2N5484

Overview

The onsemi 2N5484 is an N-channel Junction Field-Effect Transistor (JFET) designed for radio frequency applications. It operates with a drain-source voltage rating of 15 V and a maximum drain current of 5 mA. The device supports frequencies up to 400 MHz and features a noise figure of 4 dB. It is housed in a surface-mount SOT-23-3 package, suitable for compact RF circuit designs.

Feature Summary

• Optimized for high-frequency RF signal processing
• Low noise performance for sensitive front-end stages
• Compact surface-mount packaging for space-constrained layouts

Applications

• RF amplifier input stages
• Low-noise oscillator circuits
• High-frequency signal mixing

Procurement Notes

Verify the specific manufacturer datasheet for the 2N5484 to confirm exact electrical tolerances and pinout configurations before integration. Ensure that the component's thermal characteristics align with the target application's operating environment requirements.

Selection Notes

Select this component when designing circuits requiring low-noise amplification at frequencies around 400 MHz. Consider the SOT-23-3 footprint constraints and ensure the biasing network accommodates the specified 15 V maximum voltage rating.

Part Context

The 2N5484 belongs to the MMBF54xx series of RF JFETs from onsemi. This family provides standardized small-signal transistor solutions for RF communication systems, offering consistent performance across similar package types like the MMBF5484.

Replacement Considerations

The MMBF5484 serves as a direct functional substitute within the same product family, sharing identical RF specifications and SOT-23-3 packaging.