--- product_id: 260534443 title: "Tnisesm 20 Pcs 20SQ050 20A 50V Schottky Blocking Diode, Rectifiers Diode,Diode Axial Kit for Solar Panel" brand: "tnisesm" price: "48 zł" currency: PLN in_stock: true reviews_count: 12 category: "Tnisesm" url: https://www.desertcart.pl/products/260534443-tnisesm-20-pcs-20sq050-20a-50v-schottky-blocking-diode-rectifiers store_origin: PL region: Poland --- # 20A forward current 50V peak reverse voltage RoHS lead-free compliance Tnisesm 20 Pcs 20SQ050 20A 50V Schottky Blocking Diode, Rectifiers Diode,Diode Axial Kit for Solar Panel **Brand:** tnisesm **Price:** 48 zł **Availability:** ✅ In Stock ## Summary > ⚡ Keep your solar power unstoppable with Tnisesm’s high-efficiency Schottky diodes! ## Quick Answers - **What is this?** Tnisesm 20 Pcs 20SQ050 20A 50V Schottky Blocking Diode, Rectifiers Diode,Diode Axial Kit for Solar Panel by tnisesm - **How much does it cost?** 48 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/260534443-tnisesm-20-pcs-20sq050-20a-50v-schottky-blocking-diode-rectifiers) ## Best For - tnisesm enthusiasts ## Why This Product - Trusted tnisesm brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Voltage Shield:** Withstands up to 50V peak reverse voltage, protecting your circuits from surges. - • **Eco-Smart Build:** Lead-free and RoHS compliant for sustainable, responsible electronics. - • **Efficiency Edge:** Low forward voltage drop minimizes power loss, maximizing your system’s output. - • **Ready for Anything:** Pack of 20 tested diodes ensures you’re always prepared for unexpected solar strikes. - • **Power Through Peaks:** Handles a robust 20A forward rectified current for high-demand solar setups. ## Overview The Tnisesm 20SQ050 is a pack of 20 high-performance Schottky barrier rectifier diodes rated for 20A forward current and 50V peak reverse voltage. Designed for solar panel protection and other electronics, these lead-free, RoHS-compliant diodes offer low forward voltage drop for minimal power loss. Tested for reliability and consistency, they are ideal for professionals and enthusiasts seeking durable, efficient circuit protection. ## Description Widely used in product development, student experiments, maintenance, production, etc. All products are tested for stability, consistency and reliability. Ensure product excellence. Review: Keeping them handy in case of a lighting strike. - I live off-grid in an Arched cabin that is solar powered. During the summer monsoon season, we can have some wicked lightning storms. My cabin has been hit once already. Fortunately, my solar panels were not damaged. When solar panels are hit by lightning, the most common failure is shorting of the internal Schottky blocking diodes inside the little black box on the back of the solar panel. I ordered these Tnisesm 20A, 50V Schottky diodes to keep on hand in case my panels should be damaged by a lightning strike in the future. Having spares on hand will allow me to get my solar array operational again with little down-time. I tested all 20 diodes with a transistor/diode tester. They all tested well within published tolerances. Review: Low forward biased voltage drop. - Tested all 20 pieces with forward conduction and reverse block, as required. Forward voltage drop was between 100 and 192 millivolts when tested with diode test function on a multimeter. Germanium / Shottky type diodes usually 200mv (0.2v) or less per design. Silicon diodes are designed for a 700mv forward voltage drop when conducting. These will be used in a a12V automotive application to block reverse voltage from auxiliary circuits from back-powering existing circuits. Lighting and signaling circuits and relay control will not exceed published ratings. ## Features - Tnisesm 20SQ050 SCHOTTKY BARRIER RECTIFIER Diode - Part Number: 20SQ050; Forward rectified current:20A,Maximum recurrent peak reverse voltage:50V - Lead-Free / RoHS Compliant Electronics Component. - Low leakage and forward voltage drop;Low power loss, high efficiency. - Package Include: 20 Pcs x 20SQ050 Rectifier Diode ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08KDGBFTV | | Best Sellers Rank | #103,440 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #59 in Schottky Diodes | | Date First Available | September 29, 2020 | | Item Weight | 1.76 ounces | | Manufacturer | Tnisesm | | Package Dimensions | 3.19 x 1.61 x 0.75 inches | ## Images ![Tnisesm 20 Pcs 20SQ050 20A 50V Schottky Blocking Diode, Rectifiers Diode,Diode Axial Kit for Solar Panel - Image 1](https://m.media-amazon.com/images/I/51JWEFZgUOL.jpg) ![Tnisesm 20 Pcs 20SQ050 20A 50V Schottky Blocking Diode, Rectifiers Diode,Diode Axial Kit for Solar Panel - Image 2](https://m.media-amazon.com/images/I/518pEEyIA5L.jpg) ![Tnisesm 20 Pcs 20SQ050 20A 50V Schottky Blocking Diode, Rectifiers Diode,Diode Axial Kit for Solar Panel - Image 3](https://m.media-amazon.com/images/I/61kT-VIW3yL.jpg) ![Tnisesm 20 Pcs 20SQ050 20A 50V Schottky Blocking Diode, Rectifiers Diode,Diode Axial Kit for Solar Panel - Image 4](https://m.media-amazon.com/images/I/617WrWUzXbL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Keeping them handy in case of a lighting strike. *by H***K on April 6, 2023* I live off-grid in an Arched cabin that is solar powered. During the summer monsoon season, we can have some wicked lightning storms. My cabin has been hit once already. Fortunately, my solar panels were not damaged. When solar panels are hit by lightning, the most common failure is shorting of the internal Schottky blocking diodes inside the little black box on the back of the solar panel. I ordered these Tnisesm 20A, 50V Schottky diodes to keep on hand in case my panels should be damaged by a lightning strike in the future. Having spares on hand will allow me to get my solar array operational again with little down-time. I tested all 20 diodes with a transistor/diode tester. They all tested well within published tolerances. ### ⭐⭐⭐⭐⭐ Low forward biased voltage drop. *by U***O on February 22, 2024* Tested all 20 pieces with forward conduction and reverse block, as required. Forward voltage drop was between 100 and 192 millivolts when tested with diode test function on a multimeter. Germanium / Shottky type diodes usually 200mv (0.2v) or less per design. Silicon diodes are designed for a 700mv forward voltage drop when conducting. These will be used in a a12V automotive application to block reverse voltage from auxiliary circuits from back-powering existing circuits. Lighting and signaling circuits and relay control will not exceed published ratings. ### ⭐⭐⭐⭐⭐ Yes *by H***Y on August 27, 2024* Does what I needed it to do ## Frequently Bought Together - Tnisesm 20 Pcs 20SQ050 20A 50V Schottky Blocking Diode, Rectifiers Diode,Diode Axial Kit for Solar Panel - ALLECIN 25Pcs 20SQ050 Schottky Rectifier Diode 20A 50V Blocking Bypass Barrier Diodes 20 Amp 50 Volt Solar Axial Cell Panel Dioden R-6 Package --- ## 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.pl/products/260534443-tnisesm-20-pcs-20sq050-20a-50v-schottky-blocking-diode-rectifiers](https://www.desertcart.pl/products/260534443-tnisesm-20-pcs-20sq050-20a-50v-schottky-blocking-diode-rectifiers) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-09*