The Agilent (now Keysight) AT-42086 is a high-performance silicon bipolar transistor designed for low-noise amplifier (LNA) applications in the 450 MHz to 3 GHz frequency range. It offers excellent gain and low noise figure, making it suitable for various wireless communication systems. Because it's an older part, design documentation may be limited.

Applications

• Low-Noise Amplifiers (LNAs)
• Wireless communication receivers
• Cellular base stations
• GPS receivers
• Satellite communication systems

Features

• Low noise figure
• High gain
• High transition frequency (fT)
• Silicon bipolar technology
• Surface mount package

Benefits

• Improves receiver sensitivity
• Enhances signal-to-noise ratio
• Reduces system noise
• Enables higher data rates

Technical Specifications

The AT-42086 features a low noise figure, typically around 1.7 dB at 2 GHz. It offers a high gain, typically around 12 dB at 2 GHz. The transistor has a high transition frequency (fT), typically around 9 GHz. It is fabricated using silicon bipolar technology. The part is commonly available in a surface mount package, such as SOT-143. The collector-emitter breakdown voltage (BVCEO) and collector current (IC) are critical parameters and can be found in the datasheet. Given its age, substitute components may be considered for new designs.