MA40108-137

RF Diode Overview

The MA40108-137 is a voltage variable absorptive attenuator manufactured by MACOM Technology Solutions. It operates within the frequency range of 0.5 to 3.0 GHz and provides a maximum attenuation of 40 dB. This component utilizes an absorptive design, which maintains impedance matching across the entire attenuation range, ensuring stable performance in RF signal processing applications.

RF Diode Feature Summary

• Voltage-controlled operation for dynamic attenuation adjustment
• Absorptive topology ensures consistent port matching
• Broadband coverage from 0.5 to 3.0 GHz

RF Diode Applications

• RF test and measurement equipment
• Wireless communication base stations
• Signal conditioning circuits

RF Diode Procurement Notes

Verify the specific suffix (e.g., -137) against the official MACOM datasheet to confirm pinout, package type, and termination requirements. Ensure compatibility with existing PCB layouts and thermal management designs before procurement.

RF Diode Selection Notes

Select this component when broadband voltage control is required without the VSWR degradation typical of reflective attenuators. The absorptive nature makes it suitable for applications where signal reflection must be minimized across the full tuning range.

RF Diode Part Context

This part belongs to the AT series of voltage variable attenuators from M/A-COM. It shares functional similarities with parts like the AT-108 but may differ in specific electrical tolerances or packaging configurations defined by the manufacturer's product line updates.

RF Diode Replacement Considerations

Direct replacements include the AT-108 and MAAVSS0007, which share identical frequency ranges and attenuation capabilities. Verify mechanical footprint and pin assignments before substituting.