Offering load stability to 0.1% for up to 1,000 hours, the RoHS-compliant SHR 4-8065, SHR 4-80110, SHR 4-80216, SHR 4-80320, and SHR 4-80370 provide highly accurate and reliable current sensing in industrial power supplies, digital multimeters, current control systems, medical equipment, solar and wind inverters, and AC/DC converters, as well as systems such as battery chargers and test equipment for electric cars.

The resistors released today offer a wide range of power ratings — from 24 W in free air to 2500 W when mounted on a heatsink — with low resistance values from 0.005 Ω to 300 Ω and tight tolerances to ±0.1%. The devices feature maximum currents to 60 A (with higher values and currents available upon request), very low inductance of <50 nh, thermal EMF of <1 µV/°C, and a temperature range of -40°C to +130°C.

"The choice of a precision resistor can have far-reaching effects on system performance," said Kai Karstensen, managing director of Powertron. "For measurement instruments, semiconductor test equipment, consumer electronics, and other applications that demand stability, reliability, and precision, our SHR series of foil current sense resistors offers the perfect solution."