{"product_id":"2sd1047-2sb817-audio-amplifier-transistors-5pcs-to-3p","title":"2SD1047 \u0026 2SB817 Audio Amplifier Transistors 5pcs TO-3P","description":"\u003ch2\u003e2SD1047 \u0026amp; 2SB817 Complementary Audio Amplifier Transistors — 5-Piece Set\u003c\/h2\u003e\n\u003cp\u003eUpgrade your audio amplifier builds with this genuine 5-piece set of complementary power transistors — the \u003cstrong\u003e2SD1047 (D1047)\u003c\/strong\u003e NPN and \u003cstrong\u003e2SB817 (B817)\u003c\/strong\u003e PNP pair. These classic TO-3P package transistors are widely used in high-fidelity audio amplifier output stages, delivering stable performance and reliable switching characteristics for both DIY and professional electronic projects.\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\u003eComplementary Pair:\u003c\/strong\u003e NPN 2SD1047 and PNP 2SB817 transistors in one set — ideal for push-pull amplifier output stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTO-3P Package:\u003c\/strong\u003e Industry-standard package for easy PCB mounting and heatsink compatibility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio Amplifier Grade:\u003c\/strong\u003e Designed for use in integrated circuits and high-power audio output applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNew \u0026amp; Authentic:\u003c\/strong\u003e Each transistor is brand new and genuine, free from high-concern chemicals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5-Piece Pack:\u003c\/strong\u003e Includes multiple units — great for repairs, replacements, or new circuit builds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Suitable for voltage regulation, switching, and audio amplification circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Numbers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2SD1047 (D1047) \/ 2SB817 (B817)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTO-3P\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntegrated circuit \/ Audio amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransistor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNPN (D1047) \/ PNP (B817)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNioCen\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\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 Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e5 x Transistors (mix of 2SD1047 \/ 2SB817 — complementary pair set)\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\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between the 2SD1047 and 2SB817 transistors?\u003c\/h4\u003e\n\u003cp\u003eA: The 2SD1047 (D1047) is an NPN power transistor, while the 2SB817 (B817) is its PNP complementary counterpart. Together they form a matched complementary pair commonly used in push-pull audio amplifier output stages for balanced and efficient signal amplification.\u003c\/p\u003e\n\u003ch4\u003eQ: What package type are these transistors?\u003c\/h4\u003e\n\u003cp\u003eA: Both the 2SD1047 and 2SB817 come in the TO-3P package, which is an industry-standard through-hole package that allows secure PCB mounting and easy attachment to a heatsink for thermal management in high-power applications.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these suitable for DIY audio amplifier projects?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — these are a popular choice for DIY and hobbyist audio amplifier builds, as well as for repairing existing amplifier circuits. The complementary NPN\/PNP pairing makes them ideal for class AB output stages in stereo and mono amplifier designs.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the 2SD1047 and 2SB817 transistors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 2SD1047 (D1047) is an NPN power transistor, while the 2SB817 (B817) is its PNP complementary counterpart. Together they form a matched complementary pair commonly used in push-pull audio amplifier output stages for balanced and efficient signal amplification.\"}}, {\"@type\": \"Question\", \"name\": \"What package type are these transistors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Both the 2SD1047 and 2SB817 come in the TO-3P package, which is an industry-standard through-hole package that allows secure PCB mounting and easy attachment to a heatsink for thermal management in high-power applications.\"}}, {\"@type\": \"Question\", \"name\": \"Are these suitable for DIY audio amplifier projects?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — these are a popular choice for DIY and hobbyist audio amplifier builds, as well as for repairing existing amplifier circuits. The complementary NPN\/PNP pairing makes them ideal for class AB output stages in stereo and mono amplifier designs.\"}}]}\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\": \"2SD1047 \u0026 2SB817 Audio Amplifier Transistors 5pcs TO-3P\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/2sd1047-2sb817-audio-amplifier-transistors-5pcs-to-3p\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"2SD1047","offer_id":44168326119511,"sku":"14:1202#2SD1047","price":7.75,"currency_code":"USD","in_stock":true},{"title":"2SB817","offer_id":44168326152279,"sku":"14:350852#2SB817","price":7.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S4e3af2414ce04937b66c6bdddcfc4a72p.webp?v=1786770746","url":"https:\/\/axlcustomersupport.com\/products\/2sd1047-2sb817-audio-amplifier-transistors-5pcs-to-3p","provider":"Axl","version":"1.0","type":"link"}