The Ruilongyuan SMD4042-470E is a Surface Mount Device (SMD) with Discharge Tubes (GDT/TSS) manufactured in RoHS compliant versions. Featuring a small size of 4.0x4.2 mm, the SMD4042-470E Discharge Tubes are ideal for use in tight spaces and/or where weight and potential interruption of signal propagation are a concern. Designed to support the surge of current flow and provide a fast response time, the SMD4042-470E Discharge Tubes are suitable for a variety of different applications and are highly reliable components.