Littelfuse has announced the launch of its new Current Sensing Resistor (CSR) family. These new CSRs offer a more cost-effective solution for measuring current within circuits, enabling voltage monitoring, control, and power management of functions such as battery charging and motor speed, while also providing overcurrent protection.

The new Littelfuse CSR family of products extends the company’s circuit protection solutions portfolio, deepening its current and voltage monitoring focus. Each CSR is either a metal foil, metal strip, or metal plate resistor ideal for measuring currents in circuits due to its high precision and low resistance rating.

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.

This means that the CSR series is a game changer for anyone who requires precise current and voltage monitoring for their advanced technologies. These devices are ideal for numerous applications, including automotive electronics, electric vehicles (including 2- and 3-wheelers), home appliances, consumer electronics, and industrial automation.