Cannon 50 Ohm Connectors PRECISION SMA Cannons precision SMA connectors feature the MIL-C-39012 Series SMA interface and envelope configuration. They can be mated with all connectors meeting the MIL specification dimensions. Designed for use with a variety of subminiature coaxial cables, superior results are obtained from DC to 18 GHz when used with semi- rigid cables and from DC to 12.4 GHz with flexible cable.These connectors are manufactured with beryllium copper bodies which are gold plated or stainless steel bodies which can be supplied with Key Features either a gold plated or passivated finish. Military grade Cannon also offers a range of commercial SMA brass bodied connectors. For further details, please Rugged stainless steel design see page 13. Intermateable with all SMAs to Mil-C-39012 Frequency range DC to 18 GHz MMAATTIINNGG IINNTTEERRFFAACCEESS 7,92 4,83 0.91 (.312) (.190) (.036) A/F HEX MIN 5,44 4,55 4,62 (.214) (.179) (.182) MAX 1.27 1,27 (.050) (.050) 2,92 .250-36, .250-36, (.115) UNS-2A 2,54 UNS-2B 1,98 (.100) THD. THD. (.078) MAX MAX 2,54 REFERENCE (.100) PLANE MAX REFERENCE PLANE PLUG JACK Dimensions shown in mm (inch) Specifications and dimensions subject to change www.ittcannon.com 6Cannon 50 Ohm Connectors PRECISION SMA SSPPEECCIIFFIICCAATTIIOONNSS Impedance 50 nominal ELECTRICAL Frequency Range 0 to 18.0 GHz Voltage Rating Connectors for RG178/U series cable: At Sea Level=170 Vrms. At 21km (70k feet) = 45 Vrms Connectors for RG316/U series cable: At Sea Level = 250 Vrms. At 21km (70k feet) = 65 Vrms Connectors for RG142/U series cable: At Sea Level = 335 Vrms. At 21km (70k feet) = 85 Vrms 5000 M minimum Insulation Resistance Center Contact = 3.0 m maximum initial. 4.0 m maximum after environment Contact resistance Outer Contact = 2.0 m maximum initial. 2.0 m maximum after environment Braid to Body = 0.5 m maximum Contact Current Rating 2.0 A dc maximum Insertion Loss 0.06 x freq. GHz tested at 6 GHz -60 dB minimum 2 - 3 GHz RF Leakage Connector Configuration Voltage Standing Wave Ratio (VSWR) Cable group Straight Right Angle To 18 GHz or 80% of upper cut-off RG178/U braided 1.20 + .025F 1.20 + .03F frequency of the cable , whichever is lower. RG316/U braided 1.15 + .02F 1.15 + .03F RG142/U braided 1.15 + .01F 1.15 + .02F Applicable to 50 cables only.(F = GHz) Connectors used with RG316/U series cable = 750 Vrms Sea Level Dielectric Withstanding Voltage (DWV) Corona Level Connectors used with RG316/U series cable = 190 V 21km (70k feet) minimum MECHANICAL Engagement Design SMA per MIL-C-39012, Series SMA Engagement Forces Torque: 0.23 Nm (2 in. lbs.) maximum 0.03 Nm (4 in. ozs.) minimum. (For captivated contacts) Contact Torque 0.8 Nm to 1.1 Nm (7 to 10 in. lbs.) Mating Torque Locknut Torque 1.4 Nm to 1.7 Nm (12 to 15 in. lbs.) minimum Coupling Nut Retention 267 N (60 lbs.) minimum Materials Body & Body Components: Non-magnetic stainless steel or beryllium copper. Female Contacts: Beryllium copper. Insulators: PTFE. Crimp Ferrule: Annealed copper alloy. Gaskets: Silicone rubber Finish/Plating Center Contacts: Gold plated. Other Metal Parts: Gold plated or passivated (as specified) to meet the finish and corrosion requirements of MIL-C-39012 ENVIRONMENTAL Temperature Rating -65 C to 165 C MIL-STD-202, Method 101, test condition B, 5% salt solution Corrosion (salt spray) MIL-STD-202, Method 204, test condition D (20 G s) Vibration, High Frequency Shock MIL-STD-202, Method 213, test condition I (100 G s) Thermal Shock MIL-STD-202, Method 107, test condition B Moisture Resistance MIL-STD-202, Method 106. No measurements at high humidity. Insulation resistance shall be 200 M minimum within 5 minutes after removal from humidity. 500 matings minimum GENERAL Connector Durability Contact Captivation Unless otherwise specified, all connectors feature captivated contacts. When captivated the contacts will withstand 26.7 N (6 lbs.) minimum axial force. Cable Retention When properly assembled to the compatible single braided coaxial cable, the retention is equal to the breaking strength of the cable. Body Plating Options The following part number suffices can be specified for Precision SMA Connectors ..... 310 gold body, gold coupling nut ..... 890 passivated body & coupling nut Dimensions shown in mm (inch) except Direct Solder Types gold body, passivated coupling nuts Specifications and dimensions subject to change www.ittcannon.com 7