Omnipolar Magnetoresistive Sensors 2SS52M Series

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2SS52M Series position sensors have magnetoresistive material integrated on silicon and encapsulated in a plastic package. The integrated circuit provides a digital output in response to very low magnetic fields. Though this signal is identical to our digital Hall effect sensors, it can be achieved by magnetoresistive sensors at much greater sensor-to-magnet distances. OPERATING MODE 2SS52M sensors are operated by magnetic fields (North or South pole) parallel to the magnetoresistive element.

NOTE: Due to the inherent high sensitivity of 2SS52M sensors, stray magnetic fields which are parallel to the IC may affect operation.


  • Low gauss operation can extend sensing distance to one inch or more, depending on magnet size
  • Omnipolar - can be operated with either North or South magnetic pole
  • Operating speed: 0 kHz to over 100 kHz
  • Digital current sinking output
  • Small size


  • Weaker field/ Larger detection distance
  • Polarity independant applications
  • resence/absence detection
  • Lid sensor for laptop computers
  • Position sensor for material handling equipment
  • Cylinder position sensing in pneumatic cylinders