Cannon 50 Ohm Connectors SMB / SMC Cannon s SMB Snap-on and SMC Screw-on subminiature coaxial connectors have been specifically engineered for high performance and high reliability applications in both military and commercial equipment operating at frequencies up to 4 GHz (SMB) and 12.4 GHz (SMC). The Snap-on mating engagement allows a rapid connect/disconnect facility. The Screw-on mating engagement allows a low VSWR under vibration conditions Key Features and a matched impedance of 50 ohms. Cannon SMB/SMC connectors are compatible with all Rapid connect / disconnect (SMB) SMB/SMC type connectors conforming with MIL-C-39012, Standoff legs on PCB BS 9210, UTE C93 561, UTE C93 562, CECC 22 130 and Frequency range to 12.4 GHz (SMC) or CECC 22 140. 4 GHz (SMB) Vibration withstanding design (SMC) In addition to this range we also offer FAKRA SMB connectors for automotive applications. MMAATTIINNGG IINNTTEERRFFAACCEESS 1,63 (.064) 3,45 SMB (SNAP-ON) (.135) 3,71 6,61 (.146) (.260) MAX MAX REF PLANE REF PLANE PLUG JACK 5,95 SMC (SCREW-ON) (.234) 10-32, UNF-2A A/F HEX 3,71 (.146) MAX REF PLANE REF PLANE PLUG JACK NOTES 3) Slide-on versions of most SMB 1) Inside diameter of female contact 2) All undimensioned pictorial representations are for reference female styles, prefix 052, are available. to meet VSWR mating characteristics For slide-on male interconnection use and connector durability when mated purposes only. male SMB (snap-on type). with a 0,48 0,53 (.019 .021) diameter male contact. Dimensions shown in mm (inch) Specifications and dimensions subject to change www.ittcannon.com 19Cannon 50 Ohm Connectors SMB / SMC SSPPEECCIIFFIICCAATTIIOONNSS 50 Impedance ELECTRICAL Frequency Range SMB = 0 to 4.0 GHz. SMC = 0 to 12.4 GHz Voltage Rating Connectors for RG196/U series cable: At Sea Level = 300 Vrms. At 21km (70k feet) = 75 Vrms Connectors for RG188/U series cable: At Sea Level = 400 Vrms. At 21km (70k feet) = 100 Vrms 1000 M minimum Insulation Resistance Center Contact = 6.0 m maximum initial. 8.0 m maximum after environment Contact resistance Outer Contact = 1.0 m maximum initial. 1.5 m maximum after environment Braid to Body = 1.0 m maximum 1.5 A dc maximum Contact Current Rating 0.25 dB maximum 4 GHz Insertion Loss SMB = -55 dB minimum 2 - 3 GHz RF Leakage SMC = -60 dB minimum 2 - 3 GHz Connector Configuration Voltage Standing Wave Ratio (VSWR) SMB SMC To 10 GHz or 80% of upper cut-off Cable group Straight Right Angle Straight Right Angle frequency of the cable, whichever is lower. RG196/U Series 1.30 + .04F 1.45 + .06F 1.25 + .04F 1.40 + .06F Applicable to 50 cables only.(F = GHz) RG188/U Series 1.20 + .04F 1.35 + .04F 1.20 + .04F 1.30 + .04F SMB per MIL-C-39012, Series SMB. SMC per MIL-C-39012, Series SMC. MECHANICAL Engagement Design SMB: Initial = 62 N (14 lbs.) max. engagement. After 500 matings = 62 N (14 lbs.) Engagement Forces max. engagement and disengagement = 8.9 N (2 lbs.) min. disengagement. SMC: 0.11 Nm (16 in. oz. ) torque max. SMB: N/A SMC: 0.42 to 0.50 Nm (60 to 70 in.oz) Mating Torque 0.56 to 0.64 Nm (80 to 90 in. oz) Locknut Torque SMB: N/A SMC: 155 N (35 lbs. ) minimum Coupling Nut Retention Body, Body Components and Male Contacts: Brass, half hard. Female Contacts: Materials Beryllium Copper, heat treated. Insulators: PTFE. Lockwashers: Phosphor Bronze. Crimp Ferrule: Annealed copper alloy. Gaskets: Silicone rubber Center Contacts: Gold plated. Other Metal Parts: Gold plated or nickel plated (as Finish/Plating specified) to meet the finish and corrosion requirements of MIL-C-39012 -65 C to 165 C ENVIRONMENTAL Temperature Rating MIL-STD-202, Method 101, test condition B, 5% salt solution Corrosion (salt spray) MIL-STD-202, Method 204, SMB: test condition B (15 G s). SMC: test condition D (20 Gs) Vibration, High Frequency MIL-STD-202, Method 213, SMB: test condition B, 75 G s 6 milliseconds, 1/2 sine. Shock SMC: test condition C, 100 G s 6 milliseconds, 1/2 sine. MIL-STD-202, Method 107, test condition B, except high temperature shall be 85 C. Thermal Shock High temperature shall be 200C for connectors using 200C cables. MIL-STD-202, Method 106, when interface gasket is used. No measurement at high humidity. Moisture Resistance Insulation resistance shall be 200 M minimum within five minutes after removal from humidity. 500 matings minimum Connector Durability GENERAL Unless otherwise specified, all connectors feature captivated contacts. When captivated the Contact Captivation contacts will withstand 17,8 N (4 lbs.) minimum axial force. CECC 22 130 = 10 N(2.25 lb.) When properly assembled to the compatible single braided coaxial cable, the Cable Retention retention is equal to the breaking strength of the cable. The following part number suffices can be specified for SMB/SMC Connectors: Body Plating Options ..... 220 gold body ..... 910 nickel body ..... C90 nickel body Dimensions shown in mm (inch) Specifications and dimensions subject to change www.ittcannon.com 20