Low Resistance Metal Alloy Power Resistors Offer Four-Terminal Kelvin Precision to Industrial and Automotive Applications

Published  February 17, 2022   0
L Lakshita
LRMAP4026 Metal Alloy Power Resistors

TT Electronics has announced LRMAP4026 series low resistance metal alloy power resistors that provide four-terminal Kelvin precision and high current capacity to all industrial and automotive applications. Designed for power supply, motor drive, and battery monitoring applications, these resistors feature gullwing design that provides spacing from the PCB which minimises the board temperature rise and enhances the reliability of the assembly.

Available in seven values from 0.2 to 3mΩ, LRMAP4026 series gives designers a high degree of flexibility in a rugged component along with a wide temperature range of -65°C to +170°C. It offers up to 5W in a 4026 footprint with 1% tolerance and TCR of 50ppm/°C.

Key Features

  • 4-terminal Kelvin gullwing terminations
  • Resistance range 0.2mΩ to 3mΩ
  • 5W rating in a compact footprint
  • Robust welded construction
  • Low inductance
  • AEC-Q200 qualified

In addition, the four-terminal design allows complete separation of current path and voltage sense reducing the difference between unmounted and mounted resistance and TCR values, a common problem with two-terminal types.