TLP521 Series Optocoupler with GaAs IR-LED & Photo-Transistor
The Toshiba TLP521-1 consists of a photo-transistor optically coupled to a gallium arsenide infrared emitter diode.
phototransistor
EL4N35 Optocoupler IC
EL4N35 Phototransistor Optocoupler IC comes as a dual inline package and has 6 pins.
EL817C Optocoupler/Phototransistor IC
EL817C IC is a popular optocoupler IC. The IC like any other optocoupler consists of an infrared emitting diode which is optically coupled to a phototransistor detector.
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