20/10Pcs Original 2SD669A 2SB649A TO-126 Complementary Bipolar Transistors (NPN/PNP Pair) - D669A Audio Power Amplifier Driver Transistors, 160V 1.5A
Product Overview
The 2SD669A (NPN) and 2SB649A (PNP) are a high-performance complementary bipolar transistor pair designed for audio amplifier driver stages and low-noise signal amplification. Packaged in TO-126 encapsulation, these transistors deliver reliable power handling and precise signal matching, making them ideal for push-pull circuits in Hi-Fi audio systems, preamplifiers, and professional audio equipment.
Applications:
Audio Amplifiers: Driver stages for Hi-Fi power amplifiers, headphone amps, and preamplifiers.
Signal Processing: Voltage regulation and low-noise amplification in audio mixers.
Push-Pull Circuits: Balanced output stages in Class AB/B amplifiers.
Repair & DIY Projects: Direct replacement for legacy D669A transistors in vintage audio equipment.
Product Overview
The 2SD669A (NPN) and 2SB649A (PNP) are a high-performance complementary bipolar transistor pair designed for audio amplifier driver stages and low-noise signal amplification. Packaged in TO-126 encapsulation, these transistors deliver reliable power handling and precise signal matching, making them ideal for push-pull circuits in Hi-Fi audio systems, preamplifiers, and professional audio equipment.
Applications:
Audio Amplifiers: Driver stages for Hi-Fi power amplifiers, headphone amps, and preamplifiers.
Signal Processing: Voltage regulation and low-noise amplification in audio mixers.
Push-Pull Circuits: Balanced output stages in Class AB/B amplifiers.
Repair & DIY Projects: Direct replacement for legacy D669A transistors in vintage audio equipment.