The 2SC3112B is a silicon NPN epitaxial planar transistor manufactured by Toshiba Semiconductor and Storage. It is designed for high-frequency amplification and switching applications. This transistor is commonly used in radio frequency (RF) amplifiers, oscillators, and mixer circuits.

Applications

• RF amplifiers
• Oscillators
• Mixer circuits
• High-speed switching circuits
• VHF/UHF applications

Features

• NPN silicon epitaxial planar transistor
• High transition frequency (fT)
• Low noise figure
• High power gain
• Small signal amplifier

Benefits

• Excellent performance in high-frequency applications
• Low noise amplification
• Efficient signal amplification
• Suitable for compact circuit designs

Additional Details

The 2SC3112B features a high transition frequency (fT) typically around 2.5 GHz, making it suitable for high-frequency applications. Its collector-emitter voltage (VCEO) is typically around 12V. The collector current (IC) is typically 50mA. The power dissipation (PC) is around 200mW. It is typically housed in a small SOT-23 or similar surface-mount package. The low noise figure ensures that the transistor adds minimal noise to the amplified signal. The high power gain allows for efficient amplification of weak signals. This transistor is often used in communication equipment, such as radio receivers and transmitters. The epitaxial planar structure ensures high reliability and performance. The 'B' suffix likely indicates a specific gain range or other characteristic. Detailed specifications can be found in the Toshiba datasheet for this part number.