BF988 is a N-Channel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode produced by Vishay Telefunken. The device has high cross modulation performance, low noise, high gain, high AGC range, low feedback capacitance and low input capacitance.
This document is a datasheet for the Vishay BF988, an N-channel dual gate MOS-FET tetrode operating in depletion mode. It is designed for use in input and mixer stages, particularly for VHF and UHF tuners. Key features include high cross-modulation performance, low noise figure, high gain, and low feedback and input capacitance. The device is housed in a plastic TO-50 case.
| Drain - source voltage | 12 V |
|---|---|
| Drain current | 30 mA |
| Channel temperature | 150 °C |
| Storage temperature range | -55 to +150 °C |
| Feedback capacitance | 25 fF |
The BF988 is suitable for input- and mixer stages, especially in VHF- and UHF- tuners.
The maximum channel temperature is 150 °C.
The noise figure is 1 dB when GS = 2 mS, GL = 0.5 mS, and f = 200 MHz.