CZ3723 is an open-type current sensor using Hall sensors, which outputs the analog voltage proportional to the AC/DC current. Group III-V semiconductor thin film is used as the Hall sensor, which enables the high-accuracy and high-speed current sensing. Coreless ultra-small surface mount package realizes the space-saving. Also, the low primary conductor resistance suppresses heat generation to achieve the 60Arms continuous current. Existing coreless current sensors have an accuracy disadvantage from degradations caused by a disturbed magnetic field. The CZ372x series has a built-in stray magnetic field reduction function to suppress this effect. The CZ372x series is also UL 61800-5-1 safety compliant, which is an excellent fit for industrial AC drives, servo motors, etc.

The CZ372x series has a large variety of linear measurement ranges, from 10.3A (CZ3720), to 345.2A, (CZ3726). 
This enables the designer to use the same board design across different products and helps the user to expand the options to different current ratings.