ethernet power contact and surge protection rj -45 tbu-dt085-200-wh tbu-dt085-200-wh tbu-dt085-200-wh tbu-dt085-200-wh +b -b +a -a +c -c +d -d gigabit ethernet transceiver cdsot236-0504c cdsot236-0504c quad transformer te schematic above illustrates the application protection and does not constitute the complete circuit design. customers should verify actual device performance in their specifc applications. PT61020L quad transformer tbu-dt085-200-wh cdsot236-0504c sol utions copyright? 2011 ? bourns, inc. ? 1/11 ? e/cpk1101 ? portnote is a trademark of bourns, inc. bourns and tbu are registered trademarks of bourns, inc. in the u.s. and other countries. solution products pn-designkit-23 design kit asia-pacifc: tel +886-2 256 241 17 fax +886-2 256 241 16 bourns? portnote? solutions provide protection recommendations for typical port threats. for more information, go to: www.bourns.com or email: protection@bourns.com americas: tel +1-951 781-5500 fax +1-951 781-5700 europe: tel +41-(0)41 768 55 55 fax +41-(0)41 768 55 10 compliance telcordia gr-1089-core lightning and power contact and iec 61000-4-2 level 4 esd. alternate recommendations other portnote? solutions: ? ethernet: esd protection ? ethernet: poe protection ? ethernet: esd and surge protection beneft te tvs diode array and tbu? device combination provides power contact and surge protection without impairing the ethernet signal. objective ethernet interfaces are digital signals operating on a 125 mhz clock. exposed ports may require protection against induced lightning and power contact events. solution 1 quad transformer: PT61020L 2 tvs diode arrays: cdsot236-0504c 4 tbu? devices: tbu-dt085-200-wh
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