M3933/25-05N

Overview

The Amphenol SV Microwave M3933/25-05N is a military specification RF attenuator connector designed for high-frequency applications. It features SMA male to female interfaces with a nominal impedance of 50 ohms. The component provides a fixed attenuation value of 5 dB and operates within a frequency range up to 18 GHz. It is rated for a maximum power handling capacity of 2 watts. The unit supports an operating temperature range from -65°C to +165°C, ensuring reliability in extreme environments. This non-screened bulk package variant is engineered for robust performance in defense and aerospace systems requiring precise signal level control.

Feature Summary

• Provides fixed 5 dB signal attenuation for RF circuitry
• Features SMA male to female interface configuration
• Supports operation up to 18 GHz frequency range
• Rated for 2 W power handling capacity

Applications

• Defense communication systems
• Aerospace radar equipment
• Military test and measurement instruments
• Satellite ground station hardware

Procurement Notes

Verify the specific suffix 'N' indicates the non-screened variant when sourcing replacements. Confirm that the SMA gender configuration matches the required male-to-female topology for integration. Ensure the 5 dB attenuation value aligns with the system's signal loss budget. Check that the 18 GHz frequency limit meets the operational bandwidth requirements. Validate the 2 W power rating against peak signal levels to prevent component damage during high-power transmission scenarios.

Selection Notes

Select this component when a fixed 5 dB reduction is required in SMA-based RF paths. Consider the 18 GHz upper frequency limit for compatibility with microwave signals. Evaluate the 2 W power rating to ensure it exceeds the maximum expected input power. The wide temperature range suits harsh environmental deployments. Choose the non-screened version if shielding is provided by the host enclosure or cable assembly rather than the connector body itself.

Part Context

This part belongs to the M3933 series of RF military specification connectors manufactured by Amphenol SV Microwave. The series includes various attenuator values and configurations using SMA interfaces. These components are designed to meet rigorous MIL-SPEC standards for durability and electrical performance. The M3933/25-05N specifically addresses needs for moderate signal attenuation in high-frequency military applications.

Replacement Considerations

M3933/25-05S is a screened variant with identical electrical specifications. M3933/25-31N offers different attenuation characteristics. Verify interface gender and attenuation values before substitution.