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SMB Connectors
SMB

Features & Benefits
  • Broadband performance with low reflection DC to 4 GHz provides low cost connector combined with high quality.
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  • Quick connect/disconnect snap-on mating reduces installation time.
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  • Various plating options in nickel, gold, and tin lead. Selective plating provides corrosion resistance finish as well as good solderability characteristics.
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  • SMB PCB slide-on plug and jack allows board-to-board mounting with a low insertion force. This is ideal for mating a high number of connectors on a pair of PCB's.
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    Applications
  • Antennas
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  • Automotive
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  • Base Stations
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  • Cable Assemblies
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  • Mil-Aero
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  • Components
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  • Instrumentation
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  • Telecom
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  • Surge Protection
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  • Radios
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  • Satcom
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  • 50 Ω SMB Specifications
    Electrical
    Impedance 50 Ω
    Frequency Range 0-4 GHz with low reflection; usable to 10.0 GHz
    Voltage Rating 335 volts at sea level and 85 volts at 70,000 feet
    Dielectric Withstanding Voltage RG-196: 750 VRMS; RG-188: 1,000 VRMS
    VSWR Straight connector, RG-196/U: 1.30 + .04 f (GHz)
    Right angle connector, RG-196/U: 1.45 + .06 f (GHz)
    Straight connector, RG-188/U: 1.25 + .04 f (GHz)
    Right angle connector, RG-188/U: 1.35 + .04 f (GHz)
    Contact Resistance Center contact: 6.0 mΩ initial, 8.0 after environmental;
    Outer contact: 1.0 mΩ initial, 1.5 after environmental
    Braid to body: 1.0 mΩ initial, after environmental N/A
    MIL-C-39012 Insulation Resistance 1,000 MΩ minimum
    MIL-C-39012 RF Leakage -55 dB minimum @ 2-3 GHz
    MIL-C-39012 Insertion Loss Straight connector: 0.30 dB @ 1.5 GHz
    Right angle connector: 0.60 dB @ 1.5 GHz
    Mechanical
    Mating Snap-on coupling per MIL-STD-348
    Braid/Jacket Cable Affixment Hex crimp
    Center Conductor Cable Affixment Solder
    Captivated Contacts All crimps unless specified otherwise
    Cable Retention Equal to breaking strength of cable employed
    Engagement Forces Engagement: 14 lbs maximum
    Disengagement: 2 lbs minimum
    After 500 matings, 14 lbs maximum engagement and disengagement
    Connector Durability 500 mating cycles minimum
    Material
    Center Contact Female: beryllium copper, gold-plated
    Male: brass or beryllium copper, gold-plated
    Outer Contact Plating Nickel or gold plating as indicated
    Body Brass per QQB-626, or zinc per ASTM B86-71
    Body Plating Nickel or gold plating as indicated
    Insulator TFE
    Crimp Ferrule Annealed copper alloy
    Environmental
    Temperature Range TFE insulators: - 65°C to + 165 °C, Copolymer of Styrene: - 55°C to + 85°C
    Thermal Shock MIL-STD-202 method 107, test condition B (except high temperatures @ 200°C
    Shock MIL-STD-202 method 202, method 13, snap-on, test condition B; 75 G's @ 6 milliseconds ½ sine
    Vibration MIL-STD-202 method 204, snap-on, test condition B; (15 G's)
    Moisture Resistance MIL-STD-202 method 106
    Corrosion MIL-STD-202 method 101, test condition B. 5% salt solution

    Note: These characteristics are typical but may not apply to all connectors.