---
product_id: 240691469
title: "DONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module"
brand: "dongker"
price: "$48.90"
currency: USD
in_stock: true
reviews_count: 8
category: "Dongker"
url: https://www.desertcart.ec/products/240691469-dongker-optocoupler-isolation-board-dc-3-3v-5v-pnp-npn
store_origin: EC
region: Ecuador
---

# Wide voltage range 1.8V-24V load 8-channel multi-signal control Optocoupler isolation for noise-free signals DONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module

**Brand:** dongker
**Price:** $48.90
**Availability:** ✅ In Stock

## Summary

> 🛠️ Power your projects with flawless isolation and multi-channel control!

## Quick Answers

- **What is this?** DONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module by dongker
- **How much does it cost?** $48.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/240691469-dongker-optocoupler-isolation-board-dc-3-3v-5v-pnp-npn)

## Best For

- dongker enthusiasts

## Why This Product

- Trusted dongker brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Noise Isolation:** Optocoupler technology ensures clean, interference-free signal transmission.
- • **8-Channel Signal Mastery:** Seamlessly manage multiple inputs and outputs with precision and ease.
- • **Compact & Durable Design:** PCB mountable copper build rated up to 85°C for reliable industrial performance.
- • **PNP & NPN Output Flexibility:** Adapt effortlessly to both low and high-level signal requirements.
- • **Universal Voltage Compatibility:** Supports DC 3.3V to 5V input and up to 24V load voltage for versatile applications.

## Overview

The DONGKER Optocoupler Isolation Board is an 8-channel signal converter module designed for industrial and scientific applications. It supports DC input voltages from 3.3V to 5V and load voltages from 1.8V to 24V, with both PNP and NPN output compatibility. Featuring optocoupler isolation, it ensures noise-free signal transmission, housed in a compact, PCB-mountable copper design rated for up to 85°C operation.

## Description

DONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module: desertcart.com: Industrial & Scientific

Review: FAR SUPERIOR - These octopus couplers are far superior to the old individual ones
Review: muy conforme - excelente producto

## Features

- Optocoupler isolation control.
- 8-Channel input and output.
- NPN / PNP (Low/High level) signal output.
- Support DC 3.3V~5V Input.
- DC 1.8V-24V load voltage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08LYQQ7X6 |
| Best Sellers Rank | #43,946 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Optocouplers |
| Brand | DONGKER |
| Connector Type | IDC |
| Date First Available | October 27, 2020 |
| Item Weight | 1.44 ounces |
| Item model number | 1 |
| Manufacturer | DONGKER |
| Material | Copper |
| Mounting Type | PCB Mount |
| Number Of Contacts | 8 |
| Number Of Poles | 8 |
| Package Dimensions | 3.94 x 2.52 x 0.75 inches |
| UPC | 770264202464 |
| Upper Temperature Rating | 85 Degrees Celsius |
| Voltage | 24 Volts (DC) |

## Product Details

- **Brand:** DONGKER
- **Connector Type:** IDC
- **Manufacturer:** DONGKER
- **Material:** Copper
- **Mounting Type:** PCB Mount
- **Number Of Contacts:** 8
- **Number Of Poles:** 8
- **UPC:** 770264202464
- **Upper Temperature Rating:** 85 Degrees Celsius
- **Voltage:** 24 Volts (DC)

## Images

![DONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module - Image 1](https://m.media-amazon.com/images/I/31458O5WEVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ FAR SUPERIOR
*by M***. on November 5, 2025*

These octopus couplers are far superior to the old individual ones

### ⭐⭐⭐⭐⭐ muy conforme
*by L***Z on August 20, 2025*

excelente producto

### ⭐⭐ Doesn't Meet Spec.
*by M***L on April 13, 2025*

I couldn't get the board to work. It wouldn't even sink the 50ma that is advertised. I ended up replacing the Opto Isolators with an NPN transistor (with a series resistor to base) to be able to use the board. Therefore, I have no Optical Isolation. Disappointed.

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**Shop now:** [https://www.desertcart.ec/products/240691469-dongker-optocoupler-isolation-board-dc-3-3v-5v-pnp-npn](https://www.desertcart.ec/products/240691469-dongker-optocoupler-isolation-board-dc-3-3v-5v-pnp-npn)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-16*