CZ3705

Current Sensors Overview

The CZ3705 is a coreless current sensor utilizing open-loop Hall effect technology for AC/DC measurement. It features a bidirectional output with a sensitivity of 25mV/A and an accuracy of ±1%. The device operates within a supply voltage range of 4.5V to 5.5V, drawing a maximum supply current of 23.4mA. It offers a response time of 1µs and maintains linearity of ±0.13%. The sensor supports a detection current of 60Arms and functions across a temperature range of -40°C to 105°C. It is housed in a 16-PowerSOIC package.

Current Sensors Feature Summary

• Coreless design eliminates magnetic core saturation issues
• Bidirectional sensing capability for accurate AC/DC monitoring
• High precision with ±1% accuracy and ±0.13% linearity

Current Sensors Applications

• Motor drive systems
• Power control circuits
• Inverter protection

Current Sensors Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to ensure correct packaging and tape/reel specifications. Confirm that the component meets RoHS compliance requirements for your target market. Check for any recent Product Change Notifications (PCN) regarding assembly or material updates before finalizing procurement orders.

Current Sensors Selection Notes

Select this component when bidirectional current monitoring is required without magnetic core limitations. The 25mV/A sensitivity suits applications needing moderate signal output. Ensure the PCB layout accommodates the 16-PowerSOIC footprint and maintains the specified 8mm clearance/creepage distance for safety isolation.

Current Sensors Part Context

The CZ3705 belongs to the CZ37 series of coreless current sensors from Asahi Kasei Microdevices. This series leverages thin-film Hall element technology for high reliability. The part is designed for industrial and automotive environments requiring precise current feedback in compact form factors.

Current Sensors Replacement Considerations

CZ3706: Higher current rating (180A), lower sensitivity (12mV/A). CZ3722: Unidirectional, different current rating (41.3A). Verify pinout compatibility and thermal performance when substituting.