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Home  Product Technical Articles   4N35 Optocoupler: Pinout, Datasheet, Applications [Video]

4N35 Optocoupler: Pinout, Datasheet, Applications [Video]

Author: Iggy
Date: 21 Jan 2022
 25034
4n35 pinout

The 4N35 is an optocoupler integrated circuit in which an infrared emitting diode drives a phototransistor.

This blog describes the pins, datasheet, equivalence, etc. of the 4N35 optocoupler.

Introduction to 4N35 & How to test it

Catalog

4N35 CAD Model

4N35 Pinout

4N35 Parameters

4N35 Features

4N35 Applications

4N35 Product Compliance

4N35 Documents

4N35 Agency Approvals

4N35 Package

4N35 Advantage

4N35 Equivalents

4N35 Environmental and Export Classifications

How To Use 4N35

How to Safely Long Run 4N35 in a Circuit

4N35 Manufacturer

Component Datasheet

FAQ


4N35 CAD Model

4n35 symbols

 

4N35 symbols

4n35 Footprint

 

4N35 Footprint

4n35 3D

 

4N35 3D


4N35 Pinout

4N35 Optocoupler Pinout

Pin Number

Pin Name

Pin Description

1

Anode

IR LED Anode/ Positive Pin

2

Cathode

IR LED Cathode/ Negative Pin

3

NC

Not Connected Pin

4

Base

Base Pin of the Photo Transistor

5

Collector

Collector Pin of the Photo Transistor

6

Emitter

Emitter Pin of the Photo Transistor


4N35 Parameters

Additional Feature

UL APPROVED

Brand

Vishay Semiconductors

Coll-Emtr Bkdn Voltage-Min

70 V

Configuration

1 Channel

Configuration

SINGLE

Current Transfer Ratio

50 %

Current Transfer Ratio-Min

40%

Current Transfer Ratio-Nom

50%

Dark Current-Max

50 nA

ECCN Code

EAR99

Forward Current-Max

0.06 A

Forward Voltage-Max

1.5 V

Height

3.81 mm

HTS Code

8541.40.80.00

If - Forward Current

60 mA

Isolation Voltage

5000 Vrms

Isolation Voltage-Max

5300 V

Length

8.7 mm

Manufacturer

Vishay Semiconductors

Manufacturer Part Number

4N35-X000

Maximum Collector Current

100 mA

Maximum Collector Emitter Saturation Voltage

0.3 V

Maximum Collector Emitter Voltage

30 V

Maximum Operating Temperature

+ 100 C

Mounting Feature

THROUGH HOLE MOUNT

Mounting Style

Through Hole

Number of Channels

1 Channel

Number of Elements

1

On-State Current-Max

0.05 A

Operating Temperature-Max

100 °C

Operating Temperature-Min

-55 °C

Optoelectronic Device Type

TRANSISTOR OUTPUT OPTOCOUPLER

Output Type

NPN Phototransistor

Package / Case

DIP-6

Packaging

Tube

Part Life Cycle Code

Active

Power Dissipation-Max

0.15 W

Product Category

Transistor Output Optocouplers

Reach Compliance Code

Unknown

Risk Rank

2.21

Subcategory

Optocouplers

Subcategory

Optocoupler - Transistor Outputs

Surface Mount

NO

Unit Weight

0.012346 oz

Vf - Forward Voltage

1.5 V

Vr - Reverse Voltage

6 V

Width

6.5 mm


4N35 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


4N35 Applications

• Isolation in circuits

• Microcontrollers output to control devices

• Power supplies and chargers

• Digital application circuits

• Telecommunication Applications / Circuits

• AC Isolation Circuits

• AC Detector Circuits


4N35 Product Compliance

USHTS

8541408000

CAHTS

8541400091

CNHTS

8541409000

KRHTS

8541409029

MXHTS

85414001

TARIC

8541409090

ECCN

EAR99


4N35 Documents

Certificates

REACH Certificate (PDF)

PCN

Product Change Notification (PDF)

Featured Product

PCB Design Tools

HTML Datasheet

4N35/36/37

EDA/CAD Models

4N35 by SnapEDA


4N35 Agency Approvals

  • Underwriters laboratory file no. E52744

  • BSI: EN 60065:2002, EN 60950:2000

  • FIMKO; EN 60065, EN 60335, EN 60950 certificate no. 25156


4N35 Package

  • 4N35 Package Dimensions in millimeters

4N35 package dimensions in millimeters

4N35 package dimensions in millimeters


4N35 Advantage

4N35 is general purpose and widely used optocoupler or we can say it optoisolator & photocoupler & it is available in 6 pin dip and SMD packages. The device contains two parts one is an IR LED and the other part is the phototransistor. The working of the device is simple when power is applied to the IR LED which activates the LED, the IR light is detected by the phototransistor and as a result the transistor become saturated or switched ON. There are two base of the internal phototransistor from which it can be controlled one is the photo detection or IR light detection and other is connected with the pin6 of the device, therefore it can be controlled by two procedures at the same time.

The max collector-emitter voltage of the phototransistor is 30V and max collector-emitter current is 150mA. However the collector-emitter saturation voltage is from 0.14 to 0.3. Normally the saturation voltage of transistor is 0.6 or 0.7 volts but 0.3 volts is an ideal saturation voltage for applications where low voltage saturation is required.

As regarding the IR LED characteristics the max forward current is 60 milliampere and max power dissipation is 120 milliwatt. Pin3 is labeled with “NC” which means the pin3 have not connection with the internal circuitry.


4N35 Equivalents

Part Number

Description

Manufacturer    

4N36-X000

Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP

Vishay Semiconductors

4N37-X000

Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP

Vishay Semiconductors

4N35-X000

Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin PDIP

Vishay Semiconductors


4N35 Environmental and Export Classifications

Attribute

Description

RoHS Status

ROHS3 Compliant

Moisture Sensitivity Level (MSL)

1 (Unlimited)


Where To Use 4N35

4N35 optocoupler can be used for variety of general purpose requirements in electronic circuits. For example you can use it in electronic circuits to save the circuits, ICs and other components from voltage surge or voltage spikes which damages the components. Other than this it can also be used for isolation in electronic circuits. You can also use to detect voltage in AC and DC circuits, at the output of microcontroller Chips, controlling high power transistors, high voltage devices etc.


How To Use 4N35

Using 4N35 optocoupler is very easy, as discussed above the device contains two parts or components an IRLED and a Phototransistor, the LED Anode pin can be connected with the output of the device you are operating or working on (for example any IC or Microcontroller) and the cathode pin of the LED should be connected with the ground of that device, this LED should be handled same as you handle any other LED for example you have to use a current limiting resistor too. When the output of the device goes high the LED will become switched ON and the IR light with be detected by the photo transistor making it saturated or switched ON hence the collector and emitter pins will become shorted and as a result any wire connected with the pin 4 and 5 will be connected with each other. The internal phototransistor can also be controlled like a normal BJT transistor, the pin6 is connected with the base of the transistor and you can also use pin6 to control the transistor.


How to Safely Long Run 4N35 in a Circuit

4N35 Optocoupler IC

4N35 Optocoupler IC

For long term stability and performance of this device it is recommended that the user should not operate the device above its max ratings. Do not apply or operate load of 150mA through this device. Using a current limiting resistor with IR LED is always recommended. Do not operate the device in temperature above -55 centigrade and below +100 centigrade and always store above -55 centigrade and below +150 centigrade.


4N35 Manufacturer

Vishay Semiconductors includes the former Vishay Telefunken product lines, the former General Semiconductor product lines, the infrared component product lines acquired from Infineon Technologies, and selected product lines acquired from International Rectifier (excluding planar high-voltage MOSFETs).

The Vishay Semiconductors product portfolio includes rectifiers, fast-recovery diodes, high-power diodes and thyristors, small-signal diodes, Zener and suppressor diodes, RF transistors, optoelectronics, power modules (a combination of power diodes, thyristors, MOSFETs, and IGBTs), and automotive modules and assemblies.

Vishay is the world's number one manufacturer of rectifiers, glass diodes, and infrared components.


Component Datasheet

4N35x Datasheet


FAQ

  • What is Optocoupler Used for?

An optoisolator (also called an optocoupler, photocoupler, or optical isolator) is an electronic component that transfers electrical signals between two isolated circuits by using light. Optoisolators prevent high voltages from affecting the system receiving the signal.

  • What is the use of Optocoupler 4N35?

What an optocoupler does is to break the connection between signal source and signal receiver, so as to stop electrical interference. In other words, it is used to prevent interference from external electrical signals. 4N35 can be used in AV conversion audio circuits.

  • What is Optocoupler in PLC?

An Optocoupler, is an electronic components that interconnects two separate electrical circuits by means of a light sensitive optical interface.

  • How to Use Optocoupler for Isolation?

An optocoupler achieves this isolation by taking signals that it receives at its input and transferring the signals using light to its output. The optocoupler translates the signal on its input into an infrared light beam using an infrared light emitting diode (LED).

  • What is 4N35 Optocoupler?

The 4N35 is an optocoupler for general purpose application. It consists of gallium arsenide infrared LED and a silicon NPN phototransistor. What an optocoupler does is to break the connection between signal source and signal receiver, so as to stop electrical interference.

  • How Do you Connect 4N35 Control Board?

Connect pin 2 of the 4N35 to pin 7 of the control board, and pin 1 to a 1K current limiting resistor and then to 5V. Connect pin 4 to GND of the Uno, and pin 5 to the cathode of the LED. Then hook the anode of the LED to 5V after connecting with a 220 Ohm resistor.

Ordering & Quality

Photo Mfr. Part # Company Description Package PDF Qty Pricing
(USD)
4N35-000E 4N35-000E Company:Broadcom Limited Remark:OPTOISO 3.55KV TRANS W/BASE 6DIP Package:6-DIP (0.300", 7.62mm)
DataSheet
In Stock:On Order
Buy
Price:
27820+: $0.12271
Buy
4N35-060E 4N35-060E Company:Broadcom Limited Remark:Optoisolator Transistor with Base Output 3550Vrms 1 Channel 6-DIP Package:6-DIP (0.300", 7.62mm)
DataSheet
In Stock:On Order
Buy
Price:
19240+: $0.20548
Buy
4N35-300E 4N35-300E Company:Broadcom Limited Remark:Optoisolator Transistor with Base Output 3550Vrms 1 Channel 6-SMD Package:6-SMD, Gull Wing
DataSheet
In Stock:16753
Buy
Price:
1+: $1.09000
10+: $0.70600
100+: $0.46250
1000+: $0.36510
2000+: $0.34076
5000+: $0.32859
10000+: $0.32372
25000+: $0.31642
Buy
4N35-360E 4N35-360E Company:Broadcom Limited Remark:Optoisolator Transistor with Base Output 3550Vrms 1 Channel 6-SMD Package:6-SMD, Gull Wing
DataSheet
In Stock:On Order
Buy
Price:
17875+: $0.22055
Buy
4N35-500E 4N35-500E Company:Broadcom Limited Remark:Optoisolator Transistor with Base Output 3550Vrms 1 Channel 6-SMD Package:6-SMD, Gull Wing
DataSheet
In Stock:On Order
Buy
Price:
18000+: $0.22055
Buy
4N35-560E 4N35-560E Company:Broadcom Limited Remark:Optoisolator Transistor with Base Output 3550Vrms 1 Channel 6-SMD Package:6-SMD, Gull Wing
DataSheet
In Stock:On Order
Buy
Price:
18000+: $0.22055
Buy
4N35M 4N35M Company:ON Semiconductor Remark:OPTOISO 4.17KV TRANS W/BASE 6DIP Package:6-DIP (0.300", 7.62mm)
DataSheet
In Stock:6195
Buy
Price:
1+: $0.55000
10+: $0.42700
100+: $0.27350
500+: $0.23522
1000+: $0.18160
2500+: $0.16410
5000+: $0.15316
10000+: $0.14769
Buy
4N35-W00E 4N35-W00E Company:Broadcom Limited Remark:Optoisolator Transistor with Base Output 3550Vrms 1 Channel 6-DIP Package:6-DIP (0.400", 10.16mm)
DataSheet
In Stock:On Order
Buy
Price:
19240+: $0.20548
Buy
4N35-W60E 4N35-W60E Company:Broadcom Limited Remark:Optoisolator Transistor with Base Output 3550Vrms 1 Channel 6-DIP Package:6-DIP (0.400", 10.16mm)
DataSheet
In Stock:On Order
Buy
Price:
17875+: $0.22055
Buy

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