{"product_id":"sg6841dz-sg6841d-dip8-lcd-power-supply-controller-ic-5pcs","title":"SG6841DZ \/ SG6841D \/ SG6841 DIP-8 LCD Power Supply Controller IC (5-Pack)","description":"\u003ch2\u003eSG6841DZ \/ SG6841D \/ SG6841 — DIP-8 LCD Power Supply Controller IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eSG6841\u003c\/strong\u003e is a \u003cstrong\u003equasi-resonant flyback PWM controller\u003c\/strong\u003e specifically designed for LCD monitor and TV power supply units. It integrates valley-switching detection, frequency jitter for EMI reduction, and built-in protections — making it the standard replacement IC for LCD SMPS repair. This listing provides \u003cstrong\u003e5 pieces\u003c\/strong\u003e in DIP-8 package — new and original.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Numbers\u003c\/td\u003e\n\u003ctd\u003eSG6841DZ \/ SG6841D \/ SG6841\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology\u003c\/td\u003e\n\u003ctd\u003eQuasi-Resonant Flyback (QR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (Vcc)\u003c\/td\u003e\n\u003ctd\u003e10V – 30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGate Drive Output\u003c\/td\u003e\n\u003ctd\u003e500mA peak (source\/sink)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003eVariable (QR valley switching)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Jitter\u003c\/td\u003e\n\u003ctd\u003eBuilt-in (±5% for EMI reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, OTP, SCP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoft Start\u003c\/td\u003e\n\u003ctd\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose SG6841DZ?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eQuasi-resonant operation\u003c\/strong\u003e — valley switching reduces switching losses and EMI\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBuilt-in frequency jitter\u003c\/strong\u003e — reduces EMI without external components\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eComprehensive protection\u003c\/strong\u003e — OVP, OCP, OTP, short-circuit protection\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e500mA gate drive\u003c\/strong\u003e — directly drives power MOSFETs without external driver\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNew \u0026amp; original\u003c\/strong\u003e — genuine SG6841 grade for reliable LCD PSU repair\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With \/ Works With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLCD monitor power supply boards (17–27\" panels)\u003c\/li\u003e  \u003cli\u003eLCD TV SMPS boards (32–42\" entry-level panels)\u003c\/li\u003e\n\u003cli\u003eFlyback transformer topologies with N-channel MOSFET switch\u003c\/li\u003e\n\u003cli\u003eCommon MOSFET replacements: 7N65, 8N65, 10N65 (TO-220)\u003c\/li\u003e\n\u003cli\u003eOptocoupler feedback: PC817 + TL431 secondary regulation\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD Monitor PSU Repair\u003c\/strong\u003e — replace failed SG6841 in 19–24\" monitor power boards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD TV Power Board\u003c\/strong\u003e — quasi-resonant flyback controller for 32–42\" TV SMPS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial SMPS Design\u003c\/strong\u003e — QR flyback for 12V\/5V\/3.3V multi-output supplies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Repair\u003c\/strong\u003e — replacement in laptop-style 19V flyback adapters\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between SG6841DZ and SG6841D?\u003c\/strong\u003e\u003cbr\u003eA: SG6841DZ is the RoHS-compliant (lead-free) variant. Electrically identical to SG6841D — direct drop-in replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I identify a failed SG6841 in an LCD PSU?\u003c\/strong\u003e\u003cbr\u003eA: Common symptoms: no power output, MOSFET not switching (check gate waveform), Vcc not reaching 15V startup threshold. Measure Vcc pin (pin 8) — if stuck at startup voltage (\u0026lt;10V), the IC or startup resistor may be faulty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can SG6841 replace OB2269, OB2263, or LD7552?\u003c\/strong\u003e\u003cbr\u003eA: These are functionally similar QR flyback controllers but have different pinouts. Direct substitution is not possible without PCB modification. Always verify pinout before replacing.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× SG6841DZ \/ SG6841D \/ SG6841 DIP-8 LCD Power Supply Controller IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991479111915,"sku":"\u003cnone\u003e","price":6.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/sg6841dz-sg6841d-sg6841-dip8-lcd-power-supply-controller-ic.webp?v=1761628275","url":"https:\/\/keszoox.com\/products\/sg6841dz-sg6841d-dip8-lcd-power-supply-controller-ic-5pcs","provider":"Keszoox","version":"1.0","type":"link"}