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 ? j204 ? low ? cut ? off ? voltage ? v gs ( off ) ? ? 1.5 ? high ? gain ? a v ? = ? 80 ? v/v ? absolute ? maximum ? ratings ? @ ? 25c ? (unless ? otherwise ? noted) ? maximum ? temperatures ? storage ? temperature ?\ 65c ? to ? +150c ? operating ? junction ? temperature ?\ 55c ? to ? +135c ? maximum ? power ? dissipation ? continuous ? power ? dissipation ?? 350mw ? maximum ? current forward ? gate ? current ? (note ? 1) ? 50ma ? maximum ? voltages ? gate ? to ? drain ? voltage ? v gds ? = ?\ 40v ? gate ? to ? source ? voltage ? v gss ? = ?\ 40v ? ?? ? ? j204 ? 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 ?\ 0.3 ? \\? \ 2 ? v ds ? = ? 15v, ? i d ? = ? 10na ? i dss ? drain ? to ? source ? saturation ? current ? (note ? 2) ? 0.2 ? \\? 3 ? ma ? v ds ? = ? 15v, ?? v gs ? = ? 0v ? i gss ? gate ? reverse ? current ?\ 2 ? \\? \ 100 ?? pa ? v gs ? = ?\ 20v, ?? v ds ? = ? 0v ? i g ? gate ? operating ? current ? \\? \ 2 ? \\? v dg ? = ? 10v, ?? i d ? = ? 0.1ma ? i d ( off ) ? drain ? cutoff ? current ? \\? ? 2 ? \\? v ds ? = ? 15v, ? v gs ? = ?\ 5v ? g fs ? forward ? transconductance ? 0.5 ? \\? \\? ms ? v ds ? = ? 15v, ??? v gs ? = ? 0v ? , ? f ? = ? 1khz ? c iss ? input ? capacitance ? \\? 4.5 ? \\? pf ? v ds ? = ? 15v, ? v gs ? = ? 0v, ? f ? = ? 1mhz ? ? c rss ? reverse ? transfer ? capacitance ? \\? 1.3 ? \\? e n ? equivalent ? noise ? voltage ? \\? 6 ? \\? nv/ hz ? v ds ? = ? 10v, ?? i d ? = ? 1ma ? , ? f ? = ? 1khz ? micross components europe available packages: j204 in to-92 j204 in bare die. please contact micross for full package and die dimensions note ? 1 ?\? absolute ? maximum ? ratings ? are ? limiting ? values ? above ? which ? j204 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 to-92 (bottom view) j204 n-channel jfet linear s y stems re p laces discontinued siliconix j204 the j204 is a high gain n-channel jfet this n-channel jfet is optimised for high gain. the part is particularly suitable for use in low power or high impedance amplifiers. the to-92 package is well suited for cost sensitive applications and mass production. ( see packa g in g information ) . j204 applications: ? battery powered amplifiers ? audio pre-amplifiers ? infra-red detector am p lifiers j204 benefits: ? high input impedance ? low cutoff voltage ? low noise
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