Low-Noise TMR Magnetic Field Sensor


Click here for full STJ-220 TMR sensor description and datasheet

Features and Benefits

  • Superior field sensitivity of < 1 nanotesla
  • Field sensitivity of 5 nanotesla at 1 Hz
  • Compact size (0.9x0.9x0.3 mm)
  • Linear, bipolar response
  • Tapered vertical probe design allows easy access to cramped areas
  • Probe length is customizable
  • Designed for use with the AL-05 signal conditioning board.

Product Description

The STJ-220 is Micro Magnetics' low-noise single-axis magnetic sensor in probe package. The sensor die features Micro Magnetics' low-noise SpinTJ sensor. The die is 0.89 mm square and 300 microns thick. 

The field sensitivity of the STJ-220 is 5 nT/Hz0.5 at 1 Hz and better than 1 nT/Hz0.5 at high frequencies. These values are 10,000 and 50,000 times smaller than the magnetic field of the Earth, respectively.

The STJ-220 comes with a shielded multi-pin connector. This connector is designed to mate to our AL-05 signal conditioning board. 

Micro Magnetics also offers custom solutions -- we design and build custom sensing products which are tailored to the customer's specific application.

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Products: MTJ Field Sensor Products: Circuit Scan CS1000