FD25H

Overview

The FD25H is a passive bridge diode frequency doubler manufactured by MACOM Technology Solutions. It operates within an input frequency range of 5 MHz to 2400 MHz, producing an output signal between 10 MHz and 4800 MHz. The component utilizes Schottky diodes in its internal design to achieve frequency multiplication. It is housed in a TO-8 package with four leads, suitable for high-volume commercial and test equipment applications requiring reliable signal conditioning.

Feature Summary

• Passive bridge diode architecture utilizing Schottky technology
• Designed for high-volume commercial and test equipment applications
• Provides frequency doubling functionality across specified RF bands

Applications

• Commercial test equipment signal generation
• Military communication systems
• High-volume commercial RF modules

Procurement Notes

Verify the specific suffix variant required for your application, as MACOM offers FD25H, FD25HC, and SFD25H variants which may differ in specifications or packaging. Confirm RoHS compliance status, as some versions may not meet current environmental standards. Ensure the TO-8 package footprint matches your PCB layout requirements before finalizing procurement orders.

Selection Notes

Select the FD25H when a passive frequency doubling solution is needed for inputs up to 2400 MHz. Consider the TO-8 package constraints and the passive nature of the device regarding conversion loss. Evaluate whether the HC or SFD variants offer necessary performance adjustments for specific military or commercial environments compared to the standard FD25H model.

Part Context

The FD25H belongs to MACOM's family of RF frequency doublers, alongside variants like FD25HC and SFD25H. These components are engineered for general-purpose RF applications where stable frequency multiplication is critical. The series supports both commercial and military-grade reliability standards, providing designers with flexible options for different volume and environmental requirements.

Replacement Considerations

Publicly confirmed substitute part numbers include FD25HC and SFD25H from MACOM. Verify if these alternatives meet identical electrical specifications for your specific frequency band and power handling needs before substitution.