2N5431

Overview

The Central Semiconductor Corp 2N5431 is an N-channel Junction Field-Effect Transistor (JFET) constructed using silicon technology. It is housed in a hermetically sealed TO-18 metal can package with three leads, designed for through-hole mounting. This component functions as a voltage-controlled resistor or amplifier, offering high input impedance and low noise characteristics suitable for precision analog signal processing applications.

Feature Summary

• Hermetically sealed metal can construction ensures environmental stability
• High input impedance characteristic of JFET topology
• Voltage-controlled operation for linear amplification

Applications

• Low-noise preamplifier stages
• Precision analog switching circuits
• Variable gain amplifier designs

Procurement Notes

Verify the specific datasheet version for the 2N5431 to confirm exact electrical parameters such as pinch-off voltage and drain current, as these values vary significantly between manufacturing lots. Ensure the procurement source provides official Central Semiconductor documentation rather than generic third-party summaries to guarantee component authenticity and performance consistency.

Selection Notes

Select the 2N5431 when a rugged, hermetically sealed N-channel JFET is required for harsh environments. Consider its TO-18 package size for board space constraints and evaluate its noise specifications against other JFETs if ultra-low noise is critical. Confirm that the required drain-source voltage ratings align with the circuit's operational limits before finalizing the design.

Part Context

The 2N5431 belongs to the family of silicon N-channel JFETs manufactured by Central Semiconductor Corp. These devices are part of a broader portfolio of discrete semiconductors aimed at providing engineers with reliable options for reduced power consumption and robust performance in various electronic systems, particularly where hermetic sealing is necessary.