DS1E-S-DC12V Signal Relay, 12 VDC, SPDT, 2 A, DS Series, Through Hole. The DS1E-S-DC12V is a high reliability Single Side Stable with Ag + Au clad contact and SPDT contact configuration. Epoxy resin seals the parts and cut off the external atmosphere, thus enabling use in difficult environments. It can be used with automatic solder and automatic wash systems. Highly stable gold cladding on the contacts ensures that contact resistance changes little over time.