Microelectronic circuits, namely, solid state relays and power controllers, not including optical, electronic or electrical connectors sold separately; custom design hybrid microelectronic circuits, solid state relays and power controllers; custom design optoelectronic assemblies and components, not including optical connectors sold separately, namely, LED displays, alphanumeric displays with decoder on board designs or with driver on board designs, optocoupler arrays, hall effect sensors, and optically isolated MOSFETs; optocouplers; light-emitting diodes; Hall-Effect sensors; power operational amplifiers; fiber optic components and assemblies, not including optical connectors sold separately, namely, fiber optic transceivers; high temperature-tolerant electronic devices, namely, voltage regulators and pulse width modulators; radiation-tolerant electronic devices, namely, light-emitting diodes (LEDs), optocouplers, fiber optic transceivers, solid state relays and solid state power controllers