{"product_id":"stk4432-sanyo-stereo-amplifier-hybrid-ic-25w-25w","title":"STK4432 Sanyo AF Power Amplifier","description":"\u003ch3\u003ePowerful 25W+25W Stereo Audio Power Amplifier Module\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSTK4432\u003c\/strong\u003e is a high-performance thick-film hybrid integrated circuit from Sanyo's dependable audio lineup. Delivering a continuous \u003cstrong\u003e25 Watts per channel\u003c\/strong\u003e, this 15-pin module is the ideal power stage for mid-sized stereo receivers, integrated amplifiers, and premium active speaker systems. It is renowned for its excellent cost-performance and rugged thermal stability.\u003c\/p\u003e\n\n\u003cp\u003eDesigned to be pin-compatible with the STK430 series, the STK4432 allows for easy integration and repair of vintage hardware. It provides a crisp, analog sound signature with a Total Harmonic Distortion (THD) of 1.0% at full rated power and an impressive frequency response reaching up to 100kHz.\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 25W + 25W (at 8Ω, f = 1kHz, THD = 1.0%).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 2-Channel Stereo in a 15-Pin SIP (Single In-line Package).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e Ultra-wide bandwidth from 20Hz to 100kHz (+0, -3dB).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Reliability:\u003c\/strong\u003e Guaranteed operation up to 125°C substrate temperature for extended life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Distortion:\u003c\/strong\u003e Typically 0.3% THD at low output (0.1W) for clear, detailed listening.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e Recommended supply of 49V DC (Absolute Maximum 70V).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation \u0026amp; Safety Guide:\u003c\/h4\u003e\n\u003cp\u003eAs a 50W total output module, the STK4432 generates significant heat. It \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 five-second diagnostic check—will cause immediate and permanent internal substrate failure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eTechnician's Note: Before installation, verify that the power supply voltage is stable (ideally near 49V) and discharge all filter capacitors. We recommend checking the output coupling capacitors, as dried-out electrolytic caps in vintage gear are the primary cause of module stress and audio clipping.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sanyo","offers":[{"title":"New","offer_id":48013257310362,"sku":"SC0008","price":21.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9477\/8778\/files\/24-STK4432_20Sanyo_20AF_20Power_20Amplifier.jpg?v=1778557079","url":"https:\/\/prellelectronics.com\/products\/stk4432-sanyo-stereo-amplifier-hybrid-ic-25w-25w","provider":"Prell Electronics","version":"1.0","type":"link"}