Stewart 10100 base ethernet jack sockets stewart si 60008 f common mode choke rj45 ethernet jack socket 8 contacts 8 positions 1 port copper alloy contact material gold contact plating thermoplastic housing material 150v ac voltage rating 15a current rating 1500v ac dielectric withstanding 500mr insulation resistance 15mr contact resistance fcc compliant standard temperature enhanced shield chokes are optimized for problem frequencies stewart magjack st si series suitable f