Switches are arguably the most critical component in a pulsed power system. Historically, spark gaps have been the primary switch choice in pulsed power systems. More recently, advances in wide bandgap materials and associated devices, particularly silicon carbide (SiC) and SiC devices, have enabled new capabilities in pulsed power systems. Importantly, even modern high-voltage SiC devices feature orders of magnitude lower voltage and current capacity per switch, when compared to traditional spark gaps. For this reason, solid-state pulsed power systems take on a unique form, usually comprising a very large number of submodules, to match the voltage and current capacity of spark gap–based systems. This chapter reviews some of the basics of solid-state pulsed power systems and pulsed power architectures. Methods and pulsed power architectures for combining solid-state devices are reviewed and examples of solid-state pulsed power systems are discussed.