Hall Effect Sensors Sport Sealed, Modular Package

Sensata Technologies’ ACW4 single-turn and TCW4 multi-turn absolute Hall Effect sensors feature an over-molded, two-part modular construction that provides engineers with what their maker calls “exceptional design flexibility.” The sensing electronics are encased in a thermoplastic polyamide shell while the separate activating magnet is external to the sensor assembly.


The modular architecture results in package measuring 50-mm in diameter by a maximum 24-mm thick. The IP67-rated sensor sports an over-molded housing that completely encapsulates the electronics and seals the cable entry from exposure to the elements. This makes it viable for robotic, industrial, manufacturing, and material handling applications. Sensata also offers a variety of engineered magnet holder accessories.

Industry Event

Sensors Expo & Conference

Register now and save with Early Bird Rates – Limited Passes Available!

North America’s can’t-miss event dedicated to sensors, connectivity, and IoT will take place this June 22-24 in San Jose, CA. Attendees can make connections, collaborate with experts & peers, get insight into emerging technology & trends, and find new approaches to evergreen challenges. Use promo code FE100 for $100 off Conference Passes.


A variety of output types are available to ensure that the ACW4 or TWC4 sensors can interface with the most common controllers. Unlike typical Hall effect sensors, which rely on a shaft to operate, there are no moving parts in contact with each other; eliminating any potential wear or misalignment. To learn more, peruse the ACW4 and TCW4 datasheets.

Suggested Articles

Purdue University researchers are creating technologies to help compress 3D camera files and automate focus and exposure settings.

A $2.2 trillion economic relief package is anticipated to give the struggling U.S. economy a shot in the arm.

Micron also sees long-term growth for DRAM and NAND, with NAND in the 30% range