Current Sensors

Current Sensors are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many current sensor manufacturers including Allegro MicroSystems, LEM, Texas Instruments, Vacuumschmelze & more.

Current sensors are electronic sensing devices designed to detect and measure electrical current flowing through a conductor without significantly affecting circuit operation. They convert current measurements into usable electrical signals that enable monitoring, control, protection, and energy management functions within electronic and electrical systems. These devices play a critical role in improving system efficiency, safety, and reliability by providing accurate real-time current measurement and feedback.

Types: The most common current sensor types include Hall effect current sensors, shunt-based current sensors, current transformers, fluxgate current sensors, closed-loop current sensors, open-loop current sensors, Rogowski coil current sensors, and isolated current sensing devices, each optimized for specific accuracy, isolation, and current measurement requirements.

Applications: Current sensors are widely used in industrial automation systems, battery management systems, motor drives, power supplies, renewable energy systems, automotive electronics, energy monitoring equipment, electric vehicle platforms, and power distribution networks to measure, monitor, and control electrical current flow.

Selection requirements: To choose current sensors, evaluate current measurement range, accuracy, isolation requirements, response time, output type, bandwidth, power consumption, operating temperature range, package type, and suitability for the intended electrical and environmental conditions.

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Please view our large selection of current sensors below.