The 2SC4505-P is a silicon NPN epitaxial planar transistor manufactured by Rohm Semiconductor. It's designed for low-noise amplification in various electronic circuits. The '-P' suffix likely denotes a specific production lot, packaging variant, or electrical characteristic within the 2SC4505 series.

Applications

• Low-Noise Amplifiers (LNAs)
• Audio Amplifiers
• Pre-Amplifiers
• Microphone Amplifiers
• Sensor Signal Amplification

Features

• NPN Epitaxial Planar Transistor
• Low Noise Figure (NF)
• High Current Gain (hFE)
• High Transition Frequency (fT)
• Small Signal Amplifier

Benefits

• Low-Noise Performance: Designed to minimize noise in sensitive amplifier circuits.
• High Gain: Provides sufficient signal amplification.
• High-Frequency Capability: Suitable for a range of amplifier applications.
• Reliable Operation: Ensures stable and consistent performance.

Additional Details

The 2SC4505-P's key advantage is its low noise figure, making it suitable for amplifying weak signals without introducing significant noise. It typically comes in a small surface-mount package for high-density board designs. The datasheet specifies critical parameters such as collector-emitter voltage, collector current, power dissipation, and noise figure. Proper biasing is essential for optimal low-noise performance. The 'P' designation may also indicate a specific lead-free or RoHS compliance status.