The 5-554169-3 is a CAT-5 8P8C/RJ45 unshielded Modular Plug with phosphor bronze contacts and glass filled polycarbonate housing. The modular plug features two internal strain reliefs to protect the modular plug-to-cable and terminal-to conductor interface from damage when subjected to pulling or bending forces-the primary strain relief grips the jacket and the secondary strain relief acts on the conductors. This modular plug is terminated using the insulation piercing technique. The modular plug is available in loose piece for terminating with manual or pneumatically-powered tools. Suitable for voice and data applications.