The 2SC4178T2 is a silicon NPN epitaxial planar transistor manufactured by NEC (now Renesas Electronics). It is specifically designed for use in low-noise amplifier (LNA) applications in VHF and UHF bands.

Applications

• Low-noise amplifiers (LNAs)
• VHF/UHF tuners
• Front-end amplifiers in communication receivers
• Oscillators
• Mixers

Features

• NPN Silicon Epitaxial Planar Transistor
• Low noise figure
• High gain
• High transition frequency (fT)
• Small signal amplification

Benefits

• Enhances sensitivity in receiver circuits.
• Minimizes noise for improved signal clarity.
• Improves performance in VHF/UHF tuners.
• Provides stable and reliable amplification.
• Suitable for various high-frequency applications.

Additional Details

The 2SC4178T2 is engineered for optimal low-noise performance at high frequencies. Key parameters include noise figure (NF), gain-bandwidth product (fT), collector-emitter voltage (VCEO), and collector current (IC). Refer to the NEC/Renesas datasheet for detailed specifications. The 'T2' likely signifies specific taping or packaging for automated assembly. It is commonly housed in a small surface-mount package (e.g., SOT-23 or similar). The 2SC4178 is typically used in the front-end stages of receivers where low noise is critical to achieving good signal reception.