Throttle Position Sensor in Hollow- and D-Shaft Versions

18th March 2009
ES Admin
Vishay has announced a new throttle position sensor in hollow- and D-shaft versions that features Hall effect technology for applications in harsh environments. The Hall effect technology of the new 981 HE gives it the ability to perform in conditions involving high-frequency vibrations up to 20 G and shocks up to 50 G over a temperature range of –45°C to +125°C, providing a strong advantage over other technologies.
The sensor is optimized 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.

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 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 5 V ±10%, with other values available upon request. The device features a typical supply current of 10 mA, and 16 mA for PWM output. The 981 HE offers +20-V over voltage protection and –10-V reverse voltage protection. The recommended load resistance is 1 kΩ for analog output and PWM output. Redundant output signals are available upon request.

Samples of the 981 HE are available now. Production quantities will be available in Q1 2009, with lead times of 12 weeks for large orders.

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