Improved KOA UR73V Series with AEC-Q200

KOA’s UR73V thick-film low-ohmic resistors are designed for current sensing, especially in demanding environments. The special face-down construction enables low resistance values with an excellent TCR of 75 ppm/K. The low TCR of the new UR73V series, along with its wide operating temperature range of -55 °C to +155 °C, allows for applications in the automotive sector as well as in highly reliable DC-DC converters.

The TCR of 75 ppm/K is specified for resistance values between 12 mΩ and 75 mΩ in chip size 1206, and between 15 mΩ and 100 mΩ in size 0805. The entire UR73V series is available in a value range from 10 mΩ to 100 mΩ and in sizes 0805 and 1206. A continuous load of 0.5 W is permitted for size 0805, and 0.75 W for size 1206. The UR73V series can be a more cost-effective alternative to “metal-plate” shunt resistors.