{"product_id":"stk4131ii-sanyo-stereo-amplifier-hybrid-ic-20w-20w","title":"STK4131II Sanyo AF Amplifier Module","description":"\u003ch3\u003eEfficient 2-Channel Stereo Audio Power Amplifier\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSTK4131II\u003c\/strong\u003e is a high-reliability thick-film hybrid integrated circuit from Sanyo. Designed for split power supply audio systems, this module provides a clean 20W + 20W stereo output, making it an essential component for restoring vintage receivers or powering high-quality desktop audio setups.\u003c\/p\u003e\n\n\u003cp\u003eAs a \"Series II\" module, it features an improved internal constant current circuit that ensures low harmonic distortion and a built-in muting circuit to prevent audible \"pops\" during power cycling.\u003c\/p\u003e\n\n\u003ch4\u003eKey Technical Features:\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous Power Output:\u003c\/strong\u003e 20W + 20W (at 8Ω, THD = 0.3%)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 2-Channel Stereo (18-Pin SIP Package)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Bandwidth:\u003c\/strong\u003e High-end response up to 50kHz.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e Recommended ±23V (Maximum ±34.5V).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Technology:\u003c\/strong\u003e Uses Sanyo’s IMST (Insulated Metal Substrate Technology) for superior heat dissipation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Requirements:\u003c\/h4\u003e\n\u003cp\u003eThis IC \u003cstrong\u003erequires\u003c\/strong\u003e a substantial heatsink and high-quality thermal grease for safe operation. Ensure that the mounting surface is completely flat to allow for maximum thermal contact and to prevent premature failure of the internal transistors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eCheck your power supply rail voltage and capacitor health before installing the replacement IC to ensure a long-lasting repair.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sanyo","offers":[{"title":"New","offer_id":48006073876634,"sku":"SC0007","price":21.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9477\/8778\/files\/5-_20STK4131II_20Sanyo_20AF_20Amplifier_20Module.jpg?v=1778389383","url":"https:\/\/prellelectronics.com\/products\/stk4131ii-sanyo-stereo-amplifier-hybrid-ic-20w-20w","provider":"Prell Electronics","version":"1.0","type":"link"}