BF451, High-Frequency PNP Silicon Planar Epitaxial Transistor, TO-92 Package

The BF451 is a high-frequency PNP silicon planar epitaxial transistor designed for use in RF applications, particularly in mixer stages of AM receivers and intermediate frequency stages of AM/FM receivers. With a transition frequency of approximately 325 MHz and low feedback capacitance achieved through shield diffusion, the BF451 ensures high performance in high-frequency circuits. Its low noise characteristics make it suitable for sensitive signal amplification. Encapsulated in a compact TO-92 plastic package, it offers ease of integration into various circuit designs.

• High Transition Frequency – Offers a transition frequency (f_T) of approximately 325 MHz, making it suitable for high-frequency applications.
• Low Feedback Capacitance – Designed with shield diffusion to minimize feedback capacitance, enhancing performance in RF circuits.
• Low Noise Performance – Engineered for low noise, making it ideal for sensitive signal amplification in RF stages.
• Compact TO-92 Package – Encapsulated in a standard TO-92 plastic package, facilitating easy integration into various circuit designs.
• Silicon Planar Epitaxial Construction – Utilizes silicon planar epitaxial technology for reliable and consistent performance.
• Suitable for Mixer and IF Stages – Primarily intended for mixer stages in AM receivers and intermediate frequency (IF) stages in AM/FM receivers.