Ethernet
Power over Ethernet (PoE) Surge Protection
Gigabit
Ethernet
Transceiver
CDSOD323-T05C
SMLJ58A
TCS-DL004
-250-WH
MOV-10D820K
CDSOD323-T05C
CDSOD323-T05C
CDSOD323-T05C
TCS-DL004
-250-WH
TCS-DL004
-250-WH
TCS-DL004
-250-WH
Quad
Transformer
PT61020EL
MCT1
MCT2
MCT3
MCT4
RJ-45
MCT1 MCT2
MCT3 MCT4
Isolated
DC/DC
Converter
DC
Supply
MOV-10D820K
Varies with
PSE/PD chipset
e schematic here illustrates the application protection and does
not constitute the complete circuit design.
Customers should verify actual device performance in their
specic applications.
PT61020EL
TCS-DL004-250-WH
CDSOD323-T05C
MOV10D820K
SMLJ58A
Solution Products
Asia-Pacific: 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
ITU-T K.20, K.21, K.45 Basic
Telcordia GR-1089-CORE Issue 6 Port Type 4
Alternate Recommendations
Other PortNote® Solutions:
• Ethernet - ESD Protection
• Ethernet - Power Over Ethernet (PoE)
PD Solution
• Ethernet - Power Over Ethernet (PoE)
PSE Solution
• Ethernet - Power Contact and
Surge Protection
Variations of this circuit are available
depending on specic design constraints;
contact your local Bourns technical
representative for more information.
Benefit
e Bourns® TCS™ High-Speed Protector
and TVS Diode combination provide robust
surge protection without impairing the
Ethernet signal.
Objective
Power over Ethernet (PoE) interfaces combine
VPP dierential signals and nominal 48 VDC power.
is solution provides protection for both
the data and power signals and is compatible with
10/100/1000 Base-T.
Solution
1 Quad Transformer: PT61020EL
4 TCS™ High-Speed Protectors: TCS-DL004-250-WH
4 TVS Diodes: CDSOD323-T05C
2 Metal Oxide Varistors (MOVs): MOV-10D820K
1 TVS Diode: SMLJ58A
COPYRIGHT© 2013 • BOURNS, INC. • 5/12 • WAG • 3M/CPK1302 • “TCS” is a trademark of Bourns, Inc.
“PortNote” is a registered service mark of Bourns, Inc. “Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries.
PN-DESIGNKIT-44
Design Kit
