Features
• Two Isolated Channels Per Package
• Safety and Regulatory Approvals:
– UL1577, 4,170 VACRMS for 1 Minute
– DIN-EN/IEC60747-5-5, 890 V Peak Working Insulation Voltage

Applications
• AC line/digital logic – isolate high voltage transients
• Digital logic/digital logic – eliminate spurious grounds
• Digital logic/AC triac control – isolate high voltage
• transients
• Twisted pair line receiver – eliminate ground loop
• feedthrough
• Telephone/telegraph line receiver – isolate high
• voltage transients
• High frequency power supply feedback control –
• maintain floating grounds and transients
• Relay contact monitor – isolate floating grounds and
• transients
• Power supply monitor – isolate transients

Description
The general purpose optocoupler, MCT9001, has two isolated channels in a standard plastic 8-pin dual-in-line (DIP) package for density applications. Each channel consists of a gallium arsenide infrared emitting diode driving a NPN silicon planar phototransistor. For four channel applications, two packages fit into a standard 16-pin DIP socket.