The 78RB03ST is a 3-position, SPST slide-style DIP switch from the Series 78 family. It features recessed slides designed for tool actuation and has a compact body length of 0.380 inches (9.7 mm). This through-hole component utilizes a spring and ball contact mechanism for reliable operation and includes both a sealed base and a top tape seal, making it suitable for machine soldering and heavy cleaning. It is ideal for setting configurations on printed circuit boards in various electronic applications.