Description
The MCT27x family is an Industry Standard Single Channel Phototransistor Couplers. It includes the MCT270/ 271/ 272/ 273/ 274/ 275/ 276/ 277 couplers. Each optocoupler consists of gallium arsenide infrared LED and a silicon NPN phototransistor. These couplers are Underwriters Laboratories (UL) listed to comply with a 5300 VRMS isolation test voltage.

Features
• Interfaces with common logic families
• Input-output coupling capacitance < 0.5 pF
• Industry Standard Dual-in line 6-pin package
• 5300 VRMS isolation test voltage

Applications
    AC mains detection
    Reed relay driving
    Switch mode power supply feedback
    Telephone ring detection
    Logic ground isolation
    Logic coupling with high frequency noise rejection
    For additional design information see Application Note 45