54100 and 54140 Miniature TMR Sensors

Littelfuse December 5, 2023

Littelfuse’s 54100 and 54140 miniature Tunnel Magneto-Resistance (TMR) effect sensors offer unmatched sensitivity and power efficiency, revolutionizing the magnetic sensing industry. The key differentiator of the 54100/54140 sensors is their remarkable sensitivity and 100x improvement in power efficiency compared to Hall Effect sensors. These sensors offer activation in the x-y plane instead of the traditional z-axis, providing enhanced functionality. Additionally, they feature a wider operating temperature range of -40 to 100°C, surpassing other solutions available on the market. The 54100 flange-mount sensor’s compact housing dimensions measure 25.5 x 11.00 x 3.00 mm, making it perfect for various applications. Its versatile case design allows for both screw and adhesive mounting, ensuring easy installation. With a 3-wire configuration (Power – Ground – Output) and digital output, this sensor can switch up to 5.5 Vdc and 3.0 mA output current, providing reliable and accurate results. The sensor leads offer flexibility, with standard lead lengths of 300 mm and 1000 mm, and customization options for high-volume production needs.

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