It consists of a phototransistor mounted on a plastic box with 4mm sockets; with transistor symbol printed (Base, collector, emitter indicated). Box: plastic, 13.8 x 10.4 x 4cm (approx.)
Diode transistor is mounted in a transparent box with terminals on its top. Module is ideal for use in electronic circuits where a component of some particular specification is required. A wide range of diode transistor is available.