2N4391 TIN/LEAD

Jfets Overview

The Central Semiconductor Corp 2N4391 TIN/LEAD is an N-channel Junction Field-Effect Transistor (JFET) constructed using silicon technology. It features a maximum drain-to-gate voltage of 40 V and a gate-to-source breakdown voltage of 40 V, with a gate cutoff voltage of 10 V. The device supports a continuous drain current of 50 mA at zero gate-to-source voltage and exhibits a typical on-resistance of 30 Ohms. Power dissipation is rated at 625 mW, allowing operation within a temperature range from -65 °C to +150 °C. This component utilizes a TO-92-3 through-hole package configuration.

Jfets Feature Summary

• Utilizes silicon-based JFET technology for stable signal amplification
• Provides high input impedance characteristics suitable for low-noise applications
• Features a robust thermal operating range extending up to 150 °C

Jfets Applications

• Low-noise preamplifier stages in audio equipment
• High-impedance buffer circuits
• Analog switching and chopper-stabilized amplifier designs

Jfets Procurement Notes

Verify the specific ordering suffix required for tin/lead termination plating when placing orders. Confirm that the requested packaging format aligns with production requirements, as bulk or reel options may vary by manufacturer lot. Ensure compliance with project specifications regarding lead content restrictions before finalizing procurement documentation.

Jfets Selection Notes

Select this component when designing circuits requiring an N-channel JFET with a 40 V voltage rating and moderate current handling capabilities. Consider the TO-92-3 package constraints for board space and thermal management. Evaluate the 30 Ohm on-resistance against circuit load requirements to ensure proper signal integrity and power efficiency during operation.

Jfets Part Context

This part belongs to the standard JFET family produced by Central Semiconductor Corp. It serves as a discrete semiconductor solution for analog signal processing tasks. The device is distinct from complementary P-channel variants like the PN4392, offering specific N-channel performance metrics tailored for general-purpose electronic applications.

Jfets Replacement Considerations

Direct substitutes include the PN4391 PBFREE variant for lead-free assembly requirements. Other compatible N-channel JFETs with similar 40 V ratings and TO-92 packages should be evaluated based on matching electrical parameters such as gate cutoff voltage and on-resistance.