The 2SC2238B is an NPN silicon epitaxial transistor manufactured by Toshiba Semiconductor and Storage. It is designed for high-frequency amplifier applications, particularly in the VHF and UHF bands. This transistor provides excellent gain and low noise characteristics, making it suitable for sensitive receiver and amplifier circuits.

Applications:

• High-frequency amplifiers
• VHF/UHF amplifiers
• Oscillators
• Mixers
• Communication equipment

Features:

• NPN silicon epitaxial transistor
• High gain
• Low noise figure
• High transition frequency (fT)
• Excellent linearity

Benefits:

• Enables high-performance signal amplification at high frequencies
• Minimizes noise interference in sensitive circuits
• Suitable for VHF and UHF band applications
• Provides stable performance over a wide range of operating conditions
• Facilitates compact circuit designs

Additional Details:

The 2SC2238B has a collector-emitter voltage (VCEO) of 25V, a collector current (IC) of 80mA, and a power dissipation (PC) of 300mW. It features a high transition frequency (fT) of around 1.5 GHz, enabling its use in high-frequency applications. The transistor typically comes in a small signal package, such as a TO-92 or similar, making it easy to integrate into compact circuit boards. Proper biasing and impedance matching are critical for achieving optimal performance. Common applications include TV tuners, radio receivers, and other high-frequency communication systems. The device adheres to industry-standard safety and environmental regulations.