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. features ? direct ? replacement ? for ? siliconix ? j109 ? low ? on ? resistance ? r ds ( on ) ? ? 12 ? fast ? switching ? t ( on ) ?? 4ns ? absolute ? maximum ? ratings ? @ ? 25c ? (unless ? otherwise ? noted) ? maximum ? temperatures ? storage ? temperature ?\ 55c ? to ? +150c ? operating ? junction ? temperature ?\ 55c ? to ? +150c ? maximum ? power ? dissipation ? continuous ? power ? dissipation ?? 350mw ? maximum ? current gate ? current ? (note ? 1) ? 50ma ? maximum ? voltages ? gate ? to ? drain ? voltage ? v gds ? = ?\ 25v ? gate ? to ? source ? voltage ? v gss ? = ?\ 25v ? ?? j109 ? electrical ? characteristics ? @ ? 25c ? (unless ? otherwise ? noted) symbol ? characteristic ? min ? typ. ? max ? units ? conditions ? bv gss ? gate ? to ? source ? breakdown ? voltage ?\ 25 ? \\? \\? ? ? v ? i g ? = ? 1a, ??? v ds ? = ? 0v ? v gs ( off ) ? gate ? to ? source ? cutoff ? voltage ?\ 2 ? \\? \ 6 ? v ds ? = ? 5v, ? i d ? = ? 1a ? v gs ( f ) ? gate ? to ? source ? forward ? voltage ? \\? 0.7 ? \\? i g ? = ? 1ma, ??? v ds ? = ? 0v ? i dss ? drain ? to ? source ? saturation ? current ? (note ? 2) ? 40 ? \\? \\? ma ? v ds ? = ? 15v, ? v gs ? = ? 0v ? i gss ? gate ? reverse ? current ? \\? \ 0.01 ?\ 3 ?? na ? v gs ? = ?\ 15v, ?? v ds ? = ? 0v ? i g ? gate ? operating ? current ? \\? \ 0.01 ? \\? v dg ? = ? 10v, ?? i d ? = ? 10ma ? i d ( off ) ? drain ? cutoff ? current ? \\? ? 0.02 ? 3 ? v ds ? = ? 5v, ? v gs ? = ?\ 10v ? r ds ( on ) ? drain ? to ? source ? on ? resistance ? \\? \\? 12 ?? v gs ? = ? 0v, ?? v ds ?? 0.1v ? ? ? ???? ? j109 ? dynamic ? electrical ? characteristics ? @ ? 25c ? (unless ? otherwise ? noted) ? symbol ? characteristic ? min ? typ. ? max ? units ? conditions ? g fs ? forward ? transconductance ? \\? 17 ? \\? ms ? v ds ? = ? 5v, ?? i d ? = ? 10ma ? , ? f ? = ? 1khz ? g os ? output ? conductance ? \\? 0.6 ? \\? r ds ( on ) ? drain ? to ? source ? on ? resistance ? \\? \\? 12 ?? v gs ? = ? 0v, ? i d ? = ? 0a, ?? f ? = ? 1khz ? c iss ? input ? capacitance ? \\? 60 ? \\? ? pf ? v ds ? = ? 0v, ? v gs ? = ? 0v, ? f ? = ? 1mhz ? c rss ? reverse ? transfer ? capacitance ? \\? 11 ? \\? v ds ? = ? 0v, ? v gs ? = ?\ 10v, ? f ? = ? 1mhz ? e n ? equivalent ? noise ? voltage ? \\? 3.5 ? \\? nv/ hz ? v ds ? = ? 5v, ?? i d ? = ? 10ma ? , ? f ? = ? 1khz ? ? ? ???? ? j109 ? switching ? characteristics ? @ ? 25c ? (unless ? otherwise ? noted) ? symbol ? characteristic ?? units ? conditions ? t d(on) ? turn ? on ? time ? 3 ?? ? ns ? v dd ? = ? 1.5v ? v gs (h) ? = ? 0v ? ? see ? switching ? circuit ? t r ? turn ? on ? rise ? time ? 1 ? t d(off) ? turn ? off ? time ? 4 ? t f ? turn ? off ? fall ? time ? 18 ? ??????????????????????????????????????????????????????????????? ????????????????????????????????????????????????? ? j109 ? switching ? circuit ? parameters ??????????????????????????????????????????????????????????????? ?????????????????????????????????????????????????????????? ? v gs(l) ?\ 7v ?? r l ? 150 ? ? i d(on) ? 10ma ?? ??? ??? ??? ??? ??? j109 n-channel jfet linear s y stems re p laces discontinued siliconix j109 this n-channel jfet is optimised for low noise high performance switching. the part is particularly suitable for use in low noise audio amplifiers. the sot-23 package is well suited for cost sensitive applications and mass production. ( see packa g in g information ) . j109 applications: ? analog switches ? commutators ? cho pp ers j109 benefits: ? low on resistance ? low insertion loss ? low noise micross components europe available packages: j109 in sot-23 j109 in bare die. please contact micross for full package and die dimensions note ? 1 ?\? absolute ? maximum ? ratings ? are ? limiting ? values ? above ? which ? j109 serviceability ? may ? be ? impaired. ?? note ? 2 ? ? pulse ? test: ? pw ? 300 ? s, ? duty ? cycle ?? 3% tel: +44 1603 788967 email: chipcomponents@micross.com web: http://www.micross.com/distribution switching ? test ? circuit sot-23 (top view)
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