The 2SC4935 is a silicon NPN epitaxial planar transistor manufactured by Toshiba Semiconductor and Storage. It is designed for use in high-frequency amplifier applications.

Applications

• High-frequency amplifiers
• Oscillators
• Mixers
• RF front ends
• Wireless communication systems

Features

• High transition frequency (fT = 7 GHz typical)
• Low noise figure (NF = 1.5 dB typical)
• High power gain
• Small surface mount package
• Excellent linearity

Benefits

• Enables effective signal amplification at high frequencies
• Minimizes added noise in amplifier circuits, improving signal-to-noise ratio
• Provides strong signal amplification
• Allows for compact designs in portable devices
• Ensures low distortion in amplified signals

Additional Details

The 2SC4935 is typically packaged in a small surface mount package, like SOT-343. The absolute maximum ratings include a collector-base voltage of 20 V, collector-emitter voltage of 12 V, and an emitter-base voltage of 3 V. The collector current is typically rated at around 30 mA. This transistor's high transition frequency and low noise figure make it an excellent choice for high-frequency amplifier applications where minimizing noise and maximizing signal amplification are crucial. Proper impedance matching is essential for optimal performance. Its compact size makes it suitable for use in portable and handheld devices.