BF998 (1) datasheet pdf

BF998/BF998R/BF998RW Vishay Telefunken www.vishay.de • FaxBack +1-408-970-5600 Rev. 4, 23-Jun-99 1 (9) Document Number 85011 N–Channel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode Electrostatic sensitive device. Observe precautions for handling. Applications Input and mixer stages in UHF tuners. Features DIntegrated gate protection diodes DLow noise figure DLow feedback capacitance DHigh cross modulation performance DLow input capacitance DHigh AGC-range DHigh gain 13 579 21 43 94 9279 BF998 Marking: MO Plastic case (SOT 143) 1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1 95 10831 21 43 94 9278 BF998R Marking: MOR Plastic case (SOT 143R) 1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1 2 1 34 13 56613 654 BF998RW Marking: WMO Plastic case (SOT 343R) 1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1