{"id":2022,"date":"2025-07-10T07:47:11","date_gmt":"2025-07-10T07:47:11","guid":{"rendered":"https:\/\/www.lauramak.com\/?post_type=product&#038;p=2022"},"modified":"2025-07-10T07:50:26","modified_gmt":"2025-07-10T07:50:26","slug":"small-low-voltage-toroidal-transformer","status":"publish","type":"product","link":"https:\/\/www.lauramak.com\/kk\/product\/small-low-voltage-toroidal-transformer\/","title":{"rendered":"SDK Small Low Voltage Toroidal Transformer"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Key Benefits &amp; Features<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Compact, Space\u2011Saving Design<\/strong><br>The low\u2011profile, pancake\u2011style core and winding result in a significantly smaller footprint versus EI\u2011type transformers\u2014ideal when PCB or chassis space is limited.<\/li>\n\n\n\n<li><strong>High Efficiency &amp; Low Loss<\/strong><br>Toroidal cores minimize hysteresis and eddy\u2011current losses. Expect >\u202f95% efficiency, reducing heat generation and energy costs in continuous\u2011use applications.<\/li>\n\n\n\n<li><strong>Quiet Operation<\/strong><br>Precise winding and low\u2011flux leakage ensure virtually silent performance (&lt;\u202f30\u202fdB), making these <strong>low voltage transformers<\/strong> perfect for noise\u2011sensitive environments like audio studios and medical labs.<\/li>\n\n\n\n<li><strong>Superior Voltage Regulation<\/strong><br>Tight regulation (\u00b1\u202f2% at full load) keeps output voltage steady under varying load conditions, protecting sensitive circuits from dips and surges.<\/li>\n\n\n\n<li><strong>Robust Construction &amp; Safety<\/strong>\n<ul class=\"wp-block-list\">\n<li>Class B or F insulation options for thermal stability up to 130\u202f\u00b0C<\/li>\n\n\n\n<li>Encapsulated winding for moisture and vibration resistance<\/li>\n\n\n\n<li>UL\/Listable materials and CE safety approvals available<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Customizable Configurations<\/strong>\n<ul class=\"wp-block-list\">\n<li>Input voltages: 110\u202fVAC \/ 115\u202fVAC \/ 230\u202fVAC (50\/60\u202fHz)<\/li>\n\n\n\n<li>Output voltages: 12\u202fVAC to 48\u202fVAC (dual or multiple secondaries)<\/li>\n\n\n\n<li>VA ratings: 50\u202fVA, 100\u202fVA, 150\u202fVA, 200\u202fVA, up to 500\u202fVA<\/li>\n\n\n\n<li>Mounting: PCB\u2011mount, chassis\u2011mount, or bracket options<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Technical Parameters<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Capacity<\/td><td>SDK-500VA up to 3000VA<\/td><\/tr><tr><td>Switch<\/td><td>One button switch, convenient and fast.<\/td><\/tr><tr><td>Power Indicator Light<\/td><td>It can better know whether the machine is operating normally.<\/td><\/tr><tr><td>Input voltage<\/td><td>110\/120\/220\/240V<\/td><\/tr><tr><td>Output&nbsp;voltage<\/td><td>Other countries use the 110v output. In China, it uses the 220v output.<\/td><\/tr><tr><td>Rated frequency<\/td><td>50\/60Hz<\/td><\/tr><tr><td>Voltage change rate<\/td><td>\u22641.5%<\/td><\/tr><tr><td>Working efficiency<\/td><td>\u226598%<\/td><\/tr><tr><td>Heat Dissipation<\/td><td>It has a large heat dissipation area, high efficiency heat dissipation, and is safe and stable.<\/td><\/tr><tr><td>Portable<\/td><td>It is easy to carry and safe and sturdy.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"2\">Productmodel<\/td><td>Input voltage<\/td><td>Output voltage<\/td><td>(mm)xxLxWxH<\/td><\/tr><tr><td rowspan=\"3\">Domestic version<\/td><td>SDK-500VA<\/td><td rowspan=\"3\">220V<\/td><td rowspan=\"3\">100V 110V<\/td><td rowspan=\"6\">185*75*240<\/td><\/tr><tr><td>SDK-1000VA<\/td><\/tr><tr><td>SDK-2000VA<\/td><\/tr><tr><td rowspan=\"3\">Overseas<\/td><td>SDK-500VA<\/td><td rowspan=\"3\">110V<\/td><td rowspan=\"3\">220V<\/td><\/tr><tr><td>SDK-1000VA<\/td><\/tr><tr><td>SDK-2000VA<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/07\/Voltage-Converters-Suit-for-Rice-Cookers-and-Other-Kitchen-Appliances.webp\" alt=\"Voltage Converters Suit for Rice Cookers and Other Kitchen Appliances\" class=\"wp-image-2026\" srcset=\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/07\/Voltage-Converters-Suit-for-Rice-Cookers-and-Other-Kitchen-Appliances.webp 600w, https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/07\/Voltage-Converters-Suit-for-Rice-Cookers-and-Other-Kitchen-Appliances-300x300.webp 300w, https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/07\/Voltage-Converters-Suit-for-Rice-Cookers-and-Other-Kitchen-Appliances-150x150.webp 150w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Typical Applications<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Audio Amplifiers &amp; Hi\u2011Fi Equipment<\/strong><br>Deliver clean, stable power for low\u2011noise audio reproduction.<\/li>\n\n\n\n<li><strong>Medical Devices &amp; Laboratory Instruments<\/strong><br>Comply with strict safety and EMI requirements.<\/li>\n\n\n\n<li><strong>Industrial Control &amp; Automation<\/strong><br>Provide reliable power for sensors, PLCs, and control circuits.<\/li>\n\n\n\n<li><strong>LED Lighting &amp; Display Systems<\/strong><br>Ensure flicker\u2011free operation and long LED life.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Why Choose ZHENGXI as Your Toroidal Transformer Supplier?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Expertise &amp; Quality<\/strong>: Over 30\u202fyears specializing in transformer design and manufacturing.<\/li>\n\n\n\n<li><strong>Global Certifications<\/strong>: CE, UL, RoHS compliance ensures safe, market\u2011ready products.<\/li>\n\n\n\n<li><strong>Fast Prototyping &amp; OEM Service<\/strong>: Rapid turnaround on custom designs and private\u2011label orders.<\/li>\n\n\n\n<li><strong>Competitive Pricing<\/strong>: Direct\u2011factory pricing for cost\u2011sensitive projects without quality compromise.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<p><strong>Q1: What makes a small toroidal transformer better than an EI\u2011core transformer?<\/strong><br>A1: Toroidal transformers offer higher efficiency, smaller size, lighter weight, low noise, and tighter voltage regulation compared to traditional EI\u2011core types\u2014making them ideal for precision and space\u2011constrained applications.<\/p>\n\n\n\n<p><strong>Q2: Can you customize the output voltage and mounting style?<\/strong><br>A2: Yes. We provide custom windings for virtually any secondary voltage (single or multiple), and you can choose PCB\u2011mount, bracket, or chassis\u2011mount configurations to suit your assembly needs.<\/p>\n\n\n\n<p><strong>Q3: How do I select the correct VA rating for my application?<\/strong><br>A3: Calculate the total load current (in amps) required by your devices at the intended output voltage, then multiply by that voltage to get VA. Add a 20\u201330% safety margin to accommodate inrush currents\u2014e.g., a 2\u202fA, 24\u202fVAC load needs at least 48\u202fVA; choose a 100\u202fVA model.<\/p>","protected":false},"excerpt":{"rendered":"<p>Key Benefits &amp; Features Technical Parameters Capacity SDK-500VA up to 3000VA Switch One button switch, convenient and fast. Power Indicator Light It can better know whether the machine is operating normally. Input voltage 110\/120\/220\/240V Output&nbsp;voltage Other countries use the 110v output. In China, it uses the 220v output. Rated frequency 50\/60Hz Voltage change rate \u22641.5% [&hellip;]<\/p>","protected":false},"featured_media":2028,"parent":0,"menu_order":0,"template":"","tags":[],"product-categories":[58],"class_list":["post-2022","product","type-product","status-publish","has-post-thumbnail","hentry","product-categories-low-voltage-transformer"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Small Low Voltage Toroidal Transformer Supplier - SUNWAY<\/title>\n<meta name=\"description\" content=\"Elevate your designs with ZHENGXI\u2019s small low voltage toroidal transformers\u2014where performance, reliability, and efficiency converge. 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