M3933/25-67S

Overview

The M3933/25-67S is a screened SMA male-to-female RF attenuator manufactured by Amphenol SV Microwave. It operates within a frequency range of 0 Hz to 18 GHz and maintains a characteristic impedance of 50 Ohms. The component provides a nominal attenuation value of 4.5 dB with a maximum power rating of 2 W. Designed for military specifications, it supports an operating temperature range from -65 °C to +165 °C.

Feature Summary

• Screened construction for enhanced signal integrity
• Military specification compliance
• Wide operational temperature capability

Applications

• Military communication systems
• Aerospace instrumentation
• High-frequency test equipment

Procurement Notes

Verify the specific suffix 'S' indicates the screened variant when sourcing replacements. Confirm that the required attenuation tolerance and power handling meet system design constraints. Ensure compatibility with existing SMA connector interfaces in the assembly.

Selection Notes

Select this model for applications requiring screened RF attenuation up to 18 GHz. Compare against non-screened variants if shielding is not critical. Verify thermal management requirements given the high maximum operating temperature rating.

Part Context

This part belongs to the M3933 series of connectorized attenuators. It utilizes standard SMA connectors for easy integration into RF chains. The screened version offers improved performance in noisy environments compared to open-frame designs.

Replacement Considerations

M3933/25-67N is a parameter-equivalent non-screened alternative from the same manufacturer.