{"product_id":"original-2sd1047-2sb817-d1047-b817-high-power-audio-amplifier-transistors-matched-npn-pnp-pair-for-hi-fi-audio-systems-pa-amplifiers","title":"Original 2SD1047 \u0026 2SB817 D1047 B817 High-Power Audio Amplifier Transistors Matched NPN\/PNP Pair for Hi-Fi Audio Systems \/ PA Amplifiers","description":"Original 2SD1047 \u0026amp; 2SB817 D1047 B817 High-Power Audio Amplifier Transistors Matched NPN\/PNP Pair for Hi-Fi Audio Systems \/ PA Amplifiers\u003cbr\u003e\u003cbr\u003e‌Product Description:‌\u003cbr\u003eThe ‌2SD1047 (NPN)‌ and ‌2SB817 (PNP)‌ are precision-matched complementary power transistors designed for high-fidelity audio amplification in demanding applications. With a ‌collector-emitter voltage (VCEO) of 140V‌ and ‌continuous collector current (IC) up to 12A‌, this pair delivers robust, low-distortion performance in Class AB or Class B amplifier circuits, making them ideal for audiophile-grade systems, professional sound equipment, and subwoofer drivers.\u003cbr\u003e\u003cbr\u003eApplications:‌\u003cbr\u003e‌Hi-Fi Audio Systems‌: Power amplifiers, preamp stages, and tone control circuits.\u003cbr\u003e‌Professional Audio‌: PA amplifiers, DJ mixers, and studio monitor systems.\u003cbr\u003e‌Subwoofer \u0026amp; Bass Drivers‌: High-current output stages for 500W+ subwoofers.\u003cbr\u003e‌Car Audio Systems‌: 12V\/24V automotive amplifiers and active crossovers.\u003cbr\u003e‌Vintage Electronics‌: Restoring classic amplifiers from Marantz, Yamaha, and Sansui.","brand":"eleWhole","offers":[{"title":"B817 \/ 1pcs","offer_id":46139438104774,"sku":"21514-B817-1pcs","price":0.21,"currency_code":"PHP","in_stock":true},{"title":"B817 \/ 2pcs","offer_id":46139438137542,"sku":"21514-B817-2pcs","price":0.41,"currency_code":"PHP","in_stock":true},{"title":"D1047 \/ 1pcs","offer_id":46139438170310,"sku":"21514-D1047-1pcs","price":0.21,"currency_code":"PHP","in_stock":true},{"title":"D1047 \/ 2pcs","offer_id":46139438203078,"sku":"21514-D1047-2pcs","price":0.41,"currency_code":"PHP","in_stock":true},{"title":"B817+D1047 \/ 1pcs","offer_id":46139438235846,"sku":"21514-B817+D1047-1pcs","price":0.41,"currency_code":"PHP","in_stock":true},{"title":"B817+D1047 \/ 2pcs","offer_id":46139438268614,"sku":"21514-B817+D1047-2pcs","price":0.83,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6676\/1670\/files\/sg-11134201-7rd6i-m7t8l26q2207ce.jpg?v=1784890891","url":"https:\/\/elewhole.com\/products\/original-2sd1047-2sb817-d1047-b817-high-power-audio-amplifier-transistors-matched-npn-pnp-pair-for-hi-fi-audio-systems-pa-amplifiers","provider":"eleWhole","version":"1.0","type":"link"}