MRSS Miniature Rotary Switches TE Connectivity's (TE) Alcoswitch MRSS Miniature Rotary Switches are surface-mount and through-hole rotary switches with horizontal and vertical mounting configurations. These switches are offered in hexadecimal and binary code configurations, and achieve a high degree of reliability using 2 points of contact. TE Alcoswitch MRSS Miniature Rotary Switches are suitable for a variety of applications including elevators, security systems, lighting systems, machinery, and telecommunications.