INFINEON BFP405 handbook

This document describes the features and characteristics of the BFP405 NPN Silicon RF Transistor, which is suitable for low current applications and oscillators up to 12 GHz. It has a noise figure of 1.25 dB at 1.8 GHz and an outstanding gain of 23 dB at the same frequency. The transistor has a transition frequency of 25 GHz and utilizes gold metallization for high reliability.