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LCDA24C-1
Low Capacitance TVS Array
PROTECTION PRODUCTS
Description
The LCDA24C-1 is a low capacitance transient voltage
suppressor (TVS) diode array. It is designed to protect
sensitive CMOS ICs from the damaging effects of ESD
and lightning. Each device will protect one line in
common (line-to-ground) mode or one line pair in
metallic (Line-to-line) mode. They are low capacitance
(< 15pF) making them suitable for use on high-speed
telecom and datacom interfaces without signal degra-
dation.
The configuration of the LCDA24C-1 has been opti-
mized for easy layout on high density boards. The
small SOT-143 package minimizes required board
space. These devices will handle up to 10 Amps for an
8/20μs lightning impulse. The low inductance con-
struction minimizes voltage overshoot during high
current surges.
The LCDA24C-1 may be used to protect ADSL inter-
faces, multi-protocol serial transceivers, portable
electronics, and wireless systems.
Circuit Diagram
PRELIMINARY
Features
Transient protection to high-speed data lines
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 0.5kV, 10A (8/20μs)
Configuration optimized for easy board layout
Protects one line pair
Low capacitance (<10pF) for high-speed interfaces
Low clamping voltage
Low leakage current
Operating voltage: 24V
Solid-state silicon-avalanche technology
Mechanical Characteristics
JEDEC SOT-143 package
Lead Finish: Matte Tin
Molding compound flammability rating: UL 94V-0
Marking: Marking code
Packaging: Tape and Reel per EIA 481
Applications
ADSL Interfaces
RS-232, RS-422, V.90 Interfaces
Multi-Protocol Serial Transceivers
High-Speed Data Lines
Portable Electronics
WAN/LAN Equipment
Schematic & PIN Configuration
SOT-143 (Top View)
Revision 04/07/2004
1
www.semtech.com
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