Wire-to-board connectors feature locking mechanism

20th November 2015

Jordan Mulcare

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The XNI Series wire-to-board, 2.5mm (.098”) pitch, crimp style connectors, recently introduced by JST Corporation, Waukegan, Illinois, offer high reliability and provide stable contact performance under high vibration conditions. The headers and housings incorporate polarisation, keying (physical and colour) and secure locking features.

The unique contact locking feature is internal to the housing thereby eliminating contact back out and damage through handling external locking lances. The positive locking system is designed to fit inside the envelope of the header making it possible to stack the headers close together and still be able to release the positive lock. To facilitate proper mating, connectors offer keying and color coding. Additionally, the XNI features the JST proven inertia locking system which prevents a false mated condition. The housing and mating header must be fully mated before there is any connection between the header pins and receptacle contacts.

The XNI Series is available in 2 through 11 circuit sizes rated 3A (using 22 AWG) at 250V (AC/DC). The contacts are tin-plated over a phosphor bronze base material and accommodate a wire range of 30 to 22 AWG. The box design provides redundant points of contacts assuring a reliable connection. Temperature range is -25 to +85ºC including temperature rise in applying electrical current. PCB mounted, through hole headers are available in top entry configuration. Housings are molded in a RoHS compliant 94V-0 material.