Ethernet 10/100 Base-T Power over Ethernet (PoE) PSE Unit Protection Solution Products CDSOT236-0504C Objective Alternate Recommendations Other PortNote® Solutions: • Ethernet - ESD Protection • Ethernet - Power Contact and Surge Protection • Ethernet - 10/100 Base-T Power over Ethernet (PoE) PD Unit Protection Contact Bourns for PoE+ or Gbit PoE port solutions. 10/100 Base-T Power over Ethernet (PoE) interfaces combine data and 48 V DC to provide remote power to a Powered Device (PD). This solution provides ESD and overcurrent protection for the Powered-Sourcing Equipment (PSE) unit. Solution MF-SMDF050-2 1 TVS Diode Array: CDSOT236-0504C 1 Multifuse® PPTC Resettable Fuse: MF-SMDF050-2 1 Transformer: SM51108EL Benefit This solution provides ESD and overcurrent protection for 10/100 Base-T PoE PSE devices without impairing the Ethernet signal. Compliance IEEE 802.3af and IEEE 802.11af IEC 61000-4-2 Level 4 (8 kV / 15 kV) SM51108EL PSE 4 5 MF-SMDF050-2 1 2 PoE Power Supply RJ-45 Ethernet PHY SM51108EL Design Kit 3 6 CDSOT236-0504C Power Mode A Shown Selected PN-DESIGNKIT-35 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 7 8 Fax +886-2 256 241 16 COPYRIGHT© 2012 • BOURNS, INC. • 6/12 • e/CPK1133 • “PortNote” is a registered service mark of Bourns, Inc. “Bourns” and “Multifuse” 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]