Low value resistors are required to achieve efficiency; however, it is common for two terminal resistors to result in significant measurement errors due to terminal resistance.
Stackpole’s CSSK3637 Series offers a solution to engineers needing high power and high efficiency performance. The CSSK3637 is rated at 3 Watts. It’s four-terminal design allows for the forced current to flow through the larger terminations while providing accurate voltage sensing at the narrow terminals. The CSSK3637 offers excellent TCR down to ±50 ppm and resistance tolerance down to ±0.5% for exceptional precision. The CSSK is available in resistance values from 0.5 to 6 milliohm making it able so sense currents of over 77 amps.