The 2SA1728 is a PNP silicon epitaxial transistor manufactured by SANYO Semiconductor. It is designed for use in various audio amplifier and switching applications. This transistor is known for its relatively high collector current and voltage ratings, making it suitable for driving medium power loads.

Applications

• Audio amplifiers (pre-amplifier and power amplifier stages)
• Switching circuits
• Driver stages for motors and relays
• General-purpose amplification

Features

• High collector current (Ic) rating
• High collector-emitter voltage (Vceo) rating
• Low saturation voltage
• High transition frequency (fT) for audio applications

Benefits

• Provides clean and amplified audio signal in amplifier circuits.
• Efficient switching due to low saturation voltage.
• Reliable operation in various electronic circuits.
• Can be used in a variety of through-hole applications.

Additional Details

The 2SA1728 is typically supplied in a through-hole package. Key parameters include a collector-emitter voltage (VCEO) of -120V, a collector current (IC) of -1.5A, and a power dissipation (PC) of 1.2W. The transistor has a current gain (hFE) typically ranging from 100 to 320, dependent on the specific grade. It is important to consult the datasheet for precise operating conditions and specifications.