MRF9135LR5

Overview

The MRF9135LR5 is an N-channel silicon RF power MOSFET designed for Ultra High Frequency (UHF) band applications. Manufactured by Freescale Semiconductor, this component utilizes LDMOS technology to deliver high performance in a compact surface-mount package. The device operates with a drain voltage of 26V and supports frequencies up to 880MHz. It provides a gain of 17.8dB and handles output power levels around 25W. The part is housed in the NI-780H-2L package, ensuring reliable thermal management and electrical stability for demanding RF transmission environments.

Feature Summary

• N-channel silicon MOSFET construction optimized for UHF frequency bands
• LDMOS technology integration for enhanced RF power handling capabilities
• Surface-mount NI-780H-2L package design for efficient PCB integration

Applications

• Ultra High Frequency (UHF) radio transmitter stages
• Commercial mobile communication base stations
• Professional broadcast equipment signal amplification

Procurement Notes

Verify the manufacturer marking matches Freescale Semiconductor or NXP Semiconductors to ensure authenticity. Confirm the package type is NI-780H-2L and check for RoHS compliance status. Request original datasheets to validate electrical parameters against application requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits requiring robust RF power amplification in the UHF range. Ensure the system voltage aligns with the 26V drain specification. Consider the thermal characteristics of the NI-780H-2L package for adequate heat dissipation in high-power continuous operation scenarios.

Part Context

This part belongs to the MRF series of RF power transistors from Freescale Semiconductor. It serves as a discrete active component within larger RF amplifier modules. The LR5 suffix typically denotes specific packaging or testing configurations within the product line, distinguishing it from other variants in the same family.

Replacement Considerations

Consult official substitution lists for compatible LDMOS devices from NXP or Freescale. Verify pinout compatibility and thermal resistance values when considering alternative packages. Cross-reference electrical specifications to ensure equivalent gain and power handling capabilities.