The LC03-3.3BTG series provides overvoltage protection for applications such as 10/100/1000 BaseT Ethernet, and T3/E3 interfaces.
Lightning Surge Protection - SP03-3.3 SeriesThe SP03-3.3 series broadband protection device from Littelfuse provides overvoltage protection for applications such as 10/100/1000 BaseT Ethernet, T3/E3 DS3 interfaces, ADSL2+, and VDSL2+.