We are Apogeeweb Semiconductor Electronic

WELCOME TO OUR BLOG

Home  Product Technical Articles   PC817 Optocoupler: Pinout, Schematic, Equivalent [FAQ]

PC817 Optocoupler: Pinout, Schematic, Equivalent [FAQ]

Author: Iggy Date: 23 Feb 2021  226

PC817 is an optocoupler. This blog covers PC817 Optocoupler pinout, datasheet, equivalent, features, and other information on how to use and where to use this device.

Catalog

PC817 Pinout

PC817 Circuit

PC817 Applications

PC817 Features

PC817 Advantage

PC817 Package

PC817 Manufacturer

PC817 Alternatives

PC817 Equivalents

Where to use PC817

How to use PC817

How to Safely Long Run PC817 in Circuit

PC817 Popularity by Region

PC817 Market Price Analysis

Component Datasheet

FAQ

PC817 Pinout

PC817 Optocoupler Pinout

Pin Number

Pin Name

Description

1

Anode

Anode pin of the IR LED. Connected to logic input

2

Cathode

Cathode pin of the IR LED. Connected to ground

3

Emitter

Emitter pin of transistor. Connected to Ground

4

Collector

Collector pin of the Transistor. Provides logical output


PC817 Circuit

  • Circuit Diagram

The circuit design is given below.

PC817 Circuit Diagram

The circuit is totally simple but the resistance will give it protection at the input in HIGH voltages. The Optocoupler is just a small-sized circuit of infrared receiver and sender but in case of making it with externally by using IR sender and receiver cause many problems.

    • First manually made circuit comes in a larger size, then in case of IR receiving devices the circuit IR sender of auto coupler or receiver could be affected by other IR signals.
    • The closed communication protects it from many things especially from temperature too.
    • The manually made Optocoupler has low voltage operating voltage level as compare to this PC817.
  • Test Circuit for Response Time

PC817 Test Circuit for Response Time

  • Test Circuit for Frequency Response

PC817 Test Circuit for Frequency Response


PC817 Applications

  • In protection like electric isolation, PC817 is reliable to use due to its functionality.
  • PC817 is much efficient in switching for microcontrollers. Simple transistors can be used but due to its neglecting the noise factor the optocoupler can be used as switching too.
  • In signal Isolation, the optocoupler is faster and widely used from the previous century.
  • Optocoupler is also used for a basic noise coupling circuit to keep the circuit in use without any disconnectivity.
  • Nowadays IC has the best uses in IoT devices for switching and zero cross. In-Home appliance to control AC load optocoupler gives the pulse of change in frequency which gives the ability to control the AC load at a specific range.
  • For Signal transmission the optocoupler is widely used nowadays.

PC817 Features

  • It comes with 4-pins in two packages, DIP and SMT.
  • The device has an internal protection form of electrical isolation. The protection is for both input and output. It can protect up to HIGH 5KV from electric isolation.
  • The optocoupler can be used with an external resistor with high voltage devices to operate with low voltage devices.
  • The optocoupler can operate with any kind of device with internal interfaces like with TTL device, Microcontrollers and even with HIGH DC voltage with some internal resistors.
  • Optocoupler PC817 comes with internal protection from reverse current. Due to the one-way current flow nature of IR, the PC817 protects the IR from any reverse current.

PC817 Advantage

PC817 Optocoupler IC

PC817 Optocoupler

PC817 is also known as an optocoupler / optoisolator. It consists of Infrared Emitting Diode (IRED). This IRED is coupled to a photo transistor optically and not electrically. It is closed in a four (4) pin package. This package is usually available in two different forms. The first one is wide lead (Pb) spacing option and the second one is SMT gullwing lead form option.

PC817 has an internal LED and a photo transistor. The photo transistor's base becomes activate when LED throws light on it. The output obtained can be divided into two formats either common emitter or common collector. But the configuration is mostly common emitter. If the LED does not glow, transistor remains off and hence there will b no output generated by the optocoupler i.e. PC817.

PC817 has different feature, e.g. double transfer mold package, current transfer ratio, different CTR ranks available, RoHS comliant, lead (Pb) free etc. Its real-life application includes noise suppression in switching circuits, programmable controllers, signal transmission between circuits having different voltages, signal transmission between different impedance etc.


PC817 Package

  • Through-Hole [ex.PC817X]

PC817 Package: Through-Hole [ex.PC817X]

  • SMT Gullwing Lead-Form [ex.PC817XI]

PC817 Package: SMT Gullwing Lead-Form [ex.PC817XI]

  • Wide Through-Hole Lead-Form [ex.PC817XF]

PC817 Package: Wide Through-Hole Lead-Form [ex.PC817XF]

  • Wide SMT Gullwing Lead-Form [ex.PC817XFP]

PC817 Package: Wide SMT Gullwing Lead-Form [ex.PC817XFP]


PC817 Manufacturer

Sharp Microelectronics of the Americas (SMA) drives innovative LCD, optoelectronics, memory, imager, and RF components to market. The world's leading manufacturers of consumer and business technologies look to SMA for the products, expertise, and worldwide support they need to make their visions a reality. SMA, in Camas, Washington, is the microelectronics sales and marketing division of Sharp Electronics Corporation, a wholly owned subsidiary of Sharp Corporation.


PC817 Alternatives

These are the alternative options: 4N25, 6N136, MOC3021, MOC3041, 6N137


PC817 Equivalents

The replacement and equivalent of PC817 optocoupler are PC816, PC123, TLP621, TLP321, TLP421, PC17K1, H11A817, SFH615A, PS2501-1, PS2561-1, PS2571-1, LTV-816, LTV-817(-V), LTV123, LTV-610 K1010, K817P, SFH615A


Where to use PC817

If you are going to design an electronic circuit in which there is a chance of voltage spikes or voltage surge which may weak or destroy the components or the circuit then you can use the PC817 optocoupler to isolate the circuit. Moreover it can also be used to remove noise from an electronic signal, isolate DC and low voltage circuits from AC and high voltage circuits. You can also use it where you want to control larger voltage or AC voltage from small any small signal which can be a digital signal or analog.


How to use PC817

Using PC817 optocoupler is easy, there are four pins shown in the above pinout details. The pin 1 is anode or positive pin of the IR LED should be connected from the output signal of your circuit and pin2 should be connected to the ground. The other part of the circuit which you want to isolate or controlled should be connected with the pin3 (Emitter of the photo transistor) and pin4 (Collector of the photo transistor). The pin3 and pin4 works same as any other normal transistor for example a BJT transistor’s emitter and collector.


How to Safely Long Run PC817 in Circuit

To safely long run PC817 optocoupler in your circuit is recommended to always stay below the absolute maximum ratings. Do not drive load more than 50mA, The internal IR LED can be derived same as you drive any other normal LED with a current limiting resistor therefore always use a current limiting resistor at the pin1 of optocoupler which is the IR LED anode or positive pin. Do not operate the device in temperature below -30 centigrade and above 100 centigrade and always store in temperature above -55 centigrade and below 125 centigrade.


PC817 Popularity by Region

PC817 Popularity by Region


PC817 Market Price Analysis


Component Datasheet

PC817 Datasheet


FAQ

  • What is PC 817?

PC817 is also known as an optocoupler / optoisolator. It consists of Infrared Emitting Diode (IRED). This IRED is coupled to a photo transistor optically and not electrically. It is closed in a four (4) pin package. This package is usually available in two different forms.

  • Why is Optocoupler Used?

When used correctly, an Optocoupler can effectively: Remove electrical noise from signals. Isolate low-voltage devices from high-voltage circuits. Allow you to use small digital signals to control larger AC voltages.

  • What is a PC817 Pinout?

PC817 Pinout consists of four (4) pins in total, first two are connected with the Infrared Emitting Diode (IRED) while the last two are connected with Photo Transistor.

  • How Does PC817 Work?

In PC817 photoisolator IC circuit, the IR receives the noisy signal as a power from the one circuit and passes it to the other part through the IR signal. The other part receives the signal and then performs according to the circuit design.

 

Ordering & Quality

Photo Mfr. Part # Company Description Package PDF Qty Pricing
(USD)
PC817X1J000F PC817X1J000F Company:Sharp Microelectronics Remark:OPTOISOLATOR 5KV TRANS 4DIP Package:4-DIP (0.300", 7.62mm)
DataSheet
In Stock:On Order
Inquiry
Price:
Call
Inquiry

Related Articles

Introduction to 2N7002: N Channel Logic Level MOSFET

Billily 3 Dec 2020  232

DescriptionThe 2N7002 is a logic level MOSFET with a low on-state resistance. The mosfet has a low gate to source threshold voltage of 2.1V typically this makes the mosfet suitable even for ...

Continue reading »

1N5819 Schottky Diode: Equivalent, Datasheet, Application [FAQ]

Mia 14 Dec 2020  236

The 1N5819 is a Schottky diode with a low forward voltage drop and high switching speed. It is commonly used in high frequency applications like Inverters, DC-DC converters&nb...

Continue reading »

74LS00 Nand Gate: Pinout, Parameter, Specification

Mia 29 Aug 2020  552

Description74LS00 contains 4 independent gates each of which performs the logic NAND function. The 74LS00 is one of the best known and most basic of a series of logic gates. There are three gates, AND...

Continue reading »

TL431 Working Principle: How Dose TL431 Work? [Datasheet]

Iggy 20 Feb 2021  1786

I DescriptionTL431 is a 3-terminal adjustable shunt reference voltage source with good thermal stability. Also, TL431 is also called a voltage regulator or 3-terminal sampling integrated circuit. Its ...

Continue reading »

AMS1117 Voltage Regulator: Feature, Pinout, Datasheet [Video]

Mia 17 Dec 2020  318

  In this post today, I’ll walk you through the introduction to AMS1117. I suggest you guys read this post all the way through, as I’ll be discussing pinout, datasheet, features, and...

Continue reading »

0 comment

Leave a Reply

Your email address will not be published.

 
 
   
 
Rating:

# 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z