Micro Magnetics is a leader in commercial applications of spintronics. The company provides innovative solutions, products, and services in magnetic sensing and semiconductor metrology. Micro Magnetics manufactures and supplies magnetic tunneling junction sensors, magnetic current imaging systems, magnetic field generators, and semiconductor process equipment. It also provides failure analysis and magnetic imaging services, and custom sensing and imaging solutions.



			Low-Noise TMR Magnetic Field Sensor (Probe) STJ-220 Click here for full STJ-220 TMR sensor description and datasheet Order Online 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/Hz^0.5 at 1 Hz and better than 1 nT/Hz^0.5 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. [Return to SpinTJ Product Page] Copyright © 2002-2025 Micro Magnetics, Inc. All rights reserved.