What are the main features of the CGH40120F?
The CGH40120F is a high-power RF MOSFET designed for use in RF and microwave amplification. It operates on a 28 V supply and supports signals from DC up to about 4 GHz, with strong performance up to 2.5 GHz. The device delivers high output power with around 120 W typical saturated output and strong small-signal gain (about 20 dB at 1 GHz and 15 dB at 2 GHz). It also offers good efficiency (around 70 % at PSAT), making it suitable for high-duty RF power applications.
What is the CGH40120F used for?
This RF power MOSFET is commonly used in RF power amplifier stages for wireless infrastructure, broadcast transmitters, industrial RF heating, and test equipment. It is ideal for applications that require reliable high-power signal amplification across a broad frequency range, helping drive high power loads while maintaining stable gain and efficiency.
Does the CGH40120F have any alternative parts?
Yes. Alternative RF power transistors with similar voltage, power, and frequency capabilities are available from other manufacturers and even within Cree’s product lines. Options from vendors like NXP, Infineon, MACOM, and Qorvo can be considered, provided they meet the required operating frequency range, power level, package, and bias conditions for your specific design. When choosing a substitute, ensure the alternative’s specifications closely match your application’s performance and thermal requirements.
