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Bourns Introduces Advanced Hybrid Position Sensor Designed for Certain Harsh Environment RS-485-based Applications

New Model HES38U-RS485 offers high quality, long life solution that features a 5 million shaft revolution rotational life and an IP65 rating

RIVERSIDE, Calif., April 28, 2021 - Bourns, Inc., a leading manufacturer and supplier of electronic components, today introduced an innovative hybrid position sensor for RS-485-based applications in certain harsh environments. Designed to meet the specifications of heavy-duty applications requiring long cycle life and high reliability, the new Bourns® Model HES38U-RS485 hybrid position sensor offers a rotational life of up to 5 million shaft revolutions with 10 turns of absolute position. It has an Independent Linearity specification of ±0.1 % max, an IP65 seal rating and an operating temperature range of -40 °C to +85 °C.

The advanced hybrid design enables the Model HES38U-RS485 to deliver enhanced linearity, resolution and accuracy. Highly repeatable and resistant to vibration/shock and fluid/dust ingress, this robust position sensor is an optimal solution for a variety of industrial feedback applications including patient platform positioning, 3D imaging position, pneumatic control valve position and actuator motor position as well as for automated manufacturing robotics.

It features a 6 mm diameter slotted shaft supported by a mechanical angle of 3600 ° ±10 ° and is available with customized longer cable lengths and in a servo mount configuration. The Bourns® Model HES38U-RS485 is available now and is RoHS* compliant. For more detailed product information, please see:

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

About Bourns

Bourns, Inc., is a leading manufacturer and supplier of position and speed sensors, circuit protection solutions, magnetic components, microelectronic modules, panel controls and resistive products. Headquartered in Riverside, California, USA, Bourns serves a broad range of markets, including automotive, industrial, consumer, communications, non-critical life support medical (low/medium risk), audio and various other market segments. Additional company and product information is available at

Bourns® and the Bourns logo are registered trademarks of Bourns, Inc. and may be used only with the permission of Bourns and proper acknowledgement. Other listed names and brands are trademarks or registered trademarks of their respective owners.

Bourns® products have not been designed for and are not intended for use in "lifesaving," "life-critical" or "life-sustaining" applications nor any other applications where failure or malfunction of the Bourns® product may result in personal injury or death. See Legal Disclaimer Notice

Agency Contact:
Annette Keller
Keller Communication
Company Contact:
David Scofield
Bourns, Inc.
(951) 781-5054