The 2SA1266 is a PNP silicon epitaxial transistor manufactured by KEC (Korea Electronics Co., Ltd.). It is designed for use in audio amplifier and general-purpose applications, where it provides good linearity and gain characteristics.

Applications

• Audio Amplifiers: Used in the output stage of audio amplifiers to deliver power to the speakers.
• General Purpose Amplification: Suitable for various amplification applications requiring good linearity and gain.
• Driver Stages: Employed as a driver transistor to boost the signal before it reaches the output stage.
• Switching Applications: Used in switching circuits where moderate current and voltage are required.
• Linear Regulators: Employed in linear voltage regulator circuits.

Features

• PNP Transistor: Standard PNP configuration for ease of integration.
• High Collector Current: Capable of handling a collector current (IC) of up to -1.5A.
• Low Saturation Voltage: Low VCE(sat) for efficient switching and reduced power dissipation.
• High DC Current Gain (hFE): Provides good amplification characteristics for audio and general-purpose applications.
• Good Linearity: Ensures minimal signal distortion in amplifier circuits.

Benefits

• High Power Output: Suitable for driving speakers and delivering high-quality audio.
• Efficient Operation: Low saturation voltage reduces power dissipation, leading to more efficient circuits.
• Good Amplification: High current gain allows for effective signal amplification.
• Versatile Application: Suitable for both amplification and switching applications.
• Reliable Performance: KEC is known for producing reliable semiconductor components.

Additional Details

The 2SA1266 has a collector-emitter voltage (VCEO) rating of -80V and a collector-base voltage (VCBO) rating of -80V. It is typically available in a TO-126 or similar package for adequate thermal dissipation. The power dissipation (PC) is rated at 1.2W. The operating junction temperature range is typically from -55°C to +150°C. Its characteristics make it useful for various audio and general-purpose applications where linearity and gain are important.