HCSM2818 high current shunt resistors with 5W power
The HCSM2818 from Stackpole is only marginally larger than a standard 2,512 size chip but offers a 5W continuous power rating to maximise power handling in a given PCB area. The AEC compliant HCSM2818 offers one and five percent resistance tolerances in resistance values of four, five, ten, 15, 20, and 25 milliohms. TCR ranges from 200ppm for the four and five milliohm values to 75 ppm for the values 10 ppm and higher.
Modern electronics utilise current sense resistors for portable power management. As more devices become portable, higher currents and higher power ratings are critical, however, space for any portable electrical device must always be conserved.
Pricing for the HCSM2818 varies with tolerance and ranges from $0.40 each for five percent to $0.45 for one percent tolerances.