CTS 220 Series Rotary DIP Switches CTS 221 series of compact rotary DIP switches offer a reliable switching solution for a wide variety of applications. The 221 series provides both standard through-hole mounting & gull-wing configurations for enhanced application flexibility. Features and Benefits<BR/><BR/>Hexadecimal & binary coded outputs available.<BR/>Clockwise rotation.<BR/>Washable with a durable wiping contact.<BR/>Gold plated beryllium copper contacts offer a reliable connection.