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SD05_04 Datasheet, PDF (1/6 Pages) Semtech Corporation – Single Line TVS Diode for ESD Protection in Portable Electronics | |||
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SD05 and SD12
Single Line TVS Diode for ESD
Protection in Portable Electronics
PROTECTION PRODUCTS
Description
The SDxx TVS diodes are designed to replace multilayer
varistors (MLVs) in portable applications such as cell
phones, notebook computers, and PDAâs. They offer
superior electrical characteristics such as lower clamp-
ing voltage and no device degradation when compared
to MLVs. The SDxx series TVS diodes are designed to
protect sensitive semiconductor components from
damage or upset due to electrostatic discharge (ESD)
and other voltage induced transient events.
The SDxx is in a SOD-323 package and will protect one
unidirectional line. They are available with working
voltages of 5 volts (SD05) and 12 volts (SD12). These
devices will fit on the same PCB pad area as an 0805
MLV device. They give the designer the flexibility to
protect one line in applications where arrays are not
practical. Additionally, it may be âsprinkledâ around the
board in applications where board space is at a pre-
mium.
Features
 350 Watts peak pulse power (tp = 8/20µs)
 Transient protection for data lines to
IEC 61000-4-2 (ESD) ±25kV (air), ±10kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 24A (8/20µs)
 Small package for use in portable electronics
 Suitable replacement for MLVâs in ESD protection
applications
 Protects one I/O or power line
 Low clamping voltage
 Working voltages: 5V and 12V
 Low leakage current
 Solid-state silicon-avalanche technology
Mechanical Characteristics
 EIAJ SOD-323 package
 Molding compound flammability rating: UL 94V-0
 Marking : Marking code, cathode band
 Packaging : Tape and Reel per EIA 481
They may be used to meet the ESD immunity require-
ments of IEC 61000-4-2, Level 4 (±15kV air, ±8kV
contact discharge).
Applications
 Cell Phone Handsets and Accessories
 Microprocessor based equipment
 Personal Digital Assistants (PDAâs)
 Notebooks, Desktops, and Servers
 Portable Instrumentation
 Pagers Peripherals
Schematic & PIN Configuration
Revision 07/12/04
SOD-323 (Top View)
1
www.semtech.com
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