MS-156C3 1.35mm Subminiature Coaxial Switches Hirose Electric MS-156C3 1.35mm Subminiature Coaxial Switches are lightweight (0.014g), low-profile (1.35mm) switches developed for inspection of high-frequency circuits used in portable terminals. Hirose MS-156C3 switches feature low insertion loss and a wide frequency range. Applicable frequencies range over a wide band, from DC to 11GHz. The series provides 2W rated power and operates over a -40°C to +85°C temperature range.