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CQ121E/131E Compact Open Type
Precision Current Sensor 
The CQ-121E and 131E are open-loop type linear current sensors
offered in ultra-compact package, compliant to IEC standard for
insulation. The devices incorporate AKEMD's low noise InAs-base
Hall Element and high accuracy OP amplifier, simplifying the design
of current sensing on an electrical board. The CQ-121E operates
over at current range of +/-30A, while the CQ-131E operates over at
the range of +/-60A. The CQ-121E/131E are offered with AKEMD's
patented housing architecture in an 8x20x14 mm package which
performs high noise tolerance of current sensing and enables
the system to save extra component cost and the real estate required.
Features
*1: Specified for RMS of current. For DC current, +/-30 A Max is *2: Screening models by ranging of current sensitivity are available. Architecture and Block Diagram
Applications
Current sensing in home appliances features:
Dimension and Marking
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