Description
The 4N35 is an optocoupler that consists of a gallium arsenide infrared LED and a silicon NPN phototransistor. When the input signal is applied to the LED in the input terminal, the LED lights up. After receiving the light signal, the light receiver then converts it into electrical signal and outputs the signal directly or after amplifying it into a standard digital level. Thus the transition and transmission of electricity-light-electricity is completed. Since light is the media of the transmission, meaning the input terminal and the output one are isolated electrically, this process is also  known as electrical isolation.
 
Specifications
Voltage - Isolation
5300Vrms
Input Type
DC
Output Type
Transistor with Base
Current - Output / Channel
50mA
Voltage - Output
30V
Vce Saturation (Max)
70V
Current Transfer Ratio (Min)
40% @ 10mA
Mounting Type
Through Hole
Package / Case
6-DIP (0.300", 7.62mm)
Packaging
Tube
Lead Free Status
Lead Free
RoHS Status
RoHS Compliant