MRF8S9120NR3

Overview

The MRF8S9120NR3 is an N-Channel Enhancement-Mode Lateral MOSFET designed for CDMA base station applications operating between 700 MHz and 1000 MHz. It supports Class AB and Class C modulation formats with a typical single-carrier W-CDMA output power of 33 Watts average at 28 Volts drain supply and 800 mA quiescent current. The device delivers approximately 120 Watts CW output power at the 1 dB compression point across the 865 to 960 MHz range. It features internal matching, integrated ESD protection, and a plastic package rated for junction temperatures up to 225°C.

Feature Summary

• Internally matched input and output networks for simplified circuit design
• Integrated electrostatic discharge (ESD) protection mechanisms
• Optimized specifically for Doherty amplifier configurations
• Designed to support digital predistortion error correction systems

Applications

• CDMA base station power amplification
• Class AB cellular base station modulation formats
• Class C cellular base station modulation formats
• Digital predistortion linearization systems
• Doherty amplifier architectures

Procurement Notes

Verify component authenticity through authorized distribution channels due to discontinuation status. Confirm RoHS compliance documentation matches specific manufacturing lots. Validate moisture sensitivity level ratings prior to soldering processes. Ensure storage conditions adhere to specified temperature ranges to maintain device integrity before assembly.

Selection Notes

Select this component for high-power RF applications requiring robust ruggedness against voltage standing wave ratio variations. Consider thermal management requirements given the high junction temperature capability. Evaluate compatibility with existing base station architectures supporting W-CDMA standards. Verify impedance matching network designs align with provided series equivalent large-signal parameters.

Part Context

This lateral N-channel RF power MOSFET belongs to the MRF8S9120N family manufactured by Freescale Semiconductor. It utilizes a plastic OM-780-2 package style suitable for surface mount technology. The device represents a specialized solution for telecommunications infrastructure, focusing on efficiency and linearity in demanding radio frequency environments.

Replacement Considerations

Consult official manufacturer documentation for verified substitute part numbers. Cross-reference electrical characteristics and physical dimensions carefully. Ensure any replacement maintains compatibility with existing thermal and impedance matching constraints.