Telephone Plug RJ12 PLUG,Cable Connector(4P4C)1.application:telephone cable ... mm thrickness copper alloy with tin plated gold RJ45 plug UTP for cat6 cables ,used for the connection ... 60HZ 1mininsulation resistance:39 millions max mechanical cable to plug tensile strength:7.7kg mindurability: 750 mating cycles ... ,30u,50u,60u. Working temperature :4060 Telephone Plug RJ12 PLUG,Cable Connector(4P4C)