{"product_id":"fsfm300n","title":"FSFM300N","description":"\u003ch2\u003eFSFM300N - onsemi FPS™ Flyback Switching Regulator\u003c\/h2\u003e\u003cp\u003eThe FSFM300N is a high-performance 40W flyback switching regulator from onsemi's FPS™ (Fairchild Power Switch) series. This integrated offline switcher combines a 650V MOSFET with a current-mode PWM controller, delivering reliable AC-DC conversion for isolated power supply applications.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e40W Power Output:\u003c\/strong\u003e Suitable for medium-power offline applications including adapters, chargers, and auxiliary supplies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e650V High-Voltage MOSFET:\u003c\/strong\u003e Provides robust breakdown voltage margin for universal AC input designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Protection:\u003c\/strong\u003e Built-in current limiting, overload, over-temperature, and over-voltage protection ensures safe operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e67kHz Switching Frequency:\u003c\/strong\u003e Optimized for transformer size and efficiency trade-offs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Supply Range:\u003c\/strong\u003e 8V to 21V VCC operating range with 12V startup voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e77% Maximum Duty Cycle:\u003c\/strong\u003e Enables efficient energy transfer in flyback topology\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Meets environmental standards for lead-free manufacturing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAC-DC adapters and chargers\u003c\/li\u003e\n\u003cli\u003eAuxiliary power supplies for industrial equipment\u003c\/li\u003e\n\u003cli\u003eOffline SMPS (Switched-Mode Power Supplies)\u003c\/li\u003e\n\u003cli\u003eConsumer electronics power management\u003c\/li\u003e\n\u003cli\u003eTelecom and networking equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eComplete Technical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \t\u003ctd\u003eProduct attributes\u003c\/td\u003e \t\u003ctd\u003eProperty Value\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eManufacturer\u003c\/td\u003e \t\u003ctd\u003eonsemi\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003eFPS™\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003eTube | \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOutput Isolation\u003c\/td\u003e \t\u003ctd\u003eIsolated\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eInternal Switch(s)\u003c\/td\u003e \t\u003ctd\u003eYes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Breakdown\u003c\/td\u003e \t\u003ctd\u003e650V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eTopology\u003c\/td\u003e \t\u003ctd\u003eFlyback\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Start Up\u003c\/td\u003e \t\u003ctd\u003e12 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply (Vcc\/Vdd)\u003c\/td\u003e \t\u003ctd\u003e8V ~ 21V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eDuty Cycle\u003c\/td\u003e \t\u003ctd\u003e77%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eFrequency - Switching\u003c\/td\u003e \t\u003ctd\u003e67kHz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePower (Watts)\u003c\/td\u003e \t\u003ctd\u003e40 W\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eFault Protection\u003c\/td\u003e \t\u003ctd\u003eCurrent Limiting, Over Load, Over Temperature, Over Voltage\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eControl Features\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-25°C ~ 85°C (TA)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eGrade\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eQualification\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMounting Type\u003c\/td\u003e \t\u003ctd\u003eThrough Hole\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e8-DIP (0.300\", 7.62mm)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e8-DIP\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e   \u003ctd\u003eROHS\u003c\/td\u003e   \u003ctd\u003e\u003cimg class=\"ROSHICON\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/ROHSICON.png?v=1761919810\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose FSFM300N?\u003c\/h3\u003e\u003cp\u003eThe FSFM300N simplifies offline power supply design by integrating the high-voltage switch and control circuitry in a single package. This reduces component count, board space, and design complexity while maintaining high reliability through comprehensive protection features. The through-hole 8-DIP package ensures easy assembly and robust mechanical connection for industrial and commercial applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLong Lifecycle Support:\u003c\/strong\u003e As part of onsemi's FPS™ family, the FSFM300N benefits from the manufacturer's commitment to long-term availability and technical support, making it ideal for designs requiring extended product lifecycles.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eRelated Resources\u003c\/h3\u003e\u003cp\u003eExplore more \u003ca href=\"https:\/\/hqickey.com\/collections\/ac-dc-converters-offline-switchers\" title=\"AC DC Converters, Offline Switchers - Power Management ICs\"\u003eAC DC Converters, Offline Switchers\u003c\/a\u003e for your power supply design needs. Browse our complete catalog at \u003ca href=\"https:\/\/hqickey.com\/\" title=\"HQICKEY - Semiconductor Components \u0026amp; Programmable Logic\"\u003eHQICKEY\u003c\/a\u003e or visit our \u003ca href=\"https:\/\/hqickey.com\/blogs\/news\" title=\"Technical News \u0026amp; Application Notes\"\u003eTechnical Blog\u003c\/a\u003e for application notes, design guides, and industry insights.\u003c\/p\u003e","brand":"onsemi","offers":[{"title":"Default Title","offer_id":51117213909281,"sku":"FSFM300N","price":11.05,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_ACDCCOS_488_MKT-N08F_N_8_fe7aee37-dd36-4c61-b33e-f3704fbd830a.jpg?v=1743670276","url":"https:\/\/hqickey.com\/products\/fsfm300n","provider":"HQICKEY","version":"1.0","type":"link"}