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BF994S Vishay Telefunken www.vishay.de ā¢ FaxBack +1-408-970-5600 Rev. 3, 20-Jan-99 1 (7) Document Number 85008 NāChannel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode Electrostatic sensitive device. Observe precautions for handling. Applications Input- and mixer stages especially VHF TV-tuners. Features DIntegrated gate protection diodes DHigh cross modulation performance DLow noise figure DHigh AGC-range DLow feedback capacitance DLow input capacitance 13 579 21 43 94 9279 BF994 Marking: MG Plastic case (SOT 143) 1=Source, 2=Drain, 3=Gate 2, 4=Gate 1 G 2 G 1 D S 12623 Absolute Maximum Ratings T amb = 25_C, unless otherwise specified ParameterTest ConditionsTypeSymbolValueUnit Drain - source voltageV DS 20V Drain currentI D 30mA Gate 1/Gate 2 - source peak currentĀ±I G1/G2SM 10mA Total power dissipationT amb ā¤ 60 Ā°CP tot 200mW Channel temperatureT Ch 150Ā°C Storage temperature rangeT stg ā55 to +150Ā°C Maximum Thermal Resistance T amb = 25_C, unless otherwise specified ParameterTest ConditionsSymbolValueUnit Channel ambienton glass fibre printed board (25 x 20 x 1.5) mm 3 plated with 35mm Cu R thChA 450K/W
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