P1200S Teccor Electronics, P1200S Datasheet - Page 108

• Manufacturer Part Number: P1200S
• Description: solid state crowbar devices
• Manufacturer: Teccor Electronics

Analog Line Cards
Figure 3.23 SLIC Protection with Fixed Voltage SIDACtor Devices
Figure 3.24 SLIC Protection with Programmable Voltage SIDACtor Devices
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Ring
Tip
Ring
Tip
20 Ω
20 Ω
F1250T
F1250T
Figure 3.23 illustrates the use of the P2600SA and P0721CA2 for overvoltage protection
and the F0500T for overcurrent protection in addition to 20 W of series resistance on both
Tip and Ring. The series resistance is required to limit the transient surge currents to within
the surge current rating of the “A” series SIDACtor devices and the F0500T TeleLink fuse.
The illustration of SLIC protection in Figure 3.24 shows Teccor’s Battrax device protecting
Legerity’s (formerly AMD’s) Am79R79 from overvoltages and uses a F1250T to protect
against sustained power cross conditions. The Battrax product was designed specifically to
protect SLICs that cannot withstand potential differences greater than V
F0500T
F0500T
P2600SA
P2600SA
B1XX0CC
R
E
L
A
Y
3 - 20
0.1µF
B1XX0CC
-V REF
P0721CA2
-V REF
SIDACtor
0.1 µF
®
Data Book and Design Guide
MUR120
MUR120
1N4935/
1N4935/
© 2002 Teccor Electronics
REF
Am79R79
± 10 V.
Legerity
C
S
L
I