The Vishay 34 PHE absolute position sensor provides 10-turn linear or rotary displacement sensing with a 3600° range. Using non-contact Hall-effect technology, it delivers up to ±1% linearity (full stroke), 1° resolution, and a service life of more than 10 million cycles.
According to Vishay, the 34 PHE is priced 40% lower than previous-generation devices. It is designed for servo loop motion control systems requiring high accuracy and long-term stability in harsh environments. Typical applications include industrial motor and actuator displacement tracking, solar panel alignment systems, and flow control valve positioning.
The sensor features IP65 sealing and withstands vibration up to 20 g and shock up to 50 g. Integrated reverse-voltage and overvoltage protection (−14 VDC and +28 VDC) reduces the need for external protection circuitry. It supports single or dual analog ratiometric outputs or a digital PWM output. In dual-output mode, the two channels track position in opposite directions to enable basic fault detection. The 34 PHE reports its position immediately after power-up, even following a power loss, without requiring recalibration, homing, or initialization.
Samples and production quantities of the sensor are available now, with lead times of 14 weeks.
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