Vishay – Tough linear Hall-effect position sensor offers strokes from 0 to 10mm

Jan 24 2012 - Subs & Systems [More Subs & Systems Articles]

A new linear position sensor featuring non-contacting Hal- effect technology has been introduced by Vishay.  Covering short electrical strokes to 10mm max and available with a spring return system, the 20 LHE is optimized for applications in harsh environments requiring long-life sensors.

The Hall-effect technology gives the sensor the ability to perform in conditions involving high-frequency vibrations up to 20G and shocks up to 50G. With a long life of 10 million cycles, the device is ideal for short stroke measurements in industrial applications including tillers heads for forklift steering; tractor gear shifts; truck tilt sensors; and pressure measurement and pedal displacement systems.

The 20 LHE features accurate linearity down to ±1%. The sensor offers analog ratiometric or digital PWM output, and it provides continuous performance for the life of the device with no drift of linearity. The 20 LHE operates with a supply voltage of 5V ±10% and supply current of < 6mA typical, and it withstands +0V over-voltages and -10V reverse voltages. The recommended load resistance is 1kohm for analog output and PWM output. The device is compliant to RoHS directive 2002/95/EC, says the company.

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