63 Series SPDT Failsafe Switches The DowKey 63 Series SPDT Failsafe Relay provides an enclosed actuator for use in environments where dust or moisture may be encountered. Typical applications for the 63 Series include: • ILS Air Traffic Control Equipment • UHF/UHF Standby Transmitters and Receivers DowKey® 63 Series SPDT Failsafe Switches RF Characteristics Specifications : Operating Voltage: (across temperature range) 12 Vdc (11-14 Vdc) 28 Vdc (24-32 Vdc) Coil Current (Nominal): 12 Vdc 255 mA 28 Vdc 112 mA Operate Time: 20 mS maximum Operating Temperature: -25ºC to +65ºC Mechanical Life, Cycles: 1 x 106 minimum Nominal Weight: 6.0 oz., (170g.) Frequency GHz VSWR (max) Isolation dB (min) Ins. Loss dB (max) RF Power Watts (CW) 0-.5 .5-2 2-3 1.10 1.30 1.40 70 50 45 0.10 0.20 0.30 150-100 100-75 75-50 Connectors and Part Numbers Nominal Coil Voltage Connector Type Failsafe Standard SPDT 12 Vdc 28 Vdc N N 63-2201 63-2301 72 DowKey Microwave Corporation 1667 Walter Street, Ventura, California 93003 (805) 650-0260 • FAX (805) 650-1734 63 Series Mechanical Electrical 73 DowKey Microwave Corporation 1667 Walter Street, Ventura, California 93003 (805) 650-0260 • FAX (805) 650-1734