Original 2SD1047 & 2SB817 D1047 B817 High-Power Audio Amplifier Transistors Matched NPN/PNP Pair for Hi-Fi Audio Systems / PA Amplifiers
Product Description:
The 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.
Applications:
Hi-Fi Audio Systems: Power amplifiers, preamp stages, and tone control circuits.
Professional Audio: PA amplifiers, DJ mixers, and studio monitor systems.
Subwoofer & Bass Drivers: High-current output stages for 500W+ subwoofers.
Car Audio Systems: 12V/24V automotive amplifiers and active crossovers.
Vintage Electronics: Restoring classic amplifiers from Marantz, Yamaha, and Sansui.
Product Description:
The 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.
Applications:
Hi-Fi Audio Systems: Power amplifiers, preamp stages, and tone control circuits.
Professional Audio: PA amplifiers, DJ mixers, and studio monitor systems.
Subwoofer & Bass Drivers: High-current output stages for 500W+ subwoofers.
Car Audio Systems: 12V/24V automotive amplifiers and active crossovers.
Vintage Electronics: Restoring classic amplifiers from Marantz, Yamaha, and Sansui.