RJ11 and RJ45 are crimp connectors widely used in telecoms and data applications. RJ11 are available in 4-pole and 6-pole body sizes, RJ45 are 8-pole.
RJ11 are designed for use with flat cable with in-line cores. RJ45 are available both for flat or for round cable (eg. Category 5). RJ45 is also available fully shielded for more sensitive applications. RJ45-Cat6 and RJ45-Cat6/6A are three part connectors, including cable management bar; RJ45-Cat6//6A/XL is a two part connector. Note that strain relief boots should be used in order to obtain Cat6 and Cat6A performance.
These connectors are fitted using special crimp tools - see Crimp tools.
For strain relief boots see RJ45-STRAIN-RELIEF-BOOTS
Note (1): Outer diameter including insulation.
||Polycarbonate UL 94 V-0
||RJ11 types, 0.38 micron gold over 2.54 micron nickel plated phosphor bronze; RJ45 types, 1.27 micron gold over 2.54 micron nickel plated phosphor bronze