High-res linear sensor tracks small displacements
The 40 LHE linear position sensor from Vishay measures strokes from 0 to 40 mm with ±1% full-stroke accuracy. Using Hall effect technology, it delivers 12-µm resolution and a lifespan exceeding 10 million cycles, making it well-suited for servo loop motion control systems that monitor small displacements. Typical applications include infrastructure integrity monitoring (crackmeters), in-line process measurement, industrial and medical robotic gripping, and throttle/pedal sensing in e-bikes and motorcycles.
Built for harsh environments, the 40 LHE operates from -40°C to +85°C and features IP67 sealing. It withstands high-frequency vibration up to 20 g and shock up to 50 g, with integrated input protections against reverse voltage (-10 VDC) and overvoltage (+20 VDC).
Its compact 35×14.5×28-mm design includes two face-mounting holes for horizontal or vertical installation. The sensor is available with or without a spring return and offers analog ratiometric or PWM output, with a recommended load resistance of 1 kΩ. It operates from a 5-VDC ±10% supply and draws less than 16 mA typically.
Samples and production quantities of the 40 LHE are available now, with 12-week lead times.
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