ISDN Solution Products TISP4145M3BJR-S Objective Compliance Integrated Services Digital Network (ISDN) simultaneously transmits voice, video, and data over public switched telephone network circuits. This solution protects ISDN circuit interfaces against surge and power contact threats. ITU-T K.21 Solution This solution provides a high level of protection within a small amount of PCB area. 4 Thyristors: TISP4145M3BJR-S 4 Multifuse® PTCs: MF-RX018/250-0 U-Interface Alternate Recommendations For GR-1089-CORE designs, the TISP4145H3 and B1250T are recommended. Benefit TISP4145M3BJR-S S-Interface MF-RX018/250-0 MF-RX018/250-0 Voice MF-RX018/250-0 Remote Power DC/DC Converter TISP4145M3BJR-S TISP4145M3BJR-S MF-RX018/250-0 Data Design Kit MF-RX018/250-0 TISP4145M3BJR-S 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. PN-DESIGNKIT 10 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. • 08/11 • 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. Bourns® PortNote® solutions provide protection recommendations for typical port threats. For more information, go to: www.bourns.com or email: [email protected]