New current sensing resistor family for automotive and consumer markets

Littelfuse, Inc has launched its new CSR family. These new CSRs provide a more cost-effective solution for measuring current within circuits, facilitating voltage monitoring, control, and power management of functions such as battery charging and motor speed, while also delivering overcurrent protection.

The Current Sensing Resistors Series is a game changer for automotive and consumer electronics markets and are ideal for countless applications, including automotive electronics, EVs, including two- and three-wheelers, home appliances, consumer electronics, and industrial automation.

“Our customers include industry leaders in automotive and consumer electronics, who require precise current and voltage monitoring for their advanced technologies,” said Stephen Li, product manager at Littelfuse. “To address these needs, the CSR family provides a more cost-effective solution than competing technologies like Hall Effect sensors, current transformers, flux gate sensors (DC only), and Rogowski coils (AC only). Additionally, CSRs work in AC and DC circuits without requiring additional power or equipment to enable measurement.”

Each of the eight CSRs is either a metal foil, metal strip, or metal plate resistor for measuring circuits' currents due to its high precision and low resistance rating.