TMR Magnetic Microsensor Probe


Click here for full STJ-030 TMR sensor description and datasheet

Features and Benefits

  • Superior field sensitivity of 5 nanotesla
  • Active areas as small as 1x2 microns
  • On-board ESD protection
  • Small size
  • Compact SMA connector
  • Optional sensor polishing allows an approach distance of < 5 microns (0.0002")

Product Description

The STJ-030 is a low-field magnetic sensor probe designed for magnetic imaging and scanning applications. The sensor probe features a Micro Magnetics SpinTJ sensor with an active (sensing) area of just a few microns (~0.0001") in size. This allows the STJ-030 to detect field signatures from single magnetic particles or microscopic magnetic media.

The field sensitivity of the STJ-030 is 5 nT, which is ten thousand times smaller than the magnetic field of the Earth. The geometry of the STJ-030 probe makes it perfect for magnetic imaging of currency, magnetic films, or media (see our image library for some relevant results).

The STJ-030 is a two-terminal device which is accessed through a standard SMA connector.

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Products: MTJ Field Sensor Products: Circuit Scan CS1000