pinouts

4n35 Pinout Schematic Circuit Diagram

4n35 Pinout Schematic Circuit Diagram

DataSheet:

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4N35 is an optocoupler integrated circuit in which an infrared emitter diode drives a phototransistor. They are also known as optoisolators since they separate two circuits optically. These are used to couple two circuits without any ohmic contact. They allow one of the circuits to switch another one while they are completely separate. The first circuit is connected to IR diode while the other circuit with the phototransistor. The isolation ensures that no damage occurs in either of the circuits while the other one has a fault.
An optocoupler is analogous to a relay which isolates two circuits magnetically. They differ with relays in the sense that they are smaller in size and allow fast operation. 4N35s are commonly used in interfacing an electronic circuit with the parallel port of a computer.

Pin Diagram:

 4n35 Pin Schematic Circuit Diagram

Pin Description:

Pin No
Function
Name
1
IR diode’s anode
Anode
2
IR diode’s cathode
Cathode
3
Not connected
NC
4
Phototransistor’s emitter
Emitter
5
Phototransistor’s collector
Collector
6
Phototransistor’s base
Base

 

This datasheet presents five families of Vishay industry-standard single-channel phototransistor couplers. These
families include the 4N35, 4N36, 4N37, 4N38 couplers. Each optocoupler consists of a gallium arsenide infrared LED and a silicon NPN phototransistor. These couplers are Underwriters Laboratories (UL) listed to comply with a 5000 VRMS isolation test voltage. This isolation performance is accomplished through Vishay double molding isolation manufacturing process. Compliance with DIN EN 60747-5-5 partial discharge isolation specification
is available for these families by ordering option 1. These isolation processes and the Vishay ISO9001 quality program result in the highest isolation performance available for a commercial plastic phototransistor optocoupler. The devices are available in a lead-formed configuration suitable for surface mounting and are available either on tape and reel or in standard tube shipping containers.

FEATURES
  • Isolation test voltage 5000 VRMS
  • Interfaces with common logic families
  • Input-output coupling capacitance < 0.5 pF
  • Industry-standard dual-in-line 6 pin package
  • Compliant to RoHS directive 2002/95/EC and in accordance to WEEE 2002/96/EC
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