DESCRIPTION
The SMxx Series is designed for applications
requiring transient overvoltage protection
capability. They are intended for use in voltage and
ESD sensitive equipment such as computers,
printers, business machines, communication
systems, medical equipment and other
applications. These devices are ideal for situations
where board space is at a premium.
This series has been specifically designed to
protect sensitive components which are connected
to power 、data and transmission lines from
overvoltage caused by ESD(electrostatic
discharge), CDE (Cable Discharge Events),and
EFT (electrical fast transients).

FEATURES
IEC61000-4-2 (ESD) ±15kV (air), ±8kV
(contact)
IEC61000-4-4 (EFT) 40A (5/50ηs)
350 Watts Peak Pulse Power per (tp=8/20μs)
Protects one bidirectional line or two
unidirectional lines
Low clamping voltage
Working voltages : 3.3V to 36V
Low leakage current

APPLICATIONS
Cell Phone Handsets and Accessories
Microprocessor based equipment
Personal Digital Assistants (PDA’s)
Notebooks, Desktops, and Servers
Portable Instrumentation
Networking and Telecom
Serial and Parallel Ports.
Peripherals