--- product_id: 688671810 title: "EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter" brand: "ec buying" price: "1587599₫" currency: VND in_stock: true url: https://www.desertcart.vn/products/688671810-ec-buying-5pcs-3-5v-optocoupler-isolation-board-optoelectronic-isolator store_origin: VN region: Vietnam --- # 3-5V input voltage range -55~110°C operating temp 3000V+ isolation voltage EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter **Brand:** ec buying **Price:** 1587599₫ **Availability:** ✅ In Stock ## Summary > 🛠️ Power your projects with precision and protection! ## Quick Answers - **What is this?** EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter by ec buying - **How much does it cost?** 1587599₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/688671810-ec-buying-5pcs-3-5v-optocoupler-isolation-board-optoelectronic-isolator) ## Best For - ec buying enthusiasts ## Why This Product - Trusted ec buying brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Signal Isolation:** Protect your circuits with 3000V+ isolation for ultimate interference resistance. - • **Robust Thermal Performance:** Operates reliably from -55°C to 110°C, perfect for demanding environments. - • **Wide Voltage Compatibility:** Supports input 3-5V and output 1.8-24V for versatile device integration. - • **Efficient Signal Conversion:** Handles up to 5KHz frequency ensuring smooth, lag-free data transmission. - • **Plug & Play Rail Mount Design:** Easy 5.0 pitch screw terminal wiring with rail bracket for quick installation. ## Overview The EC Buying 5Pcs 3-5V Optocoupler Isolation Board features EL817 optoelectronic isolators delivering reliable signal isolation with over 3000V isolation voltage. Designed for input voltages between 3-5V and output voltages from 1.8V to 24V, it supports up to 5KHz signal frequency and operates in extreme temperatures (-55°C to 110°C). Its rail bracket and 5.0 pitch screw terminals enable easy installation, making it ideal for microcontroller circuit protection, signal level matching, and interference-free signal conversion in professional electronic applications. ## Description EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter ## Features - 1-way optocoupler isolation module with EL817 features, providing input voltage of DC 3V ~ 5V and output voltage suitable for DC1.8V-24V, ensuring broad voltage application and optimal signal conversion for various devices - Opto-isolator with isolation voltage greater than 3000V, offers maximum input current of 50MA and working temperature range of -55~110 degrees, ensuring reliable and safe signal isolation and conversion in diverse environments - PC817 Card Rail Bracket Input 3-5V Optocoupler Isolation Module with maximum output current 50MA, designed for input current within 15-20MA and maximum application signal frequency of 5KHz, ensuring efficient signal conversion and transmission - Optocoupler featuring operating current> 1 MA, suitable for a wide range of input and output signal voltage, and provides optimal signal transmission and conversion for electronic devices and circuits - The card guide rail bracket input 3-5V, the optoelectronic isolator provides a reliable and versatile solution for signal isolation and conversion, ensuring seamless integration and operation in various electronic systems ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | EC Buying | | Item model number | EL817 | | Item Weight | 1.7 ounces | | Package Dimensions | 6.73 x 4.57 x 0.55 inches | | Manufacturer | EC Buying | | ASIN | B0D3CX6NP6 | | Date First Available | May 6, 2024 | ## Product Details - **Brand:** EC Buying - **Colour:** Green - **Item weight:** 1.7 Ounces - **Input voltage:** 5 Volts - **Output voltage:** 5 Volts ## Images ![EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter - Image 1](https://m.media-amazon.com/images/I/61G+gVTLDkL.jpg) ![EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter - Image 2](https://m.media-amazon.com/images/I/41Z+Y-csK1L.jpg) ![EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter - Image 3](https://m.media-amazon.com/images/I/41T0Fam5YCL.jpg) ![EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter - Image 4](https://m.media-amazon.com/images/I/41GNGCqLxpL.jpg) ![EC Buying 5Pcs 3-5V Optocoupler Isolation Board - Optoelectronic Isolator EL817 PC817 - Rail Bracket Input 3-5V - 1 Channel Opto PNP NPN Signal Converter - Image 5](https://m.media-amazon.com/images/I/41U4bB46KZL.jpg) ## Frequently Bought Together - EC Buying 5Pcs 3-5V Optocoupler Isolation Board Optoelectronic Isolator EL817 PC817 Card Rail Bracket Input 3-5 V Optocoupler Isolation Module 1 Channel Opto PNP NPN Signal Converter - HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - Twidec/6Pcs Micro Limit Switch Short Straight Hinge Lever Arm SPDT Snap Action Switch for Arduino V-152-1C25 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/688671810-ec-buying-5pcs-3-5v-optocoupler-isolation-board-optoelectronic-isolator](https://www.desertcart.vn/products/688671810-ec-buying-5pcs-3-5v-optocoupler-isolation-board-optoelectronic-isolator) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-04-23*