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TC04A-200 View Datasheet(PDF) -

Part Name
Description
Manufacturer
TC04A-200
 
TC04A-200 Datasheet PDF : 0 Pages
PROTECTION PRODUCTS
Typical Applications
Protecting Multiple SLIC Lines
The TC04A-200 may be used in conjunction with
steering diodes to protect up to four SLIC Tip & Ring
line pairs. The steering diodes shunt positive surges to
ground. The internal diodes of the TC04A-200 may be
used as one of the steering diode pairs as shown. In
this configuration, each line pair may be suged to 100A
(tp=10/100µs) independantly, or all four pairs may be
surged simultaneously up to 25A (tp=10/100µs). This
provides the designer with a flexible, cost effective
solution and increased reliability over low current
protection schemes. The surge immunity of the system
may be further enhanced with the addition of line feed
resistors (LFR). These devices are used for power
cross protection and are designed to withstand light-
ning impulses per Bellcore GR-1089. Device with
resistance values ranging from of 10W - 50W are
common. A 0.1µF capacitor is recommended between
the gate & ground to speed up the triggering the
device.
Note that the sum of the loop currents must not
exceed the holding current of the TC04A-200. In the
case of four twisted pairs, the individual loop currents
would have to be limited to 50mA.
TC04A-200
Component
TVS
Part Number
TC04A-200
Steering Diodes
ES1D
LFR
ALFR-2
Source
Semtech
GSI
IRC
Description
Battery Tracking TransClamp
Ultrafast Surface Mount
Rectifier
Telecommunications Line
Feed Resistor
ã 2000 Semtech Corp.
6
www.semtech.com
 

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