Rugged Hall-sensor throttle position sensor, in distribution

February 16, 2015 // By Graham Prophet
Distributor TTI has a throttle position sensor by Vishay, in hollow- and D-shaft versions, that features Hall effect technology for applications in harsh environments.

The Hall effect technology of the 981 HE device gives it the ability to perform in conditions involving high-frequency vibrations up to 20g and shocks up to 50g over a temperature range of −45°C up to +125°C, providing margins over other technologies.

With all electrical angles available up to 360° with no dead band, the device features accurate linearity down to ±0.5%. The sensor offers a long life greater than 10 million cycles for the D-shaft version, and greater than 5 million cycles for the hollow-shaft version. The 981 HE component provides continuous performance for the life of the device with no drift of linearity. Spring-loaded versions of the device are also available.

The sensor offers a supply voltage of 5V ±10%, with other values available upon request. The device has a typical supply current of 10mA, and 16mA for PWM output. The 981 HE has +20V over voltage protection and −10V reverse voltage protection. The recommended load resistance is 1 kΩ for analogue output and PWM output.

The sensor is optimised for foot pedal position sensors, throttle position sensors, steering position sensors, drive-by-wire, lift and shuttle position sensors, tilt control and tilt positioning feedback, and suspension system position sensors in marine, avionics, fork lift trucks, farm equipment, cranes, and automotive applications.