Two new industrial-grade panel control models that include a push-pull switch and rotary switch were recently announced by Bourns, Inc, Riverside, CA. Model 54, the new ½-in. panel control is an extension of Model 51/53 Series with an added double-pole, double-throw (DPDT) push-pull switch module. Model 56 is a new ½-in. panel control and is also an extension of the Model 51/53 Series with an added single-pole, double-throw (SPDT) rotary switch module. Developed to match the requirements of a broad range of medical applications, the panel control models are well-suited for use in test/measurement and communications equipment. Model 54 is also for medical diagnostic and professional audio equipment, while the Model 56 is designed for use in medical laboratory equipment.

The new models measure 12.5mm and feature metal bushings and shafts, splash seals, and a range of linear and audio resistance tapers. Rotational life for both models is 50k cycles with contact resistance at 100 mÙ for Model 54 and 30 mÙ for Model 56. Both models are RoHS compliant.