RedRock® RR111 Series TMR Analog Magnetic Sensor

The RedRock® RR111 Series is a magnetic sensor with a continuous analog output linearly proportional to an applied magnetic field. Ideal for use in medical, industrial, automotive, and consumer applications, they are based on patented Tunneling Magnetoresistance (TMR) technology with seamless CMOS integration. The RR111 enables applications like proximity sensing, and continuous level detection. The RR111 features a low average current drain (1.6 mA) for a continuously active magnetic sensor and temperature range from -40°C up to 85°C. It comes in an SOT-23-3 package measuring 2.9 x 1.6 x 1.2 mm as well as an LGA-4 package measuring just 1.4 x 1.4 x 0.45 mm.

Please note:  This Product Series is at END-OF-LIFE and is not recommended for new designs. It has been replaced by the RR112 series.  For new designs, please consult the end of life announcement which specifies recommended new RedRock series replacements.

RedRock® RR111 TMR Analog Sensor Series Features

  • Zero Hysteresis
  • Low Current of 1.5 mA
  • Omnipolar Sensitivity
  • Continuous Operation
  • Temperature Rated up to 85°C
  • RoHS & REACH Compliant


  • Proximity Detection
  • Rotary Sensing
  • Fluid Level Detection
  • Door & Lid Closure Detection
  • Utility Meters
  • Portable Medical Devices
  • Motor Controllers
  • Consumer Electronics
  • Wake-Up mProcessor
RedRock TMR 111 Analog Magnetic Sensor

RedRock® RR111 TMR Analog Sensor SERIES DIMENSION

In Millimeters (Inches)
  • RedRock® RR111 TMR Analog Sensor mechanicals
  • RedRock RR111 TMR Selection Table


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