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IFN422 - Dual Matched N-Channel JFET

Download the IFN422 datasheet PDF. This datasheet also covers the IFNU421 variant, as both devices belong to the same dual matched n-channel jfet family and are provided as variant models within a single manufacturer datasheet.

General Description

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.

Key Features

  • InterFET N0001H Geometry.
  • Low Leakage: 0.25 pA Typical.
  • Low Input Capacitance: 2.0 pF Typical.
  • High Input Impedance.
  • Replacement for U421, U422, U423.
  • RoHS Compliant.
  • SMT, TH, and Bare Die Package options.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (IFNU421-InterFET.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number IFN422
Manufacturer InterFET
File Size 278.52 KB
Description Dual Matched N-Channel JFET
Datasheet download datasheet IFN422 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
IFN424 Dual Matched N-Channel JFET InterFET Corporation
IFN425 Dual Matched N-Channel JFET InterFET Corporation
IFN426 Dual Matched N-Channel JFET InterFET Corporation
IFN112 N-Channel JFET InterFET Corporation
IFN146 Dual Matched N-Channel JFET InterFET Corporation

Other Datasheets by InterFET

Part Number Description
IFN421 Dual Matched N-Channel JFET
IFN423 Dual Matched N-Channel JFET
IFN40 N-Channel JFET
IFN410 N-Channel Matched Dual Silicon Junction Field-Effect Transistor
IFN411 N-Channel Matched Dual Silicon Junction Field-Effect Transistor

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
InterFET Product Folder Technical Support Order Now IFNU421-2-3 IFNU421, IFNU422, IFNU423 Dual Matched N-Channel JFET Features • InterFET N0001H Geometry • Low Leakage: 0.25 pA Typical • Low Input Capacitance: 2.0 pF Typical • High Input Impedance • Replacement for U421, U422, U423 • RoHS Compliant • SMT, TH, and Bare Die Package options. Applications • Low Leakage Input Buffer • High Frequency Amplifier/Buffer • Ultrahigh Impedance Pre-Amplifier • Impedance Converters Description 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 hermetically sealed and suitable for military applications.