* this series offers operating gate current specified at -250 fA (U421-3), high gain at low operating currents, and tight matching (10 mV for U421 and U424). Additionally, its TO-78 package is hermetically sealed and may be screened per MIL-S-19500. (See Section 1.) For additional design information
U421
Siliconix
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N-channel jfet pairs.
~Siliconix .LII incorporated U421 SERIES N-Channel JFET Pairs The U421 Series are monolithic pairs of n-channel JFETs designed to provide very high .
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