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BF988 Vishay Telefunken www.vishay.de • FaxBack +1-408-970-5600 Rev. 4, 08-Jul-99 1 (8) Document Number 85007 N–Channel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode Electrostatic sensitive device. Observe precautions for handling. Applications Input- and mixer stages especially VHF- and UHF- tuners. Features DIntegrated gate protection diodes DHigh cross modulation performance DLow noise figure DHigh gain DHigh AGC-range DLow feedback capacitance DLow input capacitance 1 4 3 2 94 9307 96 12647 BF988 Marking: BF988 Plastic case (TO 50) 1 = Drain, 2 = Source, 3 = Gate 1, 4 = Gate 2 G 2 G 1 D S 12623 Absolute Maximum Ratings T amb = 25_C, unless otherwise specified ParameterTest ConditionsTypeSymbolValueUnit Drain - source voltageV DS 12V Drain currentI D 30mA Gate 1/Gate 2 - source peak current±I G1/G2SM 10mA Total power dissipationT amb ≤ 60 °CP tot 200mW Channel temperatureT Ch 150°C Storage temperature rangeT stg –55 to +150°C Maximum Thermal Resistance T amb = 25_C, unless otherwise specified ParameterTest ConditionsSymbolValueUnit Channel ambienton glass fibre printed board (40 x 25 x 1.5) mm 3 plated with 35mm Cu R thChA 450K/W