{"product_id":"hxj8002-3w-mono-btl-audio-amplifier-board-module-2v-5v","title":"HXJ8002 3W Mono BTL Audio Amplifier Board Module 2.0–5.5V","description":"\u003ch2\u003eHXJ8002 Mini Audio Power Amplifier Board – 3W Mono Channel BTL\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY audio projects with the compact \u003cstrong\u003eHXJ8002 Audio Power Amplifier Board Module\u003c\/strong\u003e. Delivering \u003cstrong\u003e3 Watts of mono BTL output\u003c\/strong\u003e with a wide supply voltage range of \u003cstrong\u003e2.0V to 5.5V\u003c\/strong\u003e, this tiny SMD board punches well above its size. Whether you're building a portable speaker, a desktop computer audio system, or an embedded electronics project, this module provides clean, stable amplification with an ultra-low noise floor.\u003c\/p\u003e\n\n\u003cp\u003eThe HXJ8002 IC is engineered for low-voltage, high-efficiency applications — making it ideal for battery-powered gadgets and microcontroller-based builds alike. Its BTL (Bridge-Tied Load) topology maximises output power from a single supply, giving your speaker the drive it needs without a bulky power stage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 3W Mono Channel (BTL configuration)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 2.0V – 5.5V (compatible with 3.3V \u0026amp; 5V systems)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e HXJ8002 — low-noise, high-efficiency audio amplifier IC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SMD (Surface Mount Device) — compact form factor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +85°C — wide industrial range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow EMI \u0026amp; Minimal Signal Noise\u003c\/strong\u003e — clean audio output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo high-concern chemicals\u003c\/strong\u003e (RoHS-friendly)\u003c\/li\u003e\n  \u003cli\u003eSuitable for computers, portable speakers, DIY audio \u0026amp; embedded systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIC Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHXJ8002\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMono (1 Channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3W (BTL)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.0V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSMD\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Module\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × HXJ8002 3W Mono BTL Audio Amplifier Board Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino \/ Raspberry Pi speaker projects\u003c\/li\u003e\n  \u003cli\u003ePortable Bluetooth speaker builds\u003c\/li\u003e\n  \u003cli\u003eComputer desktop audio\u003c\/li\u003e\n  \u003cli\u003eLow-voltage embedded audio systems\u003c\/li\u003e\n  \u003cli\u003eElectronics hobbyists \u0026amp; makers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage does the HXJ8002 amplifier board support?\u003c\/h4\u003e\n\u003cp\u003eA: The HXJ8002 audio amplifier board module operates on a supply voltage of \u003cstrong\u003e2.0V to 5.5V\u003c\/strong\u003e, making it fully compatible with standard 3.3V and 5V microcontroller platforms such as Arduino and Raspberry Pi.\u003c\/p\u003e\n\u003ch4\u003eQ: What is BTL configuration and why does it matter?\u003c\/h4\u003e\n\u003cp\u003eA: BTL stands for \u003cstrong\u003eBridge-Tied Load\u003c\/strong\u003e. This topology connects the speaker between two output pins driven in opposite phase, effectively doubling the voltage swing across the load. The result is up to 4× the output power compared to a single-ended design at the same supply voltage — giving you a full \u003cstrong\u003e3W mono output\u003c\/strong\u003e from a compact low-voltage board.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this board suitable for beginners and DIY makers?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The HXJ8002 amplifier module is designed with simplicity in mind. Its compact SMD form factor integrates easily into breadboard or PCB-based projects, and minimal external components are required to get it running with a speaker.\u003c\/p\u003e\n\u003ch4\u003eQ: What kind of speaker can I connect to this amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: The HXJ8002 BTL amplifier board is designed to drive a \u003cstrong\u003emono speaker\u003c\/strong\u003e (typically 4Ω or 8Ω). It is ideal for small to medium portable speakers and embedded audio output applications.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage does the HXJ8002 amplifier board support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The HXJ8002 audio amplifier board module operates on a supply voltage of 2.0V to 5.5V, making it fully compatible with standard 3.3V and 5V microcontroller platforms such as Arduino and Raspberry Pi.\"}}, {\"@type\": \"Question\", \"name\": \"What is BTL configuration and why does it matter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"BTL stands for Bridge-Tied Load. This topology connects the speaker between two output pins driven in opposite phase, effectively doubling the voltage swing across the load. 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It is ideal for small to medium portable speakers and embedded audio output applications.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"HXJ8002 3W Mono BTL Audio Amplifier Board Module 2.0–5.5V\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/hxj8002-3w-mono-btl-audio-amplifier-board-module-2v-5v\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"Default Title","offer_id":44167381942359,"sku":"\u003cnone\u003e","price":6.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S04e1ec43e53f47cfa4811e781263969aO.webp?v=1786761635","url":"https:\/\/axlcustomersupport.com\/products\/hxj8002-3w-mono-btl-audio-amplifier-board-module-2v-5v","provider":"Axl","version":"1.0","type":"link"}