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    Bourns Releases High Power High Ripple Chokes

    KYOCERA AVX Releases Hermaphroditic WTW and WTB Connectors

    Radiation Tolerance of Tantalum and Ceramic Capacitors

    TDK Releases Compact Polypropylene Film Capacitors for Resonant Topologies

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Root Causes and Effects of DC Bias and AC in Ceramic Capacitors

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Wire-to-Wire and Wire-to-Board Connectors

14.9.2021
Reading Time: 1 min read
A A

Wire-to-Wire (WTW), and Wire-to-Board (WTB) connectors are similar in materials and design, but differ in whether the mating occurs between two free connectors or between a free and a board mounted connector. WTW connectors are used in Levels 3–5 and WTB connectors at Levels 3 and 4.

Fig. 2.128: Examples of wire to wire & wire to board connectors

These connectors are often defined in terms of contact style and/or housing configurations. Contact styles include post/receptacle and pin/socket configurations and housing configurations include rectangular, circular, D-Subminiature and ribbon connectors. Circular and D-Sub connectors use pin/socket contacts while post/receptacle contacts are used in rectangular and ribbon connectors. Pin/socket contacts come in many sizes, depending on current requirements, while post/receptacle contacts are primarily based on a 0.64 mm (0.025 in) square post. The predominant housing materials are nylon and polyester. Contact spring materials include brass and phosphor bronze and contact finishes include tin and gold over nickel.

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