Description

DC Current Sensor -100A to +100A - 3.3V Logic

The Pololu 3.3V Current Sensor is an essential component for precise high-current monitoring in electronics. Built on Allegro’s ACS72981LLRATR-100B3, this Hall effect-based sensor is engineered for bidirectional currents ranging from -100A to +100A. It boasts a 250 kHz bandwidth and a swift response time of under 2 µs, ensuring real-time, accurate readings. With an internal resistance of just 0.2 mΩ, the sensor minimizes power dissipation and heat, making it perfect for demanding applications.

5256-008
Designed for 3.3V operation, this sensor features electrical isolation, enhancing safety and flexibility in circuit design. Its integrated temperature compensation ensures consistent performance across a wide range of temperatures. Clearly marked connections and current flow directions simplify setup, while the “3V3 B10” marking aids in quick identification. Ideal for power supplies, motor controls, and battery management, this sensor is a reliable choice for high-performance current monitoring.

Quick Spec

Typical Operating Voltage: 3.3V
Current Sense: 13.2 mV/A
Logic Voltage Range: 3.0 ~ 3.6V
Supply Current: 14mA
Version: -100A to +100A (bidirectional 100A), 3.3V
Current Sensor: Allegro ACS72981LLRATR-100B3
Dimensions: 17.78 x 20.32mm
Weight: 3g

PLEASE NOTE: This product is intended for use below 30V. Working with higher voltages can be extremely dangerous and should only be attempted by qualified individuals with appropriate equipment and experience.