CQ3201

Current Sensors Overview

The CQ3201 is a high-speed response coreless current sensor manufactured by Asahi Kasei Microdevices. It features a bidirectional output with a detection current of 20A and a supply voltage range of 3.3V. The device offers a fast response time of 0.5µs and a maximum supply current of 6.2mA. Designed for surface mount installation, it operates within a temperature range of -40°C to 90°C. This component belongs to the Currentier series, utilizing Hall element technology for precise AC/DC current measurement in compact packages.

Current Sensors Feature Summary

• High-speed response capability for rapid signal processing
• Coreless design enabling system downsizing and reduced weight
• Bidirectional sensing for accurate AC and DC current monitoring

Current Sensors Applications

• AI Data Center power distribution systems
• SSCB (Solid State Circuit Breaker) applications
• eFuse implementation for automotive electronics
• Next-generation power devices using SiC or GaN technologies
• Charging station infrastructure control

Current Sensors Procurement Notes

Verify the specific package variant and suffix codes against official AKM documentation before ordering. Confirm that the selected part number matches the required bidirectional functionality and operating temperature range. Ensure compatibility with existing PCB footprints and thermal management requirements. Cross-reference the latest datasheet revisions to confirm pinout consistency and electrical specifications. Validate supply chain authenticity through authorized channels.

Current Sensors Selection Notes

Select this component when high-speed current monitoring is critical for system safety and efficiency. The 0.5µs response time supports fast protection mechanisms in sensitive power electronics. Consider the coreless architecture for applications requiring minimal magnetic interference and compact form factors. Evaluate the 20A detection limit against peak load requirements to ensure adequate headroom. Verify interface compatibility with downstream signal conditioning circuits.

Current Sensors Part Context

The CQ3201 is part of AKM's Currentier family, leveraging over 40 years of Hall element expertise. It represents a shift towards integrated, high-performance current sensing solutions. The device addresses modern demands for smaller, faster, and safer power management systems. Its development aligns with industry trends toward carbon neutrality and efficient energy usage in advanced electronic applications.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.