{"product_id":"pam8302-mono-2-5w-class-d-audio-amplifier-module-4-8-ohm-24db-gain-filterless","title":"PAM8302 Mono 2.5W Class D Audio Amplifier Module — 4Ω\/8Ω, 24dB Gain, Filterless","description":"\u003ch2\u003ePAM8302 Mono 2.5W Class D Audio Amplifier Module — 4Ω\/8Ω, 24dB Fixed Gain, Filterless\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003ePAM8302 amplifier module\u003c\/strong\u003e delivers \u003cstrong\u003e2.5W of mono Class D audio output\u003c\/strong\u003e in a compact, filterless design. With a fixed 24dB gain, 50dB PSRR, and built-in thermal and overcurrent protection, it is the ideal audio output stage for Arduino speaker projects, IoT voice alerts, Raspberry Pi audio, and portable sound devices powered by 2.5–5.5V supplies.\u003c\/p\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\u003eIC\u003c\/td\u003e\n\u003ctd\u003ePAM8302A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e2.5W (into 4Ω at 5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Impedance\u003c\/td\u003e\n\u003ctd\u003e4Ω or 8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain\u003c\/td\u003e\n\u003ctd\u003e24dB (fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePSRR\u003c\/td\u003e\n\u003ctd\u003e50dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.1% (at 1W, 1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;85% (Class D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilterless\u003c\/td\u003e\n\u003ctd\u003eYes (no LC output filter needed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eThermal shutdown, overcurrent (OCP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShutdown Pin\u003c\/td\u003e\n\u003ctd\u003eYes (active low)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003ePAM8302 vs PAM8403 — Which to Choose?\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003ePAM8302\u003c\/th\u003e\n\u003cth\u003ePAM8403\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003eMono (1 channel)\u003c\/td\u003e\n\u003ctd\u003eStereo (2 channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e2.5W × 1\u003c\/td\u003e\n\u003ctd\u003e3W × 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5V – 5.5V\u003c\/td\u003e\n\u003ctd\u003e2.5V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eSingle speaker, voice alerts, IoT\u003c\/td\u003e\n\u003ctd\u003eStereo speakers, music playback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose PAM8302?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFilterless Class D\u003c\/strong\u003e — no external LC filter required, minimal BOM\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e2.5–5.5V supply\u003c\/strong\u003e — runs directly from 3.3V or 5V microcontroller power rail\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e50dB PSRR\u003c\/strong\u003e — rejects power supply noise for clean audio output\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eShutdown pin\u003c\/strong\u003e — enable\/disable amplifier via GPIO for power saving\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eThermal + OCP protection\u003c\/strong\u003e — safe for continuous operation\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompact module\u003c\/strong\u003e — easy to integrate into small enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino speaker output for voice alerts and tones\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi audio amplifier for small speakers\u003c\/li\u003e\n\u003cli\u003eIoT device audio notification output\u003c\/li\u003e\n\u003cli\u003ePortable Bluetooth speaker build (mono)\u003c\/li\u003e\n\u003cli\u003eIntercom and doorbell audio stage\u003c\/li\u003e\n\u003cli\u003eWearable electronics audio output\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × PAM8302 Mono Class D Audio Amplifier Module\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991430942955,"sku":"\u003cnone\u003e","price":9.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/pam8302-mono-2-5w-class-d-audio-amplifier.webp?v=1761883307","url":"https:\/\/keszoox.com\/products\/pam8302-mono-2-5w-class-d-audio-amplifier-module-4-8-ohm-24db-gain-filterless","provider":"Keszoox","version":"1.0","type":"link"}