BF998R

BF998/BF998R/BF998RW Vishay Telefunken 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 D D D D Integrated gate protection diodes Low noise figure Low feedback capacitance High cross modulation performance D Low input capacitance D High AGC-range D High gain 2 1 1 2 94 9279 13 579 94 9278 95 10831 3 4 4 3 BF998 Marking: MO Plastic case (SOT 143) 1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1 BF998R Marking: MOR Plastic case (SOT 143R) 1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1 1 2 13 654 13 566 4 3 BF998RW Marking: WMO Plastic case (SOT 343R) 1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1 Document Number 85011 Rev. 4, 23-Jun-99 www.vishay.de FaxBack +1-408-970-5600 1 (9) BF998/BF998R/BF998RW Vishay Telefunken Absolute Maximum Ratings Tamb = 25_C, unless otherwise specified Parameter Drain - source voltage Drain current Gate 1/Gate 2 - source peak current Gate 1/Gate 2 - source voltage Total power dissipation Channel temperature Storage temperature range Test Conditions Symbol Value VDS 12 ID 30 ±IG1/G2SM 10 ±VG1S/G2S 7 Ptot 200 TCh 150 Tstg –65 to +150 Unit V mA mA V mW °C °C Tamb ≤ 60 °C Maximum Thermal Resistance Tamb = 25_C, unless otherwise specified Parameter Test Conditions Channel ambient on glass fibre printed board (25 x 20 x 1.5) mm3 plated with 35mm Cu Symbol RthChA Value 450 Unit K/W Electrical D...