--- product_id: 182192103 title: "4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module PLC Signal Converter Module PNP NPN to PNP (12V to 3.3V)" brand: "noyito" price: "€ 15.73" currency: EUR in_stock: true reviews_count: 2 category: "Noyito" url: https://www.desertcart.hr/products/182192103-4-channel-optocoupler-photoelectric-isolator-module-level-voltage-converter-module store_origin: HR region: Croatia --- # 20kHz max freq conversion 4-channel multi-signal isolation anti-reverse power protection 4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module PLC Signal Converter Module PNP NPN to PNP (12V to 3.3V) **Brand:** noyito **Price:** € 15.73 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your signal game with NOYITO’s 4-Channel Optocoupler — isolation meets precision! ## Quick Answers - **What is this?** 4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module PLC Signal Converter Module PNP NPN to PNP (12V to 3.3V) by noyito - **How much does it cost?** € 15.73 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/182192103-4-channel-optocoupler-photoelectric-isolator-module-level-voltage-converter-module) ## Best For - noyito enthusiasts ## Why This Product - Trusted noyito brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Mount-Ready:** Slim 45x72x18mm footprint with precise mounting holes fits perfectly in your control panel. - • **LED Status Indicators:** Instant visual feedback on signal activity—debug smarter, not harder. - • **Quad-Channel Versatility:** Four independent channels handle PNP/NPN signals for ultimate multi-device compatibility. - • **Built-in Power Protection:** Anti-connection safeguard prevents costly wiring mistakes—engineered for peace of mind. - • **Seamless 20kHz Signal Conversion:** Keep your PLC and microcontrollers in sync with high-speed optocoupler isolation. ## Overview The NOYITO 4-Channel Optocoupler Photoelectric Isolator Module is a compact, high-quality level voltage converter designed for industrial and DIY applications. Supporting up to 20kHz signal conversion frequency, it isolates and converts PNP/NPN signals across multiple voltage levels (3.3V to 24V). Featuring anti-reverse power protection and LED indicators, this module ensures reliable, safe, and easy-to-debug signal interfacing for microcontrollers and PLCs. Its versatile mounting options and four independent channels make it a must-have for professional-grade signal isolation and level shifting. ## Description NOYITO 4-Channel Optocoupler Photoelectric Isolator Module User Manual https://1drv.ms/u/c/4a0865b22350d05c/IQBc0FAjsmUIIIBKjQAAAAAAAWm4GTiBaneVQWBLrVwZ-AM?e=tr7Pmm Description: With high quality optocoupler With LED patch indicator. The power supply has anti-connection protection. The limit conversion frequency is 20Khz. Module size: 45x72x18mm (LxWxH). Mounting hole dimensions: 40x37mm (LxW) Widely used, it can be used for signal isolation, level conversion between signals such as single chip microcomputer and PLC. NP,NPN signal to NPN signal, signal level conversion and other uses. Choose the right product for your needs. Input and Output Parameters: NPN / PNP Input PNP Output 3.3V to 3.3V 3.3V to 5V 3.3V to 12V 3.3V to 24V 5V to 3.3V 5V to 5V 5V to 12V 5V to 24V 12V to 3.3V 12V to 5V 12V to 12V 12V to 24V 24V to 3.3V 24V to 5V 24V to 12V 24V to 24V Package Included: 1pcs NOYITO 4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module Review: Great for Raspberry Pi Digital Input - A nice modular solution to getting isolated digital inputs to my Raspberry Pi. The LEDs are a nice touch. Very helpful when you're debugging. You have to do some circuit design to get the inputs powered, but that's to be expected. I use them for digital inputs (like switch contact closures, etc.). I don't use them for analog inputs. I haven't tested them to see if they are linear enough to use as analog inputs and I can't find any documentation on that issue. All-in-all a nifty component to keep on hand for my Raspberry Pi projects. Remember they come in different voltage options that you have to specify when you order them. Looks like the boards are identical with some component value substitutions to get the various voltage levels. There's a little silk-screen checklist where the input and output voltages are marked at the factory. The only thing that would make this product better would be a version that fit the Raspberry Pi like a 'hat' with a stackable GPIO connector and jumpers similar to the relay boards like this: www.desertcart.com/gp/product/B07CZL2SKN. As it is, you'll have to solve the mounting problem on your own. I use standoffs and screws to mount them to breadboards. Review: Not usable out-of-the-box, but can be fixed easily - I got the 12v to 3.3v. It comes with a 10k pulldown and a 1k in series with a LED pulldown. Low voltage is 700mV, which is higher than most MCU specs for low. It may be detected ok, but it is out of the specs. In the original configuration, it cannot handle over 2kHz without the low voltage increasing to >1V. Adding an additional 500Ohm pulldown fixes the problem and allows to get up to 40kHz. So, 2* because it is a good board for the price and I would buy another one (saves time compared to make a custom PCB). You can fix it easily, but for someone without and oscilloscope, function generator and spare SMD resistors, I would not recommend it. It does not work as advertised. If you need low frequency decoupling and place an additional load resistor at the output, this is a good option. ## Features - NOYITO 4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module with high quality optocoupler and LED patch indicator. - The power supply has anti-connection protection. The limit conversion frequency is 20Khz. - Module size: 45x72x18mm (LxWxH). Mounting hole dimensions: 40x37mm (LxW) - Widely used, it can be used for signal isolation, level conversion between signals such as single chip microcomputer and PLC. PNP,NPN signal to NPN signal, signal level conversion and other uses. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07TBW8PR5 | | Best Sellers Rank | #76,476 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #118 in Signal Converters | | Brand | NOYITO | | Brand Name | NOYITO | | Compatible Devices | Single chip microcomputer, PLC, NPN, PNP signals | | Customer Reviews | 4.1 out of 5 stars 7 Reviews | | Interface | Parallel | | Interface Type | Parallel | | Item Dimensions L x W | 3.39"L x 1.89"W | | Manufacturer | NOYITO | | Material Type | Copper | | Maximum Supply Voltage | 24 Volts (DC) | | Minimum Supply Voltage | 3.3 Volts | | Mounting Type | DIN Rail | | Number of Channels | 4 | | Number of Pins | 8 | | Part Number | fhsru-913 | | Smart Home Compatibility | Not Smart Home Compatible | | UPC | 680613662736 | | Unit Count | 1.0 Count | | Warranty Description | Manufacturer's One-year After-sale Warranty | ## Product Details - **Brand:** NOYITO - **Maximum Supply Voltage:** 24 Volts (DC) - **Minimum Supply Voltage:** 3.3 Volts - **Mounting Type:** DIN Rail - **Number of Pins:** 8 ## Images ![4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module PLC Signal Converter Module PNP NPN to PNP (12V to 3.3V) - Image 1](https://m.media-amazon.com/images/I/81UgQyxWHVL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐ Great for Raspberry Pi Digital Input *by T***R on March 23, 2020* A nice modular solution to getting isolated digital inputs to my Raspberry Pi. The LEDs are a nice touch. Very helpful when you're debugging. You have to do some circuit design to get the inputs powered, but that's to be expected. I use them for digital inputs (like switch contact closures, etc.). I don't use them for analog inputs. I haven't tested them to see if they are linear enough to use as analog inputs and I can't find any documentation on that issue. All-in-all a nifty component to keep on hand for my Raspberry Pi projects. Remember they come in different voltage options that you have to specify when you order them. Looks like the boards are identical with some component value substitutions to get the various voltage levels. There's a little silk-screen checklist where the input and output voltages are marked at the factory. The only thing that would make this product better would be a version that fit the Raspberry Pi like a 'hat' with a stackable GPIO connector and jumpers similar to the relay boards like this: www.amazon.com/gp/product/B07CZL2SKN. As it is, you'll have to solve the mounting problem on your own. I use standoffs and screws to mount them to breadboards. ### ⭐⭐ Not usable out-of-the-box, but can be fixed easily *by P***O on April 28, 2021* I got the 12v to 3.3v. It comes with a 10k pulldown and a 1k in series with a LED pulldown. Low voltage is 700mV, which is higher than most MCU specs for low. It may be detected ok, but it is out of the specs. In the original configuration, it cannot handle over 2kHz without the low voltage increasing to >1V. Adding an additional 500Ohm pulldown fixes the problem and allows to get up to 40kHz. So, 2* because it is a good board for the price and I would buy another one (saves time compared to make a custom PCB). You can fix it easily, but for someone without and oscilloscope, function generator and spare SMD resistors, I would not recommend it. It does not work as advertised. If you need low frequency decoupling and place an additional load resistor at the output, this is a good option. --- ## 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.hr/products/182192103-4-channel-optocoupler-photoelectric-isolator-module-level-voltage-converter-module](https://www.desertcart.hr/products/182192103-4-channel-optocoupler-photoelectric-isolator-module-level-voltage-converter-module) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-18*