Ethernet Power Contact and Surge Protection SOLUTIONS Solution Products PT61020L Quad Transformer Objective Compliance Ethernet interfaces are digital signals operating on a 125 MHz clock. Exposed ports may require protection against induced lightning and power contact events. Telcordia GR-1089-CORE Lightning and Power Contact and IEC 61000-4-2 Level 4 ESD. Solution 1 Quad Transformer: PT61020L 2 TVS Diode Arrays: CDSOT236-0504C 4 TBU® Devices: TBU-DT085-200-WH Alternate Recommendations Other PortNote™ Solutions: • Ethernet: ESD Protection • Ethernet: PoE Protection • Ethernet: ESD and Surge Protection Benefit The TVS diode array and TBU® device combination provides power contact and surge protection without impairing the Ethernet signal. TBU-DT085-200-WH +A -A CDSOT236-0504C TBU-DT085-200-WH Gigabit Ethernet Transceiver CDSOT236-0504C Quad Transformer TBU-DT085-200-WH RJ-45 +B -B TBU-DT085-200-WH +C -C Design Kit TBU-DT085-200-WH +D -D PN-DESIGNKIT-23 CDSOT236-0504C The schematic above illustrates the application protection and does not constitute the complete circuit design. Customers should verify actual device performance in their specific applications. Americas: Tel +1-951 781-5500 Fax +1-951 781-5700 Europe: Tel +41-(0)41 768 55 55 Asia-Pacific: Tel +886-2 256 241 17 Fax +41-(0)41 768 55 10 Fax +886-2 256 241 16 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. Bourns® PortNote™ solutions provide protection recommendations for typical port threats. For more information, go to: www.bourns.com or email: [email protected]