Ethernet 10/100 Base-T Power over Ethernet (PoE) PD Unit Protection Solution Products CDSOT236-0504C Objective Alternate Recommendations 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 PD unit. Solution CDNBS04-B08200 1 TVS Diode Array: CDSOT236-0504C 2 Bridge Rectifiers: CDNBS04-B08200 1 TVS Diode: SMBJ58A 1 Transformer: SM51108PEL Other PortNote® Solutions: • Ethernet - ESD Protection • Ethernet - Power Contact and Surge Protection • Ethernet - 10/100 Base-T Power over Ethernet (PoE) PSE Unit Protection Contact Bourns for PoE+ or Gbit PoE port solutions. Benefit This solution provides ESD protection for 10/100 Base-T PoE PD devices without impairing the Ethernet signal. Compliance IEEE 802.3af and IEEE 802.11af IEC 61000-4-2 Level 4 (8 kV / 15 kV) Mode B Power SMBJ58A PD 4 5 SM51108EL 1 2 SM51108PEL SMBJ58A + RJ-45 - 3 6 Mode A Power 7 8 Fax +1-951 781-5700 Tel +36 88 520 390 Fax +36 88 520 211 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 EMEA: Ethernet PHY CDNBS04B08200 Design Kit PN-DESIGNKIT-34 CDNBS04B08200 Asia-Pacific: Tel +886-2 256 241 17 Fax +886-2 256 241 16 COPYRIGHT© 2014 • BOURNS, INC. • 9/14 • e/K1454 • “PortNote” is a registered service mark of Bourns, Inc. “Bourns” is a registered trademark 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]