Low Voltage EPD TVS Diode
For ESD and Latch-Up Protection
PROTECTION PRODUCTS
Description
The SLV series of transient voltage suppressors are
designed to protect low voltage, state-of-the-art CMOS
semiconductors from transients caused by electro-
static discharge (ESD), cable discharge events (CDE),
lightning and other induced voltage surges.
The devices are constructed using Semtech’s propri-
etary EPD process technology. The EPD process pro-
vides low standoff voltages with significant reductions
in leakage currents and capacitance over silicon-
avalanche diode processes. The SLVU2.8 features an
integrated low capacitance compensation diode that
allows the device to be configured to protect one
unidirectional line or, when paired with a second
SLVU2.8, two high-speed line pairs. The low capaci-
tance design of the SLVU2.8 means signal integrity is
preserved in high-speed applications such as 10/100
Ethernet.
The SLVU2.8 is in an SOT23 package and has a low
2.8 volt working voltage. It is specifically designed to
protect low voltage components such as Ethernet
transceivers, laser diodes, ASICs, and high-speed RAM.
The low clamping voltage of the SLVU2.8 minimizes the
stress on the protected IC.
The SLV series TVS diodes will exceed the surge re-
quirements of IEC 61000-4-2, Level 4.
SLVU2.8
Features
400 Watts peak pulse power (t
p
= 8/20μs)
Transient protection for high speed data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 24A (8/20μs)
One device protects one unidirectional line
Two devices protect two high-speed line pairs
Low capacitance
Low leakage current
Low operating and clamping voltages
Solid-state EPD TVS process technology
Mechanical Characteristics
JEDEC SOT23 package
Molding compound flammability rating: UL 94V-0
Marking : U2.8
Packaging : Tape and Reel per EIA 481
Applications
10/100 Ethernet
WAN/LAN Equipment
Switching Systems
Desktops, Servers, Notebooks & Handhelds
Laser Diode Protection
Base Stations
Circuit Diagram
Schematic & PIN Configuration
3
1
3
2
1
2
SOT23 (Top View)
Revision 06/25/2008
1
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SEMTECH [ SEMTECH CORPORATION ]
