b-60 01/99 j304, j305 n-channel silicon junction field-effect transistor mixers oscillators vhf/uhf amplifiers absolute maximum ratings at t a = 25?c reverse gate source & reverse gate drain voltage C 30 v continuous forward gate current 10 ma continuous device power dissipation 360 mw power derating 3.27 mw/c toe226aa package dimensions in inches (mm) pin configuration 1 drain, 2 source, 3 gate surface mount SMPJ304, smpj305 at 25c free air temperature: j304 j305 process nj26 static electrical characteristics min typ max min typ max unit test conditions gate source breakdown voltage v (br)gss C 30 C 30 v i g = C 1a, v ds = ? v gate reverse current i gss C 100 C 100 pa v gs = C 20 v, v ds = ? v gate source cutoff voltage v gs(off) C 2 C 6 C 0.5 C 3 v v ds = 15 v, i d = 1 na drain saturation current (pulsed) i dss 5151 8mav ds = 15 v, v gs = ? v dynamic electrical characteristics common source forward 4500 7500 3000 s v ds = 15 v, v gs = ?v f = 1 khz g fs 3000 s v ds = 15 v, v gs = ?v f = 100 mhz transconductance 4200 s v ds = 15 v, v gs = ?v f = 400 mhz common source output conductance g os 50 50 s v ds = 15 v, v gs = ? v f = 1 khz common source input capacitance c iss 33pfv ds = 15 v, v gs = ? v f = 1 mhz common source reverse c rss 0.85 0.85 pf v ds = 15 v, v gs = ?v f = 1 mhz transfer capacitance common source output capacitance c oss 11pfv ds = 15 v, v gs = ? v f = 1 mhz common source output conductance g os 60 60 s v ds = 15 v, v gs = ? v f = 100 mhz 80 s v ds = 15 v, v gs = ? v f = 400 mhz common source output susceptance b os 800 800 s v ds = 15 v, v gs = ? v f = 100 mhz 3600 s v ds = 15 v, v gs = ? v f = 400 mhz common source input conductance g is 80 80 s v ds = 15 v, v gs = ? v f = 100 mhz 800 s v ds = 15 v, v gs = ? v f = 400 mhz common source input susceptance b is 2000 2000 s v ds = 15 v, v gs = ? v f = 100 mhz 7500 s v ds = 15 v, v gs = ? v f = 400 mhz common source power gain g ps 20 db v ds = 15 v, i d = 5 ma f = 100 mhz 11 db v ds = 15 v, i d = 5 ma f = 400 mhz noise figure nf 1.7 db v ds = 15 v, i d = 5 ma f = 100 mhz 3.8 db r g = 1 f = 400 mhz 1000 n. shiloh road, garland, tx 75042 (972) 487-1287 fax (972) 276-3375 www.interfet.com databook.fxp 1/13/99 2:09 pm page b-60
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