C&K has released its smallest diameter rotary switch series, providing design engineers with a switch option that reduces board space by 50%. Available with two- to eight-positions, the RM series, single-pole rotary switches feature an ultra-miniature, 9.2 mm body diameter and gold-plated contacts for reliable operation.

Ideal for use in next-generation building automation systems, including lighting and fan controls, test and measurement equipment, and telecommunication and radio systems, the RM series rotary switches deliver economical, subminiature solutions for applications that require reliable, multiple-position switches with positive detents that provide tactile feedback.

Available as a single-pole rotary switch with two- to eight-positions, the space-saving RM series switches are equipped with either an extended shaft with one of two standard knob options or a flush actuator with a screwdriver slot for adjustment. Gold-plated contacts provide reliable switch operating lifespans of 2,000 cycles with an operating force of 270+/-100gf cm. RM series contacts are rated for 0.5 A at 24 V_DC and 0.2 A at 48 V_DC, insulation resistance of 100 MΩ at 500 V_DC, and dielectric strength of 500 V_AC for one minute. Operating temperatures for the series span from -40°C to +85°C and RM series switches also feature insert molded terminals to prevent contamination during soldering.