A revolution in pogopin connector technology.Elastic contact price

　　As analog circuits give way to digital circuits and electronic equipment shifts from wired connections to wireless connections, the design of complete equipment is also shifting from desktop to portable. As designs move toward portability, system durability becomes extremely important.

　　System design engineers have begun to design and construct pre-tested modules and then stack or blind-mate them as a primary construction technique. This requires nanoscale interconnection devices. Leaders in the medical industry and even the military/aerospace industry are pushing systems in this modular direction to meet the reductions in size, weight and current required for complex signals. To meet these challenges, new connector designs must accommodate a combination of enhanced electrical performance and durability while reducing the size and weight of interconnect systems.

　　Size and weight advantage

　　Improved machining, molding equipment and materials have enabled further reductions in connector size in construction. Although the size and weight of both meet MIL-PRF-83513, the 21-position nanominiature connector weighs only 0.4g compared to the equivalent miniature D-shaped connector at 2.60g. In addition, 37-position miniature D-shaped connectors require 4 times more space than 37-position board mount or printed board connectors.

　　Design and material selection are key to successful size reduction. At the heart of the design are the elastic pins. A beryllium copper material with special tensile annealing properties is required to create high contact strength, low contact resistance and maintain performance over thousands of mating cycles. Key specifications for beryllium copper thickness and length and shape ensure long life and long-term performance of microminiature connector pins.

　　The insulating housing is mostly injection molded liquid crystal polymer, with some older designs using polyphenylene sulfide. When the 0.025" pitch results in only 10~11 mils of insulator between pins, this type of insulation still has high retention and high electrical dielectric strength. High reliability PogoPin connector bodies can be used for plug-in and low vibration made of insulating materials, but most high-vibration and high-shock applications require metal enclosures.

　　Durable reliability

　　Durability depends on good installation design. Force and acceleration are key factors in testing the strength of PogoPin connectors in harsh applications. Thanks to the reasonable mounting brackets, the Nano-PogoPin connector can pass over 10000Gs of vibration and shock, such as in fire and launch conditions.

　　Nano circular connector

　　Micro circular connectors (0.050" pitch) are large compared to nano circular PogoPin connectors. When fitted with 0.025" pitch pins and sockets, in the same circular area, use 4 times more interconnect devices. Most of the new circuits require less than 1A of current because the digital processing allows smaller gauge wires to be used in the cable assembly to accommodate nanocircular connectors. The overall weight and diameter of the interconnection system is thus greatly reduced. An additional benefit of nano-cables is increased flexibility, as smaller diameter cables are easier to route in severely constrained locations.

　　There are many styles of nano-circular connectors depending on the application, the metal shell type nano-circular connectors are the most durable, with excellent strain relief and handle mechanism. They feature 360 ferrules for shielded cables and are environmentally sealed to protect against impregnation. Typically, they are used to connect remote detectors, sensors, and instrumentation to the front panel of the device. The nano-circular connectors are molded or installed into the system engineer's own instrument. This approach saves most of the space and allows the device or detector to have its own complete motor and mechanical connectors.

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