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).