2N5447 TIN/LEAD

Overview

The Central Semiconductor Corp 2N5447 is a silicon N-channel junction field-effect transistor (JFET) housed in a TO-92 leaded package. It operates in depletion mode and is designed for small-signal applications. The device features a single FET configuration with three pins, utilizing plastic/epoxy encapsulation. Key electrical characteristics include a maximum feedback capacitance of 3 pF. It is compliant with RoHS directives regarding restricted substances, though the specific variant specified includes tin/lead terminations.

Feature Summary

• Provides amplification and switching capabilities in small-signal circuits through N-channel conduction.
• Operates in depletion mode, allowing current flow at zero gate-source voltage.
• Utilizes a standard TO-92 cylindrical plastic package for through-hole mounting.

Applications

• Small-signal amplification stages
• Electronic switches
• Impedance matching circuits

Procurement Notes

Verify the exact terminal composition when ordering, as the part number suffix indicates tin/lead plating which may differ from lead-free equivalents. Confirm the manufacturer source, as Central Semiconductor products are often distributed by specialized semiconductor vendors rather than general distributors. Ensure the TO-92 package style matches the PCB footprint requirements. Check for any specific handling instructions related to the epoxy molding compound and axial leads.

Selection Notes

Select this component for low-power analog applications requiring an N-channel JFET. Compare the 3 pF feedback capacitance against circuit bandwidth requirements. Ensure the operating temperature range aligns with the system environment. Verify that the single FET configuration meets the design topology needs without requiring complex biasing networks typical of other transistor types.

Part Context

This component belongs to the family of silicon small-signal JFETs manufactured by Central Semiconductor Corp. These devices are commonly used in legacy and industrial electronics where robustness and linear operation are prioritized. The TO-92 package is a standard form factor for discrete transistors, facilitating easy integration into printed circuit boards via through-hole technology.

Replacement Considerations

Cross-reference with other N-channel JFETs in the TO-92 package, such as the 2N5457 or 2N5485, ensuring pinout compatibility and similar electrical parameters like feedback capacitance and breakdown voltages. Verify that substitute parts meet the same thermal and mechanical specifications.