The 2SC4738-Y(T5L is a silicon NPN bipolar transistor from Toshiba Semiconductor and Storage, designed for high-frequency amplification. The suffix -Y indicates a specific hFE (DC current gain) ranking, and (T5L likely refers to a particular packaging or taping specification.

Applications

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

Features

• High transition frequency (fT)
• Low noise figure
• High gain
• Small package size
• Excellent linearity

Benefits

• Effective signal amplification at high frequencies.
• Minimal added noise in amplifier circuits, improving signal-to-noise ratio.
• Strong signal amplification.
• Allows for compact designs in portable and space-constrained applications.
• Low distortion in amplified signals.

Additional Details

The 2SC4738-Y(T5L typically comes in a small surface-mount package. Typical maximum ratings include a collector-base voltage of 20V, collector-emitter voltage of 12V, and emitter-base voltage of 3V. Collector current is typically rated around 50mA. The exact transition frequency (fT) and noise figure will be available in the datasheet. It is designed for applications needing amplification and low noise at VHF and UHF frequencies. The specific hFE ranking (indicated by the -Y) ensures consistent gain characteristics within a production batch. Careful impedance matching is crucial for optimal performance in high-frequency amplifier designs.