BF961 is a N-Channel Dual Gate MOS-Fieldeffect Tetrode produced by Vishay Semiconductors, with features of high cross modulation performance, low noise figure, high AGC range, low feedback capacitance, low input capacitance, used in input and mixer stages, especially for FM- and VHF TV-tuners up to 300 MHz.
This document is a technical datasheet for the Vishay BF961, an N-Channel Dual Gate MOS-Fieldeffect Tetrode operating in depletion mode. The device features integrated gate protection diodes and is designed for input- and mixer stages in FM- and VHF TV-tuners up to 300 MHz.
The datasheet provides comprehensive data including mechanical details (TO-50 plastic case), absolute maximum ratings, electrical DC characteristics, AC parameters such as forward transadmittance and capacitance, typical performance curves, and package dimensions.
| Product Type | N-Channel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode |
|---|---|
| Package | TO50 Plastic case |
| Weight | approx. 124 mg |
| Drain - source voltage (Max) | 20 V |
| Total power dissipation (Tamb ≤ 60 °C) | 200 mW |
| Channel temperature (Max) | 150 °C |
| Feedback capacitance (Max) | 25 fF |
It is used in input- and mixer stages especially for FM- and VHF TV-tuners up to 300 MHz.
The maximum channel temperature (TCh) is 150 °C.