The 2N5564/5565/5566 are matched pairs of JFETs mountedin a TO-71 package. This two-chip design reduces parasiticsfor good performance at high frequency while ensuringextremely tight matching. This series features highbreakdown voltage (V(BR)DSS typically > 55 V), high gain(typically > 9 mS), and <5 mV offset between the two die.The hermetically-sealed TO-71 package is available with fullmilitary processing (see Military Information).For similar products see the low-noise U/SST401 series, andthe low-leakage 2N5196/5197/5198/5199 data sheets.