The SRDA3.3-4 is constructed using Semtech’s proprietary
EPD process technology. The EPD process provides low
stand-off voltages with significant reductions in leakage
current and capacitance over silicon avalanche diode
processes. They feature a true operating voltage of 3.3
volts for superior protection. These devices are in a 8-pin
SOIC package. It measures 3.9 x 4.9mm. The high surge
capability (IPP=25A, tp=8/20μs) means it can be used in
high threat environments in applications such as CO/CPE
equipment, telecommunication lines, and video lines.