ISDN
S-Interface
Remote
Power
DC/DC
Converter
U-Interface
TISP4145M3BJR-S
TISP4145M3BJR-S
Data
Voice
MF-RX018/250-0
MF-RX018/250-0
TISP4145M3BJR-S
TISP4145M3BJR-S
MF-RX018/250-0
MF-RX018/250-0
e schematic above illustrates the application protection and does not constitute the complete circuit design.
Customers should verify actual device performance in their specic applications.
TISP4145M3BJR-S
MF-RX018/250
COPYRIGHT© 2012 • BOURNS, INC. • 6/12 • e/CPK1067 • “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.
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.21
Alternate Recommendations
For GR-1089-CORE designs, the TISP4145H3 and
B1250T are recommended.
Benefit
is solution provides a high level of protection
within a small amount of PCB area.
Objective
Integrated Services Digital Network
(ISDN) simultaneously transmits voice,
video, and data over public switched
telephone network circuits. is solution
protects ISDN circuit interfaces against
surge and power contact threats.
Solution
4 yristors: TISP4145M3BJR-S
4 Multifuse® PTCs: MF-RX018/250
PN-DESIGNKIT 10
Design Kit
