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TMR Solid-State Magnetic Sensor, Low Noise, SMA Probe (STJ-230)

Regular price $1,500.00

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The STJ-230 is Micro Magnetics' low-noise single-axis magnetic sensor in SMA 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-230 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-230 is a two-terminal device which is accessed through a standard SMA connector.


  • Superior field sensitivity of < 1 nanotesla
  • Field sensitivity of 5 nanotesla at 1 Hz
  • Compact size (0.9x0.9x0.3 mm)
  • Linear, bipolar response
  • Compact SMA connector

STJ-230 Datasheet