bf998 bf998r 1.pdf datasheet:

DISCRETE SEMICONDUCTORSDATA SHEETBF998; BF998RSilicon N-channel dual-gateMOS-FETsProduct specification 1996 Aug 01Supersedes data of April 1991File under Discrete Semiconductors, SC07Philips Semiconductors Product specificationSilicon N-channel dual-gate MOS-FETs BF998; BF998RFEATURES Short channel transistor with high forward transfer handbook, halfpaged4 3admittance to input capacitance ratio Low noise gain controlled amplifier up to 1 GHz.g2g1APPLICATIONS VHF and UHF applications with 12 V supply voltage,1 2such as television tuners and professionalcommunications equipment. s,bTop view MAM039 DESCRIPTIONMarking code: MOp.Depletion type field effect transistor in a plasticFig.1 Simplified outline (SOT143)microminiature SOT143 or SOT143R package with sourceand symbol; BF998.and substrate interconnected. The transis