Special Purpose Transistor Optocoupler 3OT123B9 OSH for Reliable Signal Isolation

Optocouples transistor in a metollosteel case, consisting of a silicon epitaxial-planar n-p-n transistor receiver and GaAlAs mesa-epitaxial infrared diode emitter, are intended for use in special purpose radio-electronic equipment for contactless switching of DC circuits with galvanic isolation between input and output.