Satellite Receiver RF Input - Surge Protection

Satellite Receiver RF Input
Surge Protection
Solution Products
2051-09-SM-RPLF
Objective
Compliance
This solution is designed to offer surge
protection to the RF input port from a
set-top box to a satellite dish. Lightning
strikes or near strikes to the building can
damage the delicate RF port and the power
supply which is fed to the dish.
IEC 61000-4-5:
SMCJ20A alone: 8/20 µs surge 150 A
SMLJ20A alone: 8/20 µs surge 400 A
SMCJ20A & 2051-09-SM & CC453232:
8/20 µs surge 2 kA
Solution
Benefit
This solution provides a low height, high current
solution to exposed set-top box applications.
Option 1
1 TVS Diode: SMCJ20A
SMCJ20A/SMLJ20A
Option 2
1 TVS Diode: SMLJ20A
Option 3
1 TVS Diode: SMCJ20A
1 GDT: 2051-09-SM-RPLF
1 Wirewound Chip Inductor: CC453232-1R0KL
CC453232-1R0KL
RF
Input
Design Kit
DC
Supply
CC453232-1R0KL
TVS
Diode
2051-09-SM-RPLF
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-46
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Bourns® PortNote® solutions provide protection
recommendations for typical port threats.
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