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Best Optocouplers - Holiday Sale

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Last Updated - 16.12.2025

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01

DONGKER

Optocoupler Isolation Module, DC 12V-24V 8-Channel Optocoupler Isolation Board, 8-Channel NPN Low High Level Output Signal Converter

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9.9

Exceptional

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Main highlights

Supports DC 12V ~ 24V input.
NPN / PNP signal output (low/high level)
It is a DC 12V 24V 8-channel optocoupler insulation module. It can detect 8-channel DC input power sources and output DC voltage according to the detection results. The output results can be applied to PLC systems and other control devices. It can detect whether input power is present. The output status changes when the input power is detected.
DC 1.8V-24V load voltage.
8-channel input and output. Optocoupler isolation control

16,99 €
02

DollaTek

DollaTek 5pcs 817 Optocoupler 2-Way Voltage Insulation Board Voltage Control Switch Module

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9.8

Exceptional

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Main highlights

This module is used when it is required to isolate the control at actual work and voltage conversion.
The photoelectric insulation has a strong anti-interference ability. The latter can drive high performance triodes, MOS tubes and other applications that require high voltage, and can also directly drive 24V low-power relays.
It can realize 3.3V or 5V to control the interface with a voltage level of 3.6 to 24V. After switching on the control terminal, the controlled terminal is also switched on.
If it is a pulse signal, please note that the limit of 817 is below 4 kHz. If the control signal is greater than 4 kHz, please do not use this module, it will not work properly.

15,70 €
Value for Money

03

JZK

JZK PC817C Optocoupler 2.54 mm DIP 4 Pin 4-Pin 4-Pin Photo Coupler for Mounting, High Density Mounting Type Optocoupler IC, Photoelectric Coupler Pack of 50

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9.7

Exceptional

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Main highlights

These optocouplers are industry standard and are very easy to use. Ideal for use as a die, strip or bread board and inexpensive.
These optocoupler 4-pin mounting are made of high-quality PC material, are small and lightweight, have a high impact resistance, a large operating temperature range and a long service life.
The purpose of the optocoupler is to increase safety, reduce circuit noise and simplify circuit design.
The DIP-4 optocoupler can be used for computer terminals, thyristor system devices, heaters, photocopiers, fans, meters, ticket machines, etc.
Optocouplers are responsible for signal transmission between circuits, so their front ends are completely isolated from the load.

6,29 €
04

RUNCCI-YUN

RUNCCI-YUN 60pcs PC817 2.54mm Pitch 4 Pin DIY DIP-4 Optocoupler

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9.6

Exceptional

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Main highlights

Pin spacing: 2.54 mm, peak forward current strength: 1A
Pack of 60 optocouplers, DIP-4, PC817C.
Optocoupler output form: optical transistor
Number of pins: 4 pins
High insulation voltage: 5000 V (effective value)

6,99 €
05

Hailege

Hailege 2pcs PC817 2-Channel Optocoupler Insulation Module 817 Voltage Insulation Voltage Converter Module 3.6-30V Photoelectric Insulated Module (2/4/8 Channel Optional)

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9.4

Excellent

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Main highlights

We offer the declaration of conformity. This product also includes an electronic user manual available in English, German, French, Spanish, Italian, Polish and Dutch. If you need support, please contact us.
The jumper cap allows you to determine whether the output port is a high or low output.
Pack of 2, which means you will receive two same units in one type, not two mixed types.
PC817 Optocoupler Insulation Board 2/4/8 Channel 817 Voltage Isolation Module
Each channel of the PC817 optocoupler insulation board is independent and can control different voltages at the same time

5,99 €
06

Jadeshay

8 Channel Optocoupler Insulation Board Module 817 3.6-30V Optoelectronic Insulated Module Optocoupler Insulation Board

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9.1

Excellent

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Main highlights

Versatile drivability: The optical insulation of the board provides strong interference resistance, so it can control high-performance transistors, MOS tubes and other high voltage devices. It can also directly drive 24V low power relay, making it an ideal solution for a variety of driving needs.
Multiple channels for simultaneous control: The 817's 8 channels on the board are independent of each other, which allows users to control different voltages or other parameters at the same time. This feature makes the card the ideal choice for complex applications requiring multiple control channels.
High-quality PCB: The optocoupler insulation board is made of high-quality PCB materials, which are characterised by reliability, miniaturisation, good maintenance and interchangeability. This ensures consistent, long-lasting performance and makes it easy to integrate the board into your designs.
Flexible output options: The insulation board comes with a jumper hat that allows users to choose between high-flat output or pull-down output as needed. This feature provides greater flexibility and versatility in terms of using the board.
Control interface voltage compatibility: the module is compatible with a 3.3V or 5V control interface with a voltage level of 3.6-24V. It also turns on the controlled terminal, making it easier to use in a variety of applications.

6,99 €
07

JZK

JZK PC817 4-Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Insulated Module PC 817

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9.0

Excellent

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Main highlights

This module is used when isolated control and voltage conversion are required in practice.
The optical insulation has strong anti-interference ability. The latter can control high-performance three-tubes, MOS tubes and other occasions that require high voltage control, and can also directly drive 24V low power relay to work.
Module parameters: driver signal voltage: 3.6-24V Output voltage range: 3.6V-30V. The 4 channels of the 817 on the board are independent, which can realize simultaneous control of different voltages. Board Size: 48mm x 38mm; Hole Distance Long Side: 42mm; Wide Side Hole Spacing: 32mm
It can realise a 3.3 V or 5 V control interface with a voltage level of 3.6 V - 24 V. After the control terminal has been turned on, the controlled terminal is also switched on
If it is a pulse signal, please note that the limit of 817 is below 4 kHz. Please do not use this module for control signals greater than 4 kHz, as it does not work properly.

4,49 €
08

JZK

JZK 2 x Optical Isolator Module, Optocoupler 12 V 80 KHz 1 Channel Insulated Current Transformer Board PC817 EL817 PLC Processors, Voltage Current Converter Module

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8.9

Very Good

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Main highlights

The module uses optocoupler insulation, which is stable and reliable and has a long service life.
The module is suitable for isolation when the output level of the SCM is used to control inductive components such as motors, and anti-interference protects some circuits of the single-chip microcomputer.
The 1-channel optocoupler insulation module features 5.0 increment screw terminals for convenient wiring.
Package Includes:2pcs 12V 1 Way Optocoupler Isolation Module
Input signal voltage: DC 12V. Output signal voltage: wide voltage suitable for DC1.8V-24V. Features of EL817: the insulation voltage is greater than 3000V Input current max. 50mA Working current>1MA. Maximum output current 50mA (input current must be 15-20mA).

6,89 €
09

Youmile

Youmile Pack of 5 PC817 2 Channel Optocoupler Insulation Board Voltage Converter 3.6-30V Driver Photoelectric Insulated Module with 24AWG Cable

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8.7

Very Good

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Main highlights

Package Content:5 x PC817 2 Channel Optocoupler Insulation Board,1 x 19.6" 24AWG Cable
Voltage of the drive connection: 3.3-24V; Output voltage range: 3.6-30V (The output current depends on the situation, but not above 10mA. When the total power is fixed, voltage and current are inversely proportional)
Onboard 2-channel 817 are independent: can achieve a different voltage control at the same time
Jumper cap can achieve that the output connection is high potential or low
If this is a pulse signal, please note that the limit value of 817 is below 3 kHz. If the control signal is greater than 3KHz, please do not use this module, it does not work properly.

9,59 €
10

GERUI

8 Channel Optocoupler Insulation Board Module 817 3.6-30V Optoelectronic Insulated Module Optocoupler Insulation Board (2)

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile control options: the optical isolation of the board provides high interference resistance, so it can control high performance transistors, MOS tubes and other high voltage equipment. It can also directly drive 24-volt low-power relay, making it an ideal solution for a variety of drive needs.
Simultaneous Multi-Channel Control The 8 channels of the card 817 are independent of each other, allowing the user to control different voltages or other parameters at the same time.
HIGH QUALITY PCB: The insulated optocoupler boards are made of high quality PCB material to ensure reliability, miniaturization, maintenance and interchangeability. Determine consistent, long-lasting performance and ensure that the board integrates easily into your design.
HIGH OR PULL DOWN OUTPUTS Whether the output is a high or pull down output, can be adjusted with jumper caps.
Compatibility with control interface voltages: the module is compatible with voltage levels of 3.6-24V control interfaces. It also opens the controlled clamp, making it easier to use in a variety of applications. When the control terminal is turned on, the controlled clamp is switched on at the same time.

7,99 €