سنسور و مبدل سنسور جریان

Product Attributes

Introduction

CZ-3721 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 CZ-372x series has a built-in stray magnetic field reduction function to suppress this effect. The CZ-372x series is also UL 61800-5-1 safety compliant, which is an excellent fit for industrial AC drives, servo motors, etc. The CZ-372x series has a large variety of linear measurement ranges, from 10.3A (CZ-3720), to 345.2A, (CZ-3726). 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.

Features

• Compliant with safety standard of UL61800-5-1 (Clearance, Creepage distance ≥ 8.0mm)
• Certified with safety standards of UL-1577 and IEC/UL62368-1.
• Maximum Primary Current : 60Arms
• High-accuracy : ±0.7%F.S. (Ta = 0~90℃ Typ.)
• Quite small primary conductor resistance : 0.27mΩ Typ.
• Fast response time : 1μs Typ.
• Stray magnetic field reduction function
• Small-sized surface mount package（12.7mm x 10.9mm x 2.25mm）
• Differential output with VREF pin
• Isolation Voltage：3.0kV（AC50Hz，60s）
• Ratiometric output

Applications

• AC motors
• DC motors
• UPS
• General Inverters
• Power conditioners