PN4391 PBFREE

Overview

The PN4391 PBFREE is an N-channel Junction Field-Effect Transistor (JFET) manufactured by Central Semiconductor Corp. It features a maximum drain-source breakdown voltage of 40 V and a gate-source breakdown voltage of 40 V. The device supports a continuous drain current of 50 mA with a power dissipation rating of 625 mW. It utilizes a TO-92-3 through-hole package and operates within a temperature range of -65°C to +150°C.

Feature Summary

• N-channel JFET configuration for signal amplification
• High input impedance characteristics
• Through-hole mounting capability

Applications

• Low-noise amplifier circuits
• Analog switching applications
• Constant current source designs

Procurement Notes

Verify the specific part number PN4391 PBFREE against official Central Semiconductor documentation to confirm RoHS compliance status and exact electrical tolerances. Ensure the procurement channel provides valid traceability data. Confirm that the TO-92-3 package dimensions match the design requirements before finalizing orders.

Selection Notes

Select this component when an N-channel JFET with a 40 V breakdown voltage and 50 mA current capacity is required. The TO-92-3 package suits through-hole PCB layouts. Compare the 625 mW power dissipation limit against thermal constraints in the target application environment.

Part Context

This discrete semiconductor belongs to the JFET product category from Central Semiconductor Corp. The manufacturer specializes in standard and niche discrete devices, offering both surface mount and through-hole options. The PN4391 serves as a specialized transistor solution within their broader portfolio of silicon-based electronic components.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.