Shop optocoupler relay module

Sponsored
About our ads
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
$12.49
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 8 Channel)
Amazon.com
$12.49
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 8 Channel)
Amazon.com
$2.99
1 Channel 3.3V Low Level Trigger Relay Module For Arduino With Optocoupler Isolation
Evalm
$2.99
1 Channel 3.3V Low Level Trigger Relay Module For Arduino With Optocoupler Isolation
Evalm
$2.48
Hiletgo 2Pcs 5V One Channel Relay Module Relay Switch With Opto Isolation High Low Level Trigger
Burc
$2.48
Hiletgo 2Pcs 5V One Channel Relay Module Relay Switch With Opto Isolation High Low Level Trigger
Burc
$0.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 1CH
Evalm
$0.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 1CH
Evalm
$1.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 2CH
Evalm
$1.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 2CH
Evalm
$1.06
$1.44
3.3V 5V 12V 24V 1 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
Aliexpress
26% off
$1.06
$1.44
3.3V 5V 12V 24V 1 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
Aliexpress
$1.11
1-10PCS 24V 12V 5V 1 Way Relay Module For Arduino 1 Channel Relay Module With Optocoupler Relay
Aliexpress
$1.11
1-10PCS 24V 12V 5V 1 Way Relay Module For Arduino 1 Channel Relay Module With Optocoupler Relay
Aliexpress
$0.98
$1.31
1 Channel Optocoupler Isolation Module 3V-5V 12V 24V Photoelectric Isolator Rail Holder Drive Motor
Aliexpress
25% off
$0.98
$1.31
1 Channel Optocoupler Isolation Module 3V-5V 12V 24V Photoelectric Isolator Rail Holder Drive Motor
Aliexpress
$2.70
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$2.70
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$23.99
Optocoupler Isolated 4-Channel Relay Module, High/Low Trigger Support, 5V-24V 24V
Digitalzakka
$23.99
Optocoupler Isolated 4-Channel Relay Module, High/Low Trigger Support, 5V-24V 24V
Digitalzakka
$3.57
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$3.57
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$3.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 8CH
Evalm
$3.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 8CH
Evalm
$3.98
$5.68
3.3V 5V 12V 24V 4 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
Aliexpress
29% off
$3.98
$5.68
3.3V 5V 12V 24V 4 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
Aliexpress
$1.91
$3.86
1/2/4/8 Channel Relay Module 5V/12V/24V With Optocoupler Isolation High/Low Level Dual Trigger For
Aliexpress
50% off
$1.91
$3.86
1/2/4/8 Channel Relay Module 5V/12V/24V With Optocoupler Isolation High/Low Level Dual Trigger For
Aliexpress
$1.80
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
$1.80
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
$1.45
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$1.45
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$2.18
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress
$2.18
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress
$5.01
$9.81
1 Channel Way Optocoupler Isolation Module PC817 EL817 3V-5V 12V 24V Photoelectric Isolator Rail
Aliexpress
48% off
$5.01
$9.81
1 Channel Way Optocoupler Isolation Module PC817 EL817 3V-5V 12V 24V Photoelectric Isolator Rail
Aliexpress
$23.99
Optocoupler Isolated 4-Channel Relay Module, High/Low Trigger Support, 5V-24V 12V
Digitalzakka
$23.99
Optocoupler Isolated 4-Channel Relay Module, High/Low Trigger Support, 5V-24V 12V
Digitalzakka
$4.05
5V/12V 16 Channel Relay Module For Arduino ARM PIC AVR DSP Electronic Relay Plate Belt Optocoupler
Aliexpress
Free shipping
$4.05
5V/12V 16 Channel Relay Module For Arduino ARM PIC AVR DSP Electronic Relay Plate Belt Optocoupler
Aliexpress
$8.92
4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low PLC
Aliexpress
$8.92
4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low PLC
Aliexpress
$43.78
Youmile 5 Pcs 5 V Two 2 Channel Relay Module With Optocoupler For Arduino Pic Avr Dsp Arm
Everymarket INC
$43.78
Youmile 5 Pcs 5 V Two 2 Channel Relay Module With Optocoupler For Arduino Pic Avr Dsp Arm
Everymarket INC
$0.62
$0.88
5V/12V 1/2/4/6/8 Channel Relay Module With Optocoupler - Relay Output, Compatible With Arduino, In
Aliexpress
29% off
$0.62
$0.88
5V/12V 1/2/4/6/8 Channel Relay Module With Optocoupler - Relay Output, Compatible With Arduino, In
Aliexpress
$2.61
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$2.61
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$2.54
5V 2 Channel DC 5V Relay Module High And Low Level Trigger With Optocoupler Isolation Relay Module
Aliexpress
$2.54
5V 2 Channel DC 5V Relay Module High And Low Level Trigger With Optocoupler Isolation Relay Module
Aliexpress
$8.37
5V 12V 24V 8 Channel Relay Module With Optocoupler Relay Output 8 Way Relay Module For Arduino
Aliexpress
$8.37
5V 12V 24V 8 Channel Relay Module With Optocoupler Relay Output 8 Way Relay Module For Arduino
Aliexpress
$25.12
Aediko 4Pcs Relay Module Dc 12 V Relay Board 1 Channel With Optocoupler Isolation Support High Or Low Level Trigger
Everymarket INC
$25.12
Aediko 4Pcs Relay Module Dc 12 V Relay Board 1 Channel With Optocoupler Isolation Support High Or Low Level Trigger
Everymarket INC
$0.54
$0.60
1 Channel Way Optocoupler Isolation Module PC817 3V-5V 12V 24V Photoelectric Isolator Rail Holder
Aliexpress
10% off
$0.54
$0.60
1 Channel Way Optocoupler Isolation Module PC817 3V-5V 12V 24V Photoelectric Isolator Rail Holder
Aliexpress
$33.00
4 Bit Optocoupler Isolator Module,Plc Signal Level Voltage Converter Board Module (12 V To 3.3 V)
Everymarket INC
$33.00
4 Bit Optocoupler Isolator Module,Plc Signal Level Voltage Converter Board Module (12 V To 3.3 V)
Everymarket INC
$2.52
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$2.52
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$6.47
$6.74
Optocoupler Isolation Relay Module 4 Channel FET Field-Effect Tube Module NMOS FR1205 DC 5-24V
Aliexpress
$6.47
$6.74
Optocoupler Isolation Relay Module 4 Channel FET Field-Effect Tube Module NMOS FR1205 DC 5-24V
Aliexpress
$3.23
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
Free shipping
$3.23
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$23.99
Optocoupler Isolated 4-Channel Relay Module, High/Low Trigger Support, 5V-24V 5V
Digitalzakka
$23.99
Optocoupler Isolated 4-Channel Relay Module, High/Low Trigger Support, 5V-24V 5V
Digitalzakka
$1.76
1-10PCS 5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8Channel Relay Module For
Aliexpress
$1.76
1-10PCS 5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8Channel Relay Module For
Aliexpress
$0.97
$1.12
TZT 5V 12V 1 2 4 6 8 Channel Relay Module With Optocoupler. Relay Output 1 2 4 6 8 Way Relay Module
Aliexpress
13% off
$0.97
$1.12
TZT 5V 12V 1 2 4 6 8 Channel Relay Module With Optocoupler. Relay Output 1 2 4 6 8 Way Relay Module
Aliexpress
How to Design Relay Module using Optocoupler || Relay Module Circuit
15:04
How to Design Relay Module using Optocoupler || Relay Module Circuit
516 views11 months ago
YouTubeTechEcos
How Optocouplers work - opto-isolator solid state relays phototransistor
18:07
How Optocouplers work - opto-isolator solid state relays phototransistor
1.5M viewsMar 21, 2021
YouTubeThe Engineering Mindset
How to make relay module with Optocoupler | Relay module circuit
4:35
How to make relay module with Optocoupler | Relay module circuit
3.2K viewsNov 14, 2023
YouTubeDiy Tech Shop
How to Control a Relay Module Using Optocoupler & Transistor in Proteus | Isolated Power Switching
8:01
How to Control a Relay Module Using Optocoupler & Transistor in Proteus | Isolated Power Switching
1.6K views5 months ago
YouTubeElectronic simulation
How To Use An Opto-coupler with Arduino & Relay_ PC817 opto-coupler
13:27
How To Use An Opto-coupler with Arduino & Relay_ PC817 opto-coupler
1.9K viewsOct 26, 2023
YouTubeTakim Mallick
Electronic Basics #32: Relays & Optocouplers
8:21
Find in video from 06:03Introduction to Optocouplers
Electronic Basics #32: Relays & Optocouplers
534.5K viewsOct 29, 2017
YouTubeGreatScott!
5V 1 Channel Level Trigger Optocoupler Relay Module For Arduino
4:33
5V 1 Channel Level Trigger Optocoupler Relay Module For Arduino
124.2K viewsJun 11, 2019
YouTubeUnboxing Channel
0:57
Relay Module Working Demo: Optocoupler PC-817 and BC547 Transistor Circuit
1.5K viewsJun 12, 2023
YouTubeSaurabh Suryawanshi
2:50
DIY Relay Module Optocoupler Based || LOW Triggered 1 Channel Relay Driver Board
23.1K viewsFeb 25, 2023
YouTubeYellow Purple
5:44
How to Use Optocoupler to control Relay and Bulb - Proteus Simulation
7.9K viewsApr 12, 2022
YouTubeSatyam Singh
0:42
optocoupler and relay #optocoupler #electronics #electrical
1.1K viewsFeb 28, 2025
YouTube
0:33
24V 8-Channel Relay Module âš¡ | Optocoupler Protection Explained! #shorts #electronics
2.3K views10 months ago
YouTuberndstore.in_
0:52
"How to Replace a Relay with a MOSFET Using Optocoupler in Proteus | Isolated Power Switching"
1.3K views5 months ago
YouTubeElectronic simulation
1:57
Configurable Active High or Low Relay Module, with opto-isolated input
65.2K viewsAug 10, 2019
YouTubeCytron Technologies
5:53
How to Replace a Relay with a MOSFET Using Optocoupler in Proteus | Isolated Power Switching
549 views4 months ago
YouTubeElectronic simulation
8:40
Watch Me Design A Circuit Board From Scratch!
49 views6 months ago
YouTubeOPEN PCB
4:18
How to use an Optocoupler Relay with FPB-RA0E1
78 views7 months ago
YouTubeRenesasPresents
What is Optocoupler ? How Optocoupler Works ? The Optocoupler Explained
13:21
Find in video from 11:44Differences Between Optocouplers and Relays
What is Optocoupler ? How Optocoupler Works ? The Optoco…
131.8K viewsJun 8, 2021
YouTubeALL ABOUT ELECTRONICS
11:26
All About PC817 Optocoupler
6.7K views4 months ago
YouTubeCrazy Couple DIY
3:11
Optocoupler Relay Module: maintaining isolation
292 views8 months ago
YouTubePhilip Giacalone
10:47
8 Channel HIGH Triggered relay driver circuit Using 5v Relay
8.4K viewsSep 28, 2020
YouTubeEE Wave
0:11
Electronic components comparison : Optocouplers vs Relays
7K views6 months ago
YouTubeElectronics Education
0:43
How to Control a Relay Module Using Microcontroller in Proteus | Step-by-Step Tutorial
1.3K views6 months ago
YouTubeElectronic simulation
Relay 12V with Optocupler, how to?
Sep 1, 2018
arduino.cc
6:24
How an Optocoupler Works and Example Circuit
195.2K viewsMay 22, 2019
YouTubeLudic Science
2 and 4 CHANNEL RELAY WITH OPTOCOUPLER
3:33
Find in video from 00:31Fungsi Relay 2 Channel
2 and 4 CHANNEL RELAY WITH OPTOCOUPLER
19.3K viewsMar 5, 2021
YouTubeCNC STORE BANDUNG
3:11
NO NC Relay (1-Channel) DC 5V with Optocoupler Isolator
10K viewsSep 16, 2022
YouTubeThe TECH Tract
1:51
optocoupler pc817 simulation with relay in proteus
5.3K viewsOct 6, 2023
YouTubeElectronic simulation
7:45
LTSpice PC817 Optocoupler Tutorial: Operation, Simulation & Analysis || Hardware Design||
1.3K viewsApr 8, 2025
YouTubeZenith Circuit
I Figured Out the SECRET to Running 5V Relay on 3.3V Microcontrollers! | Easy Optocoupler Hack
1:51
Find in video from 01:26Testing the Relay Module
I Figured Out the SECRET to Running 5V Relay on 3.3V Microc…
1.4K viewsOct 24, 2024
YouTubeElectron XYZ
See more

Shop optocoupler relay module

Sponsored
About our ads
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
$12.49
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 8 Channel)
Amazon.com
$12.49
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 8 Channel)
Amazon.com
$2.99
1 Channel 3.3V Low Level Trigger Relay Module For Arduino With Optocoupler Isolation
Evalm
$2.99
1 Channel 3.3V Low Level Trigger Relay Module For Arduino With Optocoupler Isolation
Evalm
$2.48
Hiletgo 2Pcs 5V One Channel Relay Module Relay Switch With Opto Isolation High Low Level Trigger
Burc
$2.48
Hiletgo 2Pcs 5V One Channel Relay Module Relay Switch With Opto Isolation High Low Level Trigger
Burc
$0.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 1CH
Evalm
$0.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 1CH
Evalm
$1.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 2CH
Evalm
$1.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 2CH
Evalm
$1.06
$1.44
3.3V 5V 12V 24V 1 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
Aliexpress
26% off
$1.06
$1.44
3.3V 5V 12V 24V 1 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
Aliexpress
$1.11
1-10PCS 24V 12V 5V 1 Way Relay Module For Arduino 1 Channel Relay Module With Optocoupler Relay
Aliexpress
$1.11
1-10PCS 24V 12V 5V 1 Way Relay Module For Arduino 1 Channel Relay Module With Optocoupler Relay
Aliexpress
$0.98
$1.31
1 Channel Optocoupler Isolation Module 3V-5V 12V 24V Photoelectric Isolator Rail Holder Drive Motor
Aliexpress
25% off
$0.98
$1.31
1 Channel Optocoupler Isolation Module 3V-5V 12V 24V Photoelectric Isolator Rail Holder Drive Motor
Aliexpress
$2.70
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$2.70
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$23.99
Optocoupler Isolated 4-Channel Relay Module, High/Low Trigger Support, 5V-24V 24V
Digitalzakka
$23.99
Optocoupler Isolated 4-Channel Relay Module, High/Low Trigger Support, 5V-24V 24V
Digitalzakka
$3.57
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$3.57
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And Low Triger
Aliexpress
$3.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 8CH
Evalm
$3.99
8 Channel Relay Module With Optocoupler Output Low Level Trigger 5V 12V 24V 8CH
Evalm
$3.98
$5.68
3.3V 5V 12V 24V 4 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
Aliexpress
29% off
$3.98
$5.68
3.3V 5V 12V 24V 4 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
Aliexpress
$1.91
$3.86
1/2/4/8 Channel Relay Module 5V/12V/24V With Optocoupler Isolation High/Low Level Dual Trigger For
Aliexpress
50% off
$1.91
$3.86
1/2/4/8 Channel Relay Module 5V/12V/24V With Optocoupler Isolation High/Low Level Dual Trigger For
Aliexpress
$1.80
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
$1.80
DC 5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler
Aliexpress
$1.45
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$1.45
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
$2.18
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress
$2.18
2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino R3 MEGA
Aliexpress