component

LRBM25GFER050

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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LRBM25GFER050

NCT · Current Sense Resistors/Shunt Resistors · 2512

LRBM25GFER050 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 terminal (electrode) of the 2512 current-sense resistor, 6.4±0.2 x 3.2±0.2 mm body, rated 3W maximum at 70°C with derating above, operating range -55 to +170°C.
2 2 passive Second terminal (electrode) of the 2512 current-sense resistor, interchangeable with the first; resistance is measured 4-wire across the electrodes and the part has a maximum rated current of 38.73 A for LRB25* 3W 2~100 mΩ.

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
Resistance tolerance (code F) -1 1 % Part-number tolerance code F = ±1% 2
Temperature coefficient of resistance TCR -50 50 ppm/°C LRB25* 3 W row, resistance range 2~100 mΩ 3
Resistance range R 2 100 mΩ LRB25* 3 W row (non-S) 3
Maximum rated power P 3 W LRB25* 3 W row; rating derated above 70 °C per power derating curve 3
Maximum rated current 38.73 A LRB25* 3 W row, resistance range 2~100 mΩ 3
Maximum overload current 86.6 A LRB25* 3 W row, resistance range 2~100 mΩ 3
Operating temperature range -55 170 °C Stated for LRA/LRB 25* series rows 3
Storage temperature 5 35 °C Sealed storage, away from direct sunlight and corrosive gases 6
Storage relative humidity 40 75 Sealed storage at 5~35 °C; unit not printed 6
Short time overload resistance change -0.5 0.5 % 5 s overload at 5 times rated power (2512, 3 W), 24 h rest 5
Biased humidity resistance change -0.5 0.5 % 85 °C/85 %RH, 10% of rated power, 1000 h, 24±4 h rest 5
Temperature cycling resistance change -0.5 0.5 % -55 °C to +150 °C, 1000 cycles, 15 min dwell 5
Low temperature exposure resistance change -0.5 0.5 % -55±2 °C, 96 h 5
High temperature exposure resistance change -1 1 % 170 °C, 1000 h 5
Load life resistance change -1 1 % 70±2 °C, rated power, 90 min ON / 30 min OFF, 1000 h 5
Resistance to solder heat resistance change -0.5 0.5 % 260±5 °C solder bath, 10±1 s 5
Terminal bending resistance change -0.5 0.5 % 2.5 kg load, 2 mm deflection, 60 s 5
Nominal resistance (code R050) R 50 mΩ Code R050 = 50 mΩ (R001=1mR, R010=10mR) 2

CAD (KiCad official)

  • Symbol: LRBM25GFER050
  • Footprint: Resistor_SMD:R_2512_6332Metric
  • 3D model: 2512 (KiCad packages3D, STEP)
  • 3D model files: lrbm25gfer050-etched.step / lrbm25gfer050-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lrbm25gfer050.step / lrbm25gfer050.glb are the bare package body.

Provenance

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

  • Datasheet: NCT datasheet (6 pp, sha256 13512fac2aa9df8a, retrieved 2026-10-23, 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