IFN421 jfet equivalent, dual matched n-channel jfet.
* InterFET N0001H Geometry
* Low Leakage: 0.25 pA Typical
* Low Input Capacitance: 2.0 pF Typical
* High Input Impedance
* Replacement for U421, U422,.
* Low Leakage Input Buffer
* High Frequency Amplifier/Buffer
* Ultrahigh Impedance Pre-Amplifier
* Imped.
The -40V InterFET IFNU421, IFNU422, and IFNU423 JFET’s are targeted for ultra high input impedance applications for differential amplification and impedance matching. Gate leakages are less than 1pA at room temperatures. The TO-78 package is hermetic.
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