Power metal strip shunt resistors featuring a solid metal nickel-chrome alloy resistive element with a calibration notch and "boot" design on their terminals have been released by Microhm Electronics. They improve TCR performance (down to ±10 ppm/°C) for better accuracy over temperature extremes.
 

 

With extremely low resistance down to 100µΩ and power ratings to 36W, the Microhm Electronics devices increase accuracy and lower costs compared with manganese alloy shunts and Hall Effect current sensing solutions, 

 

while the two sense pins of the MMS8518 aid in PCB mounting and provide consistent contact point locations on the shunt. Offered in the 8518 case size, the resistors feature a proprietary processing technique that produces their extremely low resistance values, which allow for high current capabilities.
 

 

 

The devices are designed for battery management in gas, diesel, hybrid, and electric cars and trucks, as well as electric forklifts, large UPS systems, and other heavy industrial applications.

 

Featuring an all-welded construction, the MMS8518 offer low inductance values of < 5nH, low thermal EMF down to < 1.25µV/°C, and an operating temperature range of -55°C to +170°C. The resistors are RoHS-compliant and halogen-free.