{"product_id":"stk4272-sanyo-stereo-audio-amplifier-hybrid-ic-replacement","title":"STK4272 Sanyo AF Power Amplifier","description":"\u003ch3\u003eHigh-Fidelity 2-Channel Stereo Audio Power Amplifier Module\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSTK4272\u003c\/strong\u003e is a robust thick-film hybrid integrated circuit manufactured by Sanyo. Designed for use in high-quality stereo receivers and integrated amplifiers, this 15-pin module provides a stable, two-channel output optimized for 8Ω loads. It is a legendary component known for its reliable \"Series II\" performance and classic analog sound signature.\u003c\/p\u003e\n\n\u003cp\u003eThis module features an internal constant-current circuit to ensure high stability and minimize power-on \"thump,\" making it the ideal replacement part for restoring mid-range vintage Hi-Fi systems and bookshelf audio units to their original factory specifications.\u003c\/p\u003e\n\n\u003ch4\u003eKey Technical Features:\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 2-Channel Stereo (15-Pin HYB-15 Package).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistortion Performance:\u003c\/strong\u003e Standard 0.4% THD (Total Harmonic Distortion) for a warm, musical output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Advantage:\u003c\/strong\u003e Built on Sanyo's Insulated Metal Substrate Technology (IMST) for superior heat dissipation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e Full-range high-fidelity capability (20Hz to 50kHz).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Stability:\u003c\/strong\u003e Rated for high-temperature durability with a max substrate temperature of 125°C.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e Designed for split-power supply configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation \u0026amp; Technician's Notes:\u003c\/h4\u003e\n\u003cp\u003eThe STK4272 generates significant heat during audio playback and \u003cstrong\u003emust\u003c\/strong\u003e be securely mounted to a clean, flat heatsink using high-quality thermal silicone grease. Operating this module without a heatsink—even for a few seconds of functional testing—will result in immediate and permanent internal substrate failure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePro Tip: Before installation, check the output emitter resistors and verify that your power supply rails are symmetrical. Most STK failures are caused by external speaker shorts; ensure the speaker lines are clear before powering up the new module.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sanyo","offers":[{"title":"New","offer_id":48013256458394,"sku":"SC0008","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9477\/8778\/files\/15-STK4272_20Sanyo_20AF_20Power_20Amplifier.jpg?v=1778557047","url":"https:\/\/prellelectronics.com\/products\/stk4272-sanyo-stereo-audio-amplifier-hybrid-ic-replacement","provider":"Prell Electronics","version":"1.0","type":"link"}