PN4393 APM PBFREE

Overview

The PN4393 APM PBFREE is an N-channel Junction Field-Effect Transistor (JFET) manufactured by Central Semiconductor. It utilizes silicon technology and is housed in a TO-92-3 through-hole package within an Ammo Pack configuration. The device features a drain-source voltage rating of 40V, a continuous drain current of 100mA, and a power dissipation capacity of 625mW. Key electrical characteristics include a maximum gate cutoff current of 1nA at -20V, a typical on-resistance of 100 ohms, and a minimum forward transconductance of 1000µS at VDS=10V and ID=1mA.

Feature Summary

• N-channel JFET construction for signal amplification and switching applications
• Low gate leakage current ensuring high input impedance
• Through-hole mounting capability with robust mechanical packaging

Applications

• Low-noise preamplifier stages
• Analog switching circuits
• Constant current source implementations

Procurement Notes

Verify the specific suffix 'APM' corresponds to the Ammo Pack bulk packaging format rather than standard tape-and-reel or loose bulk configurations. Confirm RoHS compliance status via the official datasheet as manufacturing processes may vary. Ensure the ordering part number matches the exact pinout and thermal specifications required for the target PCB layout design.

Selection Notes

Select this component when a low-voltage, N-channel JFET with moderate gain is required for discrete analog designs. The TO-92-3 package facilitates easy prototyping and through-hole assembly. Consider the 40V breakdown voltage and 100mA current limits to ensure operation remains within safe operating area boundaries during circuit simulation and testing phases.

Part Context

This component belongs to the Central Semiconductor discrete transistor portfolio, specifically categorized under Junction Field-Effect Transistors. It serves as a fundamental active element for linear and switching applications requiring high input impedance and low noise performance in consumer and industrial electronic systems.

Replacement Considerations

Consult official substitution guides for equivalent N-channel JFETs with matching voltage and current ratings. Verify pin compatibility and thermal characteristics before integrating alternative manufacturers' components into existing designs.