Honeywell's CSL Series Miniature Current Sensors

Product Announcement from Honeywell Sensing and Internet of Things

Honeywell's CSL Series miniature, open-loop current sensors incorporate our SS490 Series miniature ratiometric linear Hall-effect sensor (MRL?). The sensing element is encapsulated in a printed circuit board-mountable plastic package. The combination of sensor, flux collector, and wire coil comprises the current sensor assembly. These sensors are ratiometric.


  • Wired open-loop design with multiple turns for increased sensitivity
  • ac or dc current sensing
  • Linear ratiometric output
  • Current sinking or sourcing output for interfacing flexibility
  • Low insertion loss
  • Fast response time
  • Compact size for applications with limited space
  • Accurate, low-cost sensing
  • Minimum energy dissipation
  • Maximum current limited only by conductor size
  • Built-in temperature compensation promotes reliable operation
  • Operating temperature range -25 ?C to 100 ?C [-13 ?F to 212 ?F]
  • RoHs compliant (lead-free)

Typical Applications:

  • Motor control in applications, HVAC and consumer tools
  • Current monitoring of electronic circuits
  • Overcurrent protection
  • Ground fault detectors
  • Robotics
  • Industrial process control
  • UPS and telecommunication power supplies
  • Welding current monitoring
  • Battery management systems in mobile equipment
  • Watt meters
  • Variable speed drives