64 Series Transfer Relay The DowKey 64 Series SPDT Transfer Failsafe Relay provides an enclosed actuator for use in environments where dust or moisture may be encountered. Typical applications for the 64 Series include: • ILS Air Traffic Control Equipment • UHF/UHF Standby Transmitters and Receivers DowKey® 64 Series Transfer Relay 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: 7.0 oz., (198g.) Frequency GHz VSWR (max) Isolation dB (min) Ins. Loss dB (max) RF Power Watts (CW) 0-0.5 0.5-1.5 1.5-3.0 1.10 1.20 1.40 30 25 20 0.10 0.20 0.40 150-100 100-50 50-25 Connectors and Part Numbers Nominal Coil Voltage Connector Type Failsafe Standard Transfer 12 Vdc 28 Vdc N N 64-2201 64-2301 74 DowKey Microwave Corporation 1667 Walter Street, Ventura, California 93003 (805) 650-0260 • FAX (805) 650-1734 64 Series Mechanical Electrical 75 DowKey Microwave Corporation 1667 Walter Street, Ventura, California 93003 (805) 650-0260 • FAX (805) 650-1734