BOURNS CMF-SDP50A-2

SLIC Protection
ITU-T Solution
Solution Products
TISP9110LDMR-S
Objective
Compliance
The SLIC (Subscriber Line
Interface Circuit) provides all
the BORSCHT functions such as
battery, ringing and supervision
between the codec and telephone
handset. This PortNote® solution
protects SLIC interfaces against
surge and power contact threats.
ITU-T Basic for K.20, K.21, K.45
Solution
Benefit
1 Thyristor: TISP9110LDMR-S
1 PTC: CMF-SDP50A-2
This solution provides a high level of protection in
dual voltage ringing SLICs.
Alternate Recommendations
Other PortNote® Solutions:
• Negative Battery Voltage SLIC Protection - ITU-T Solution
• Negative Battery Voltage SLIC Protection - GR-1089-CORE Intra-building Solution
• SLIC Protection - GR-1089-CORE Intra-building Solution
CMF-SDP50A-2
+VBAT
220 nF
CMF-SDP50A-2
TISP9110LDMR-S
SLIC
RJ11
Design Kit
220 nF
-VBAT
PN-DESIGNKIT-39
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.
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“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]