MRF166W

Overview

The MRF166W is an N-channel enhancement mode RF MOSFET designed for wideband large-signal output and driver stages operating from 30 to 500 MHz. It delivers a guaranteed output power of 40 W with 14 dB gain and 50% efficiency at 500 MHz under 28 Vdc bias. Typical performance at 175 MHz yields 40 W output, 17 dB gain, and 60% efficiency. The device features excellent thermal stability suitable for Class A operation and includes a push-pull configuration to reduce even-numbered harmonics.

Feature Summary

• Push-pull configuration reduces even-numbered harmonics
• Excellent thermal stability ideally suited for Class A operation
• Facilitates manual gain control, automatic level control, and modulation techniques

Applications

• Wideband large-signal output stages
• Driver stages
• Class A amplifier applications

Procurement Notes

Verify the specific datasheet revision (e.g., Rev. V1) against the manufacturer's official documentation before procurement. Confirm that the package style matches the required mechanical footprint. Ensure the application environment supports the specified voltage and frequency ranges. Check for any recent updates to the product specifications or testing requirements directly from MACOM Technology Solutions.

Selection Notes

Select this component when designing circuits requiring high linearity and thermal stability in Class A configurations. The device is appropriate for applications needing reliable performance across a broad frequency range up to 500 MHz. Consider the low Crss value for improved stability in high-frequency designs. Evaluate the need for harmonic suppression capabilities provided by the internal push-pull structure.

Part Context

This part belongs to the MACOM RF MOSFET Line, specifically engineered for robust performance in demanding radio frequency environments. It serves as a critical active element in transmitter chains where consistent power delivery and gain are essential. The component is manufactured by M/A-COM Technology Solutions Inc., focusing on high-reliability semiconductor solutions for communication systems.

Replacement Considerations

Consult the official MACOM database for verified substitute part numbers. Do not assume cross-compatibility with other RF MOSFETs without verifying electrical parameters and pinout configurations. Review the latest datasheets for potential obsolescence notices or recommended upgrades within the same product family.

FAQ

What is the maximum operating frequency for the MRF166W?

The MRF166W is designed primarily for operation up to 500 MHz.

Is the MRF166W suitable for Class A operation?

Yes, the device features excellent thermal stability, making it ideally suited for Class A operation.

How does the MRF166W handle load mismatch conditions?

The device is 100% tested for load mismatch at all phase angles with a 30:1 VSWR.