
PROTECTION PRODUCTS
Description
The LCDA15-1 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. They are low capaci-
tance (< 15pF) making them suitable for use on high-
speed telecom and datacom interfaces without signal
degradation.
The configuration of the LCDA15-1 has been optimized
for easy layout on high density boards. The small SOT-
143 package minimizes required board space. These
devices will handle up to 15 Amps for an 8/20μs
lightning impulse. The low inductance construction
minimizes voltage overshoot during high current
surges.
The LCDA15-1 may be used to protect ADSL inter-
faces, portable electronics, and wireless systems.
PRELIMINARY
1
www.semtech.com
LCDA15-1
Low Capacitance TVS Diode Array
Features
Circuit Diagram
Schematic & PIN Configuration
Revision 2/18/2002
Applications
ADSL Interfaces
Serial/Parallel Interfaces
High-Speed Data Lines
Portable Electronics
WAN/LAN Equipment
Wireless Systems
Mechanical Characteristics
JEDEC SOT-143 package
Molding compound flammability rating: UL 94V-0
Marking : Marking code
Packaging : Tape and Reel per EIA 481
ESD protection to
IEC 61000-4-2, Level 4
Lightning protection per
IEC 61000-4-5
(15A, tp=8/20μs)
Configuration optimized for easy board layout
Protects one line
Low capacitance (<15pF) for high-speed interfaces
Low clamping voltage
Low leakage current
Operating voltage: 15V
Solid-state silicon-avalanche technology
SOT-143 (Top View)