M3933/25-31S

Overview

The M3933/25-31S is a screened SMA male-to-female connectorized attenuator manufactured by Amphenol SV Microwave. It operates within an 18 GHz frequency range with a nominal attenuation of 5 dB and a 50 Ohm impedance. The component supports a maximum power rating of 2 W and functions reliably between -65°C and +165°C. Packaged in bulk, it complies with RF military specifications for high-reliability applications.

Feature Summary

• Screened construction for enhanced signal integrity
• SMA male to female interface configuration
• Military specification compliance

Applications

• RF test and measurement systems
• Microwave communication equipment
• Defense and aerospace radar systems

Procurement Notes

Verify the specific screening status and attenuation tolerance against the official manufacturer datasheet prior to procurement. Confirm that the SMA gender configuration matches the system requirements. Ensure environmental ratings meet operational temperature extremes. Cross-reference the MIL-spec designation to guarantee authenticity and traceability from authorized sources.

Selection Notes

Select this model when a fixed 5 dB reduction is required in SMA-based circuits up to 18 GHz. Consider the screened variant if electromagnetic interference shielding is necessary. Verify power handling capabilities against peak signal levels. Evaluate thermal performance limits for high-temperature environments exceeding standard commercial ranges.

Part Context

This component belongs to the M3933 series of connectorized attenuators designed for RF military applications. It utilizes standard SMA interfaces to facilitate integration into existing microwave infrastructure. The screened design distinguishes it from non-screened variants within the same family, offering improved isolation characteristics for sensitive signal paths.

Replacement Considerations

M3933/25-31N serves as the non-screened equivalent within the same series.