CZ3725

Current Sensors Overview

The CZ3725 is a unidirectional current sensor from the Currentier series, manufactured by Asahi Kasei Microdevices. It utilizes open-loop Hall effect technology to measure direct currents up to 165.8A with a single channel. The device features a voltage output ratio and a sensitivity of 10mV/A. It operates on a supply voltage of 4.5V to 5.5V, drawing a maximum supply current of 25mA. The sensor provides a fast response time of 1µs and maintains an accuracy of ±1.7%. It is housed in a 10-SMD PowerSOIC package and supports AC/DC measurement within an operating temperature range of -40°C to 105°C.

Current Sensors Feature Summary

• Open-loop Hall effect sensing for non-intrusive current detection
• High-speed 1µs response time for dynamic load monitoring
• Unidirectional measurement capability for DC applications
• Integrated voltage output for direct interface with control systems

Current Sensors Applications

• Electric vehicle battery management systems
• Motor drive current monitoring
• Power supply overcurrent protection
• Industrial inverter control circuits

Current Sensors Procurement Notes

Verify the specific part number suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical tolerances. Ensure that the procurement source provides valid traceability documentation. Confirm that the component meets RoHS compliance standards required for your assembly process. Cross-reference the package dimensions with your PCB footprint library to prevent mechanical mounting errors during integration.

Current Sensors Selection Notes

Select this component when unidirectional high-current measurement is required without magnetic saturation concerns. The open-loop architecture offers cost efficiency compared to closed-loop alternatives. Consider the 165.8A limit relative to peak load requirements. The 10-SMD package suits space-constrained designs. Evaluate thermal dissipation needs given the surface mount installation type and operating temperature range.

Current Sensors Part Context

The CZ3725 belongs to AKM's Currentier family, leveraging decades of Hall element expertise. This series targets automotive and industrial sectors demanding precise current feedback. The device integrates signal conditioning within the PowerSOIC package. It complements other sensors in the lineup by offering high current capacity in a compact form factor suitable for modern power electronics.

Current Sensors Replacement Considerations

Check the CZ3722 datasheet for lower current alternative options within the same package family. Verify if the CZ3706 bidirectional variant meets system polarity requirements. Ensure any substitute maintains the 10-SMD footprint and 4.5V-5.5V supply range.