The BFQ19 is a NPN transistor with a transition frequency of 5.5 GHz. It is primarily intended for use in UHF and microwave amplifiers.
This document is a product specification datasheet for the Philips BFQ19, an NPN transistor designed for use in thick and thin-film circuits. It is primarily intended for applications in UHF and microwave amplifiers, such as those found in aerial amplifiers, radar systems, oscilloscopes, and spectrum analyzers. The device features very low intermodulation distortion and high power gain.
| Collector-emitter voltage (open base) | 15 V |
|---|---|
| DC collector current | 100 mA |
| Transition frequency | 5.5 GHz |
| Feedback capacitance | 1.3 pF |
| Noise figure | 3.3 dB |
| Collector-base voltage (open emitter) | 20 V |
| Emitter-base voltage (open collector) | 3.3 V |
| DC current gain | 25 to 80 |
The maximum junction temperature is 175 °C.
The transistor is in a SOT89 plastic envelope.