{"product_id":"solar-pv-rectifier-diode-mdk-m353-200a-400a-1600v-anti-backflow","title":"MDK Solar PV Rectifier Diode 200A–400A 1600V Anti-Backflow M353","description":"\n\u003ch2\u003eSolar PV Module MDK Rectifier Diode — 200A to 400A, 1600V\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMDK Solar Photovoltaic Module Rectifier Diode (M353)\u003c\/strong\u003e is a high-performance rectifier diode engineered for solar photovoltaic systems. Available in current ratings of \u003cstrong\u003e200A, 250A, 300A, 350A, and 400A\u003c\/strong\u003e with a maximum voltage rating of \u003cstrong\u003e1600V\u003c\/strong\u003e, this module delivers robust protection against backflow, back-charge, and reverse current — keeping your PV system running safely and efficiently. Customization is available to meet your specific project requirements.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Current Range:\u003c\/strong\u003e Available in 200A, 250A, 300A, 350A, and 400A configurations to suit a variety of solar installations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Voltage Rating:\u003c\/strong\u003e Maximum forward and reverse voltage of 1600V for demanding photovoltaic environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-Backflow Protection:\u003c\/strong\u003e Built-in diode design prevents reverse current, back-charge, and backflow — protecting your panels and charge controller.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRectifier Diode Type:\u003c\/strong\u003e Industrial-grade rectifier diode for reliable, long-term solar energy conversion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Custom configurations available — contact our team for bulk orders or special requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNew Condition:\u003c\/strong\u003e Shipped brand new, ready for immediate installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Free from hazardous or restricted substances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMDK M353\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Ratings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200A \/ 250A \/ 300A \/ 350A \/ 400A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Forward Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Forward Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1600V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Reverse Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Reverse Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1600V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e220V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRectifier Diode\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCustomized\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eImportant Selection \u0026amp; Usage Notes\u003c\/h3\u003e\n\u003ch4\u003e1. Current Rating Selection\u003c\/h4\u003e\n\u003cp\u003eThe rated current of this power module represents the average on-state value — \u003cstrong\u003enot\u003c\/strong\u003e the long-term effective operating value. Always leave adequate margin based on your actual working environment:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResistive loads:\u003c\/strong\u003e Actual current (A) × 2 to 2.5 = Module nominal current (A)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInductive loads:\u003c\/strong\u003e Actual current (A) × 6 to 7 = Module nominal current (A)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e2. Heat Sink Requirement\u003c\/h4\u003e\n\u003cp\u003eWhen the actual working current exceeds \u003cstrong\u003e5A\u003c\/strong\u003e, a compatible heat sink must be installed to ensure safe and stable operation. Please size and configure your heat sink appropriately for your application.\u003c\/p\u003e\n\u003ch4\u003e3. Stock \u0026amp; Bulk Orders\u003c\/h4\u003e\n\u003cp\u003eStandard models are available in stock and ready to ship. For bulk or large-quantity orders, please contact our customer service team to confirm quantities and delivery timelines.\u003c\/p\u003e\n\n\u003ch3\u003eLearn More About Solar Energy Safety\u003c\/h3\u003e\n\u003cp\u003eFor guidance on safe solar photovoltaic system installation and electrical standards, visit the \u003ca href=\"https:\/\/www.energy.gov\/eere\/solar\/homeowners-guide-going-solar\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Department of Energy — Solar Energy Resources\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What current ratings are available for the MDK M353 Solar Rectifier Diode?\u003c\/h4\u003e\n\u003cp\u003eA: The MDK M353 is available in five current ratings: 200A, 250A, 300A, 350A, and 400A — all supporting a maximum voltage of 1600V. Select the rating that best fits your solar PV system's load requirements, remembering to apply the appropriate safety margin for resistive or inductive loads.\u003c\/p\u003e\n\u003ch4\u003eQ: Why does this rectifier diode need anti-backflow protection?\u003c\/h4\u003e\n\u003cp\u003eA: In solar photovoltaic systems, current can sometimes flow in reverse — back through the panels or charge controller — especially at night or during shading events. The MDK M353's anti-backflow, anti-back-charge, and anti-reverse-current diode design prevents this, protecting your solar modules and associated equipment from damage caused by reverse current.\u003c\/p\u003e\n\u003ch4\u003eQ: Is a heat sink required with this module?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. When the actual operating current exceeds 5A, a suitable heat sink must be used to dissipate heat effectively and maintain safe, stable performance. Failure to install a heat sink at higher currents may reduce the lifespan or performance of the module.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I order a custom configuration or buy in bulk?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, custom configurations are supported. Standard models are available in stock for immediate purchase. For bulk orders, please reach out to our customer service team to confirm your required quantity and arrange an appropriate delivery schedule.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What current ratings are available for the MDK M353 Solar Rectifier Diode?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The MDK M353 is available in five current ratings: 200A, 250A, 300A, 350A, and 400A — all supporting a maximum voltage of 1600V. 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