2N5462

Overview

The onsemi 2N5462 is a P-channel silicon junction field-effect transistor (JFET) designed for small-signal applications. It operates in depletion mode and features a single-element configuration housed in a TO-92 package with three through-hole terminals. Key electrical parameters include a maximum drain-gate voltage of -40 V, a gate-source voltage limit of ±40 V, and a forward gate current rating of 10 A. The device supports a maximum operating temperature of 150 °C and exhibits a maximum feedback capacitance (Crss) of 2 pF.

Feature Summary

• P-channel JFET technology optimized for low-noise performance
• Depletion mode operation suitable for high-impedance signal sources
• Interchangeable source and drain terminals for flexible circuit layout

Applications

• Low-level audio amplification circuits
• General-purpose amplifier stages
• High-impedance buffer applications

Procurement Notes

Verify the specific manufacturer suffix and package variant when sourcing, as the 2N5462 designation is utilized by multiple semiconductor producers including Fairchild and Motorola/NXP. Confirm that the received component matches the required JEDEC-95 code and absolute maximum ratings to ensure compatibility with the intended design specifications.

Selection Notes

Select this component for designs requiring a P-channel JFET with low feedback capacitance and high input impedance. Ensure the application voltage does not exceed the -40 V drain-gate or gate-source limits. Consider the thermal management requirements given the 150 °C maximum junction temperature rating for reliable long-term operation.

Part Context

This device belongs to the general-purpose small-signal JFET family, often grouped with complementary N-channel variants like the 2N5457. It is primarily engineered for analog signal processing tasks where low noise and high input impedance are critical. The TO-92 packaging facilitates easy integration into standard through-hole prototyping and manufacturing processes.

Replacement Considerations

Compatible substitutes include the MMBF5462 for surface-mount requirements and the 2N5460/5461 series for N-channel alternatives. Verify pinout compatibility and electrical parameter alignment before substituting.