February 2010
MCT9001
Dual Phototransistor Optocouplers
Features
■ Two isolated channels per package
■ Two packages fit into a 16 lead DIP socket
■ Underwriters Laboratory (U.L.) recognized File
E90700
■ VDE approved for IEC60747-5-2
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 MCT9001 Optocoupler has two channels for density
applications. For four channel applications, two-packages
fit into a standard 16-pin DIP socket. Each channel is an
NPN silicon planar phototransistor optically coupled to a
gallium arsenide infrared emitting diode.
Schematic
Package Outlines
ANODE 1
CATHODE 2
ANODE 3
CATHODE 4
8 COLLECTOR
7 EMITTER
6 COLLECTOR
5 EMITTER
Equivalent Circuit
8
1
8
1
8
1
©2003 Fairchild Semiconductor Corporation
MCT9001 Rev. 1.0.7
www.fairchildsemi.com