MRF377HR5

Overview

The MRF377HR5 is an N-channel enhancement-mode lateral MOSFET designed for broadband commercial and industrial applications operating between 470 MHz and 860 MHz. It features a 65 V drain-source voltage rating, 17 A continuous drain current, and 648 W total device dissipation at 25°C case temperature. The component utilizes the NI-860C3 flange mount package with integrated ESD protection and internally matched input/output circuits.

Feature Summary

• Internally matched input and output circuits simplify amplifier design
• Integrated electrostatic discharge (ESD) protection mechanisms
• Designed specifically for push-pull operation configurations
• Characterized using series equivalent large-signal impedance parameters

Applications

• Large-signal common source amplifier applications in digital television transmitter equipment
• Broadband commercial broadcasting systems
• Industrial RF heating and processing equipment

Procurement Notes

Verify component authenticity through authorized channels as this part is obsolete. Confirm RoHS compliance status and check for valid lifetime buy documentation if sourcing remaining stock. Ensure thermal interface materials match the NI-860C3 package specifications for proper heat dissipation during installation.

Selection Notes

Select this component for designs requiring high gain and broadband performance within the 470 to 860 MHz range. Ensure the application supports push-pull topology as single-ended use is not specified. Verify that the 32 V supply voltage aligns with typical operational requirements for optimal efficiency and linearity metrics.

Part Context

This device belongs to the MRF377 family of RF power LDMOS transistors manufactured by Freescale Semiconductor, now NXP USA Inc. The HR5 suffix indicates tape and reel packaging. The product has reached end-of-life status with last order dates recorded in July 2011.

Replacement Considerations

Consult official substitution guides for compatible alternatives. No specific substitute part numbers are confirmed in the provided documentation.