Version 7

     

     

    The element14 ESSENTIALS of RF and End Launch Applications discusses RF communication fundamentals and some applications of end launch connectors. To extend the knowledge covered in the main module, this supplementary guide discusses the types of related components that can be used for products or prototyping.

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    SMPM Coaxial, Straight Jack, Through Hole Vertical, 50 ohm

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    The SMPM bullet adapter provides the same coveted blind mate functionality as the larger SMP size connectors, mitigating radial and axial misalignment with negligible change to VSWR and other signal losses. The SMPM-series is good for test equipment and racked electronics, where footprint space is a premium and mating boards together is difficult.

    35% smaller than SMP connectors

    DC, up to 65 GHz

    Bullet adapter provides Blind Mate capabilities

    Available in PC mount, End Launch, and Cabled styles

    Manufactured with high-quality beryllium copper and brass

    Designed to meet MIL-PRF-39012 and MIL-STD-348 specifications

     

    SMPM Coaxial, Straight Plug, Solder, 50 ohm

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    The SMPM family includes PC mount and End Launch styles, straight/right-angled, .047 cabled connectors, and sealable flange mounts. All male connectors are offered as a full detent or smooth bore designs for your preference of separation forces.

    DC, up to 65 GHz

    Bullet adapter provides Blind Mate capabilities

    Available in PC mount, End Launch, and Cabled styles

    Manufactured with high-quality beryllium copper and brass

    Designed to meet MIL-PRF-39012 and MIL-STD-348 specifications

     

    1.85mm Coaxial, Edge Launch Jack, Solder, 50 ohm, Beryllium Copper

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    The 1.85mm Screw On Board Edge, End Launch Jack is designed for use in a variety of applications while delivering signal integrity in demanding environments. Easy to assemble and disassemble to a PCB, they can be connected with solder or solderless, and adjustable to varying board thicknesses.

    Nickel-plated brass body

    Gold-plated beryllium copper contact

    White PTFE insulator

    Stainless steel bolt and washer

    Impedance: 50 ohm

    Typical VSWR 1.20-1.25

    Maximum frequency: 67 GHz

     

    Round Contact, SMA Coaxial, Straight Jack, Board Edge / End Launch, 50 ohm

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    The SMA Self-Fixture End Launch Jack Assembly with round contact attaches directly to a coplanar waveguide circuit board and operates up to 18 GHz with good return loss values. This enhanced end launch connector properly aligns and holds the center contact of a coaxial connector to the circuit board plane without the need for fixtures.

    Gold plated brass body

    Round female (socket) beryllium copper contact with gold plating

    PTFE insulator

    50 Ohm impedance

    0-18 GHz frequency range

    Working voltage 335 VRMS max. at sea, level Dielectric withstanding voltage 1000 VRMS min. at sea level

     

    145-0701-802 -  End Launch Jack RF / Coaxial Connector, SMK Coaxial, Straight Jack, Screw, 50 ohm, Beryllium Copper

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    The Johnson 2.92mm Connector provides an end launch solution for demanding applications requiring high frequency transmission. Although similar to the SMA interface, a smaller internal body diameter (2.92mm) and air dielectric provide a higher cutoff frequency.

    Performance to 40 GHz.

    Female contacts have a unique three-slot construction, which enhances connectivity by creating a more rugged connector while reducing the chance of intermittent connections.

    Connector mating interface per MIL-STD-348

    The plug connector VSWR is 1.20 Max to 40 GHz and a 12 inch SMK plug to plug cable assembly performs better than 1.35 VSWR to 40 GHz.

    The Field Replaceable Jacks are teamed with a high quality hermetic seal feed thru for use in sealed circuit modules.

    The 2.92mm plug interface employs more precise dimensions than an SMA and uses a shorter snub nose male pin such that the connector bodies align before the contacts engage.

     

    SMA Coaxial, Straight Jack, Solder, 50 ohms, Beryllium Copper

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    A straight SMA Coaxial Jack with gold-plated beryllium copper contact. This is used to transition microwave energy from coaxial to planar transmission line structures. This patent-pending connector provides a unique solution for microwave engineers who fabricate circuit designs on fragile high-frequency board substrates. The in-line connector design minimizes reflections as compared to a right-angle (perpendicular) pc mount transition.

    1.05 + 0.02F (GHz) Maximum at 0 to 18GHz,

    170VRMS Maximum at sea level, 45VRMS maximum at a 70K.ft working voltage

    3mΩ (center) and 2mΩ (outer) Maximum contact resistance

    500-cycle Minimum durability

    7 to 10-inch.lbs Mating torque

    PTFE insulator

     

    SMA Coaxial, Straight Jack, Solder, 50 ohms, Beryllium Copper

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    An RF/Coaxial Connector, SMA straight jack receptacle with gold plated brass body; gold-plated contact, printed circuit board style, solder termination type and Surface Mount.

    50Ω Impedance

    18GHz Maximum frequency

    5000MΩ Minimum insulation resistance

    500-cycle Minimum Durability

     

    SMA Coaxial, End Launch Jack, Solder, 50 ohms, Beryllium Copper, .062” Board Thickness

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    This end launch SMA RF Coaxial Connector is attached to the circuit board by inserting the board edge between the legs and soldering the legs and center conductor to pads on the board. For optimum high-frequency performance, the connector to circuit board transition must be adjusted for low VSWR. To compensate for the transition from coax to microstrip, trace widths "A" and "B" must be adjusted based on circuit board thickness. When properly adjusted, this technique yields a low VSWR over a wide bandwidth.

    Gold-plated finish

    Round contact

    5000MΩ Insulation Resistance

    500-cycle Minimum Durability

     

    SMA Coaxial, End Launch Jack with Thru Hole Terminals, 50 ohms, Beryllium Copper

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    An RF/Coaxial Connector, SMA PC mount jack receptacle with gold plated brass body; gold-plated contact, printed circuit board style, solders termination type, and end launch mount. This high-frequency end launch connector is designed to attach directly to a high-frequency coplanar waveguide (CPW) circuit board transmission line, although other lines such as microstrip can be used with good results. These connectors can be used on high-frequency PC board substrate layers as thin as 10 MIL pin.

    50Ω Impedance

    26.5GHz Maximum frequency

     

    End Launch, SMA Coaxial, Jack, Solder, 50 ohms, Beryllium Copper, .031” Board Thickness

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    A straight SMA Coaxial Jack with gold-plated beryllium copper contact. It is attached to the circuit board by inserting the board edge between the legs and soldering the legs and center conductor to pads on the board. For optimum high-frequency performance, the connector to circuit board transition must be adjusted for VSWR.

    335VRMS Working voltage

    5000MΩ Minimum insulation resistance

    3mΩ Maximum initial contact resistance

    7 to 10-inch.lbs Mating torque

    500-cycle Minimum durability

    PTFE fluorocarbon per ASTM D 1710 and ASTM D 1457 insulators

     

    *Trademark. Cinch Connectivity Solutions is a trademark of Bel Fuse Inc. Other logos, product and/or company names may be trademarks of their respective owners.