CWT-7 – TYCO ELECTRONICS

The CWT-7, manufactured by TE Connectivity (formerly TYCO), is a solder sleeve termination designed for wire-to-wire splices. This component provides a reliable and environmentally sealed electrical connection. The solder sleeve consists of a transparent, heat-shrinkable polyvinylidene fluoride (PVDF) or similar fluoropolymer insulation sleeve containing a prefluxed solder preform and thermoplastic sealing rings at each end. Upon application of heat, the sleeve shrinks, encapsulating the wires, while the solder melts and creates a permanent electrical bond. The specified dimensions, 0.267/0.287″, likely refer to the acceptable insulated wire outer diameter range in inches for proper insertion and sealing within the sleeve. This range is critical for ensuring adequate solder flow and a robust, strain-relieved connection. The thermoplastic sealing rings provide environmental protection against moisture and contaminants, enhancing the long-term reliability of the splice in demanding applications.