click to buy information furnished by linear integrated systems and micross components is believed to be accurate and reliable. however, no responsibility is assumed for its use; nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of linear integrated systems. micross components ltd, united kingdom, te l: +44 1603 788967, fax: +44 1603788920, email: chipcomponents@micross.com web: www.micross.com/distribution.aspx features ? direct ? replacement ? for ? siliconix ? j309 ? outstanding ? high ? frequency ? gain ?? g pg = ? 11.5db ? low ? high ? frequency ? noise ? nf ? = ? 2.7db ? absolute ? maximum ? ratings ? @ ? 25c 1 ? ? maximum ? temperatures ? storage ? temperature ?\ 55c ? to ? +150c ? operating ? junction ? temperature ?\ 55c ? to ? +135c ? maximum ? power ? dissipation ? continuous ? power ? dissipation ?? 350mw ? maximum ? current gate ? current ? 10ma ? maximum ? voltages ? gate ? to ? drain ? voltage ? or ?? gate ? to ? source ? voltage ??\ 25v ? ?? ?? j309 ? electrical ? characteristics ? @ ? 25c ? (unless ? otherwise ? noted) symbol ? characteristic ? min ? typ. ? max ? unit ? conditions ? bv gss ? gate ? to ? source ? breakdown ? voltage ?\ 25 ? \\? \\? v ? v ds ? = ? 0v, ? i g ? = ?\ 1a ? v gs ( f ) ? gate ? to ? source ? forward ? voltage ? 0.7 ? \\? 1 ? v ds ? = ? 0v, ? i g ? = ? 10ma ? v gs ( off ) ? gate ? to ? source ? cutoff ? voltage ?\ 1 ? \\? \ 4 ? v ds ? = ? 10v, ?? i d ? = ? 1na ? i dss ? drain ? to ? source ? saturation ? current 2 ? 12 ? \\? 30 ? ma ? v ds ? = ? 10v, ? v gs ? = ? 0v ? i g ? gate ? operating ? current ? (note ? 3) ? \\? \ 15 ? \\? pa ? v dg ? = ? 9v, ?? i d ? = ? 10ma ? r ds ( on ) ? drain ? to ? source ? on ? resistance ? \\? 35 ? \\? ? v gs ? = ? 0v, ?? i d ? = ? 1ma ? ??????? j309 ? dynamic ? electrical ? characteristics ? @ ? 25c ? (unless ? otherwise ? noted) ? symbol ? characteristic ? min ? typ. ? max ? unit ? conditions ? g fs ? forward ? transconductance ? 10 ? 14 ? \\? ms ? v ds ? = ? 10v, ??? i d ? = ? 10ma ? , ? f ? = ? 1khz ? g os ? output ? conductance ? \\? 110 ? 250 ? s ? c iss ? input ? capacitance ? \\? 4 ? 5 ? pf ? v ds ? = ? 10v, ??? v gs ? = ?\ 10v ? , ? f ? = ? 1mhz ?? c rss ? reverse ? transfer ? capacitance ? \\? 1.9 ? 2.5 ? e n ? equivalent ? noise ? voltage ? 6 ? \\? \\? nv/ hz ? v ds ? = ? 10v, ???? i d ? = ? 10ma ? , ?? f ? = ? 100hz ? ??????? j309 ? high ? frequency ? characteristics ? @ ? 25c ? (unless ? otherwise ? noted) ? symbol ? characteristic ? min ? typ ? max ? unit ? conditions ? nf ? noise ? figure ? f ? = ? 105mhz ? \\? 1.5 ? \\? db ?? ? ? ? v ds ? = ? 10v, ???? i d ? = ? 10ma ? f ? = ? 450mhz ? \\? 2.7 ? \\? db ? g pg ? power ? gain 3 ? f ? = ? 105mhz ? \\? 16 ? \\? ? f ? = ? 450mhz ? \\? 11.5 ? \\? ? g fg ? forward ? transconductance ? f ? = ? 105mhz ? \\? 14 ? \\? ? ? ms ? f ? = ? 450mhz ? \\? 13 ? \\? g og ? output ? conductance ? f ? = ? 105mhz ? \\? 0.16 ? \\? f ? = ? 450mhz ? \\? 0.55 ? \\? ??? ??? ??? ??? ??? j309 n-channel jfet linear s y stems re p laces discontinued siliconix j309 the j309 is a high frequency n-channel jfet offering a wide range and low noise performance. the to-92 package is well suited for cost sensitive applications and mass production. (see packaging information). j309 applications: ? uhv / vhf amplifiers ? mixers ? oscillators j309 benefits: ? high power low noise gain ? dynamic range greater than 100db ? easil y matched to 75 ? in p ut micross components europe available packages: lsj309 in to-92 lsj309 in bare die. please contact micross for full package and die dimensions note ? 1 ?\? absolute ? maximum ? ratings ? are ? limiting ? values ? above ? which ? j309 serviceability ? may ? be ? impaired. ?? note ? 2 ?\? pulse ? test ? : ? pw ?? 300s, ? duty ? cycle ?? 3% ? note ? 3 ?\? measured ? at ? optimum ? input ? noise ? match ? tel: +44 1603 788967 email: chipcomponents@micross.com web: http://www.micross.com/distribution to-92 (bottom view)
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