ARF446G

Overview

The ARF446G is an N-channel enhancement mode RF power MOSFET designed for high-frequency applications. It operates at a frequency of 40.68MHz with a voltage rating of 900V and a current rating of 6.5A. The device delivers an output power of 140W and provides a gain of 15dB. Packaged in a TO-247 case, it is part of a symmetric pair intended for push-pull configurations.

Feature Summary

• N-channel enhancement mode RF power MOSFET construction
• Designed for symmetric push-pull operation pairs
• High voltage and current handling capabilities

Applications

• Scientific RF equipment
• Commercial RF systems
• Medical RF devices
• Industrial RF heating

Procurement Notes

Verify the manufacturer designation as Microsemi Corporation or its successor entity Microchip Technology. Confirm the specific suffix 'G' matches the required package and tape/reel specifications if applicable. Ensure the component status is active before procurement to avoid obsolescence issues.

Selection Notes

Select this component for applications requiring high-voltage RF power amplification at 40.68MHz. Consider its symmetric pairing capability for push-pull topologies. Evaluate thermal management requirements due to the 140W output power specification within the TO-247 package.

Part Context

The ARF446G belongs to the ARF446/ARF447 family of common source RF power transistors. These components are engineered for robust performance in demanding RF environments. The series supports high-power wireless communication systems and other very high frequency devices requiring reliable solid-state switching.

Replacement Considerations

Consult official substitution lists for equivalent RF power MOSFETs from Microchip Technology. Verify pinout compatibility and electrical parameter alignment before replacing the ARF446G with alternative part numbers.