{"product_id":"mur480-ultrafast-recovery-diode-4a-800v","title":"MUR480 Ultrafast Recovery Diode (4A 800V)","description":"\u003ch5\u003eOverview \u0026amp; Features\u003c\/h5\u003e\n\u003cp\u003eWhen designing high-voltage, high-frequency power circuits, minimizing switching losses is critical for overall efficiency. The \u003cstrong\u003eMUR480 Ultrafast Recovery Diode (4A 800V)\u003c\/strong\u003e is specifically engineered for applications that require rapid switching speeds, boasting incredibly low reverse recovery times compared to standard rectifiers.\u003c\/p\u003e\n\n\u003cp\u003eAvailable at Tomson Electronics, this rugged DO-201AD axial diode is capable of handling up to 4 Amps of continuous forward current and a massive 800 Volts of peak reverse voltage. It is highly favored in the design of switch-mode power supplies (SMPS), high-frequency inverters, and uninterruptible power supplies (UPS). Its ability to rapidly switch states prevents excessive heat buildup, ensuring your power electronics run cooler and more reliably.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlso searched as:\u003c\/strong\u003e MUR480E diode, 4A 800V ultrafast rectifier, fast recovery power diode, DO-201AD high voltage diode.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch5\u003eTechnical Specifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e MUR480 \/ MUR480E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiode Type:\u003c\/strong\u003e Ultrafast Recovery Power Rectifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Forward Current (If):\u003c\/strong\u003e 4.0A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak Repetitive Reverse Voltage (Vrrm):\u003c\/strong\u003e 800V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Forward Voltage (Vf):\u003c\/strong\u003e ~1.28V to 1.5V (at 4A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse Recovery Time (trr):\u003c\/strong\u003e Ultra-fast (typically around 50ns to 75ns)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e DO-201AD (Axial Lead \/ Through-Hole)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Junction Temperature:\u003c\/strong\u003e -65°C to +175°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eCommon Applications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch-Mode Power Supplies (SMPS):\u003c\/strong\u003e Providing highly efficient rectification in high-frequency AC-to-DC converters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Inverters \u0026amp; UPS:\u003c\/strong\u003e Handling high-voltage switching in uninterruptible power supplies and solar inverters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreewheeling \/ Snubber Circuits:\u003c\/strong\u003e Clamping severe voltage spikes from high-voltage inductive loads like large motors and transformers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePFC Circuits:\u003c\/strong\u003e Used in Power Factor Correction circuits due to its fast switching and high voltage tolerance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eFrequently Asked Questions\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between this MUR480 and a standard 1N5408?\u003c\/strong\u003e\u003cbr\u003e\nA: While both can handle similar current (3A\/4A) and high voltages, a standard 1N5408 is a \"slow\" general-purpose rectifier meant for 50Hz\/60Hz AC mains. If you use a 1N5408 in a high-frequency circuit (like a 50kHz SMPS), it will overheat and fail. The MUR480 is an \u003cem\u003eultrafast\u003c\/em\u003e diode designed specifically to switch on and off at those high frequencies without wasting energy as heat.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I identify the polarity of this diode?\u003c\/strong\u003e\u003cbr\u003e\nA: The diode has a silver band printed on one end of the black cylindrical body. This silver band indicates the Cathode (Negative) terminal. Conventional current flows from the unbanded end (Anode) toward the banded end.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use an 800V diode in a low voltage (e.g., 24V or 48V) circuit?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The 800V rating simply indicates the maximum reverse voltage the diode can block before failing. It is perfectly safe to use it in lower voltage circuits, though the forward voltage drop (around 1.3V) is slightly higher than a low-voltage Schottky diode.\u003c\/p\u003e\n\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca title=\"MUR480E Diode Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2132\/9029\/files\/MUR480E_D-2316169.pdf?v=1787916363\" target=\"_blank\"\u003eMUR480 \/ MUR480E Technical Datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003ePackage Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 × MUR480 Ultrafast Recovery Diode (4A 800V)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TOMSON ELECTRONICS","offers":[{"title":"Default Title","offer_id":49510262636782,"sku":"DIO-00869","price":100.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2132\/9029\/files\/MUR480DIODE.jpg?v=1787918577","url":"https:\/\/www.tomsonelectronics.com\/products\/mur480-ultrafast-recovery-diode-4a-800v","provider":"Tomson Electronics ","version":"1.0","type":"link"}