appearance damage 11
Insulation resistance 100 MΩ 100 VDC applied 1 min between electrodes and protective layer/substrate; printed as >100MΩ 12
Joint strength of solder resistance change -0.5 0.5 % Bend test on solder-joined test board, load applied at centre; no appearance damage 12

CAD (KiCad official)

  • Symbol: LRAN25EFER008
  • Footprint: Resistor_SMD:R_2512_6332Metric
  • 3D model: 2512 (KiCad packages3D, STEP)
  • 3D model files: lran25efer008-etched.step / lran25efer008-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lran25efer008.step / lran25efer008.glb are the bare package body.

Provenance

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

  • Datasheet: NCT datasheet (15 pp, sha256 1c7bbc6a4c0f07fe, retrieved 2026-11-07, 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