{"product_id":"mdq-single-phase-rectifier-bridge-diode-module-1600v","title":"MDQ Single-Phase Rectifier Bridge Diode Module 30A–500A 1600V","description":"\n\u003ch2\u003eMDQ Single-Phase Rectifier Bridge Diode Module — Up to 500A \/ 1600V\u003c\/h2\u003e\n\u003cp\u003eThe MDQ series single-phase rectifier bridge module is a high-performance power electronics component engineered for demanding DC conversion applications. Available in a wide range of current ratings — 30A, 40A, 50A, 75A, 100A, 150A, 200A, 250A, 300A, and 500A — with a maximum forward\/reverse voltage of 1600V, this module delivers reliable and efficient AC-to-DC rectification for industrial, commercial, and DIY power supply projects.\u003c\/p\u003e\n\n\u003cp\u003eCompatible with 220V AC input and rated for 12V DC output configurations, the MDQ module integrates seamlessly into motor drives, battery chargers, welding equipment, UPS systems, and general-purpose power supplies. Its compact form factor and industry-standard mounting footprint make installation and heat sink configuration straightforward.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Single-Phase Rectifier Bridge (Rectifier Diode Module)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MDQ100A1600V (and variants: 30A, 40A, 50A, 75A, 150A, 200A, 250A, 300A, 500A)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Forward Current:\u003c\/strong\u003e Up to 500A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Reverse Current:\u003c\/strong\u003e Up to 500A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Forward Voltage:\u003c\/strong\u003e 1600V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Reverse Voltage:\u003c\/strong\u003e 1600V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 220V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e DC 12V compatible\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomization:\u003c\/strong\u003e Available — contact customer service for bulk or custom orders\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⚠️ Important Selection Guidelines\u003c\/h3\u003e\n\u003ch4\u003e1. Current Rating Selection\u003c\/h4\u003e\n\u003cp style=\"color:#0062b1;\"\u003eThe marked current of the module is the average on-state value, \u003cstrong\u003enot\u003c\/strong\u003e the long-term effective operating value. Always leave sufficient margin based on your actual working environment:\u003c\/p\u003e\n\u003cul style=\"color:#0062b1;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResistive Load:\u003c\/strong\u003e Apply a 2–2.5× margin — Actual Current (A) × 2 to 2.5 = Module Nominal Current (A)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInductive Load:\u003c\/strong\u003e Apply a 6–7× margin — Actual Current (A) × 6 to 7 = Module Nominal Current (A)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e2. Heat Sink Configuration\u003c\/h4\u003e\n\u003cp style=\"color:#0062b1;\"\u003eWhen the actual working current exceeds 5A, a suitable heat sink \u003cstrong\u003emust\u003c\/strong\u003e be configured for safe and reliable operation. Failure to use an adequate heat sink may result in thermal damage to the module.\u003c\/p\u003e\n\n\u003ch4\u003e3. Stock \u0026amp; Bulk Orders\u003c\/h4\u003e\n\u003cp style=\"color:#0062b1;\"\u003eStandard models are in stock and available for immediate dispatch. For bulk orders, please contact customer service to confirm quantities and lead times before placing your order.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the MDQ Rectifier Bridge Module?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ Wide current range selection — find the exact rating for your application\u003c\/li\u003e\n  \u003cli\u003e✅ High voltage rating (1600V) for demanding industrial environments\u003c\/li\u003e\n  \u003cli\u003e✅ Compact, industry-standard module format for easy PCB or panel integration\u003c\/li\u003e\n  \u003cli\u003e✅ Compatible with heat sink mounting for extended operational life\u003c\/li\u003e\n  \u003cli\u003e✅ Customization available for OEM or special-specification requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial motor drives and variable frequency drives (VFDs)\u003c\/li\u003e\n  \u003cli\u003eBattery chargers and UPS (Uninterruptible Power Supply) systems\u003c\/li\u003e\n  \u003cli\u003eWelding machines and plasma cutters\u003c\/li\u003e\n  \u003cli\u003eGeneral-purpose AC-to-DC power supplies\u003c\/li\u003e\n  \u003cli\u003eElectroplating and electrolysis equipment\u003c\/li\u003e\n  \u003cli\u003eDC bus power conversion systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor authoritative guidance on power electronics safety and electrical component standards, refer to \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA's Electrical Safety 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 MDQ single-phase rectifier bridge module?\u003c\/h4\u003e\n\u003cp\u003eA: The MDQ series is available in multiple current ratings including 30A, 40A, 50A, 75A, 100A, 150A, 200A, 250A, 300A, and 500A, all at a maximum voltage of 1600V. Choose the rating based on your application's load type and apply the appropriate derating margin.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need a heat sink with the MDQ rectifier bridge module?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. When your actual operating current exceeds 5A, a compatible heat sink is required. Operating the module without adequate thermal management at higher currents can cause overheating and reduce the component's service life. Heat sinks compatible with the MDQ module footprint are available separately.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I select the correct MDQ module current rating for my application?\u003c\/h4\u003e\n\u003cp\u003eA: For resistive loads, multiply your actual operating current by 2 to 2.5 to determine the required module nominal current. For inductive loads (motors, transformers, solenoids), multiply your actual operating current by 6 to 7. This derating ensures reliable long-term operation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the MDQ100A1600V rectifier module compatible with 220V AC input?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The MDQ series is designed for use with 220V AC single-phase input, converting it to DC output — suitable for 12V DC bus and other DC power supply configurations depending on your circuit design.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I order the MDQ rectifier bridge module in bulk or with custom specifications?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Regular models are in stock and available for direct purchase. For bulk orders or custom specifications, please contact customer service in advance to confirm availability, lead times, and pricing.\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 MDQ single-phase rectifier bridge module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The MDQ series is available in multiple current ratings including 30A, 40A, 50A, 75A, 100A, 150A, 200A, 250A, 300A, and 500A, all at a maximum voltage of 1600V. Choose the rating based on your application's load type and apply the appropriate derating margin.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need a heat sink with the MDQ rectifier bridge module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. When your actual operating current exceeds 5A, a compatible heat sink is required. 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