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IFN3958 - Dual Matched N-Channel JFET

Download the IFN3958 datasheet PDF. This datasheet also covers the IFN3957 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 -50V InterFET IFN3957 and IFN3958 matched pair JFET’s are targeted for high input impedance applications for mid to high frequency designs.

Gate leakages are typically 10pA at room temperatures.

Parts are matched down to 5mV.

Key Features

  • InterFET N0016H Geometry.
  • Typical Noise: 6 nV/√Hz.
  • Low Ciss: 3.5pF Typical.
  • High Input Impedance.
  • Replacement for 2N3957,8 Parts.
  • RoHS Compliant.
  • SMT, TH, and Bare Die Package options.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (IFN3957-InterFET.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number IFN3958
Manufacturer InterFET
File Size 294.15 KB
Description Dual Matched N-Channel JFET
Datasheet download datasheet IFN3958 Datasheet

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 IFN3957-8 IFN3957, IFN3958 Dual Matched N-Channel JFET Features • InterFET N0016H Geometry • Typical Noise: 6 nV/√Hz • Low Ciss: 3.5pF Typical • High Input Impedance • Replacement for 2N3957,8 Parts • RoHS Compliant • SMT, TH, and Bare Die Package options. Applications • Differential Amplifiers • Low Noise Pre-Amplifier • High Impedance Amplifier Description The -50V InterFET IFN3957 and IFN3958 matched pair JFET’s are targeted for high input impedance applications for mid to high frequency designs. Gate leakages are typically 10pA at room temperatures. Parts are matched down to 5mV. The TO-71 package is hermetically sealed and suitable for military applications. Custom specifications, matching, and packaging options are available.