The 2SC3906K E is an NPN silicon epitaxial transistor manufactured by Rohm Semiconductor. This transistor is designed for low-noise amplifier applications, particularly in the VHF and UHF bands. Its low noise figure and high gain make it suitable for sensitive receiver circuits and other applications where signal integrity is crucial.

Applications

• Low-Noise Amplifiers (LNA): Used as a first-stage amplifier in receiver circuits.
• VHF/UHF Amplifiers: Designed for amplifying signals in the very high frequency and ultra-high frequency bands.
• Wireless Communication Devices: Employed in radio receivers and transmitters.
• Satellite Receivers: Used in the front-end of satellite communication systems.

Features

• NPN Silicon Epitaxial Transistor: Utilizes silicon epitaxial technology for improved performance.
• Low Noise Figure: Minimizes noise in amplifier circuits.
• High Gain: Provides significant amplification of input signals.
• High Transition Frequency (fT): Capable of operating at high frequencies.

Benefits

• Improved Signal Reception: Low noise figure enhances the ability to detect weak signals.
• Enhanced Sensitivity: High gain amplifies signals effectively, improving sensitivity.
• Reliable Performance: Manufactured by Rohm Semiconductor, ensuring high quality and reliability.
• Compact Design: Small package size allows for efficient use of board space.

Additional Details

The 2SC3906K E transistor has a collector-emitter voltage (VCEO) rating of 20V and a collector current (IC) rating of 30mA. The noise figure is typically very low, often less than 1dB at VHF frequencies. The transition frequency (fT) is typically around 6 GHz. It is typically available in a small signal package such as SOT-23 or similar. This transistor is commonly used in communication systems, radar systems, and other applications where low noise and high gain are essential.