The 2SA1226(T2B) is a PNP Epitaxial Planar Transistor manufactured by NEC. This transistor is designed for high-frequency power amplifier applications. It features high collector power dissipation and excellent linearity, making it suitable for audio amplifiers and other high-performance circuits.

Applications

• Audio power amplifiers
• High-frequency amplifiers
• Output stages of amplifiers
• Driver stages in amplifiers
• Switching applications

Features

• PNP Epitaxial Planar Transistor
• High collector power dissipation
• High transition frequency (fT)
• Low saturation voltage
• Excellent linearity
• Available in a through-hole package (e.g., TO-220)

Benefits

• High power output for audio amplification
• Suitable for high-frequency applications
• Efficient switching performance
• Low distortion in audio circuits
• Easy to mount and heatsink with TO-220 package

Additional Details

The 2SA1226(T2B) is typically packaged in a TO-220 package, which allows for easy mounting and effective heat dissipation. The high transition frequency makes it suitable for high-frequency amplification circuits. The low saturation voltage reduces power losses during switching, contributing to improved efficiency. The T2B suffix typically denotes a specific gain ranking or production batch identifier but does not fundamentally alter the transistor's core specifications. The transistor’s high power dissipation rating enables it to handle significant power levels in amplifier circuits. Proper heat sinking is crucial to ensure reliable operation, especially at high power levels. The excellent linearity ensures low distortion in audio applications.

Key electrical parameters include collector-emitter voltage (VCEO), collector current (IC), collector power dissipation (PC), and transition frequency (fT). Consult the NEC datasheet for complete specifications, application notes, and recommended biasing techniques. Ensure proper heat sinking to prevent thermal runaway.