M3933/14-21S

Overview

The M3933/14-21S is a screened SMA male-to-female in-line attenuator manufactured by Amphenol SV Microwave. It operates within a frequency range of DC to 12.4 GHz with a nominal attenuation value of 12 dB. The component features a 50 Ohm impedance and supports a maximum power rating of 2 Watts. Designed for high-reliability applications, it functions across an operating temperature range of -65°C to +165°C.

Feature Summary

• Screened construction for enhanced environmental protection
• SMA gender transition from male to female connector interface
• High-temperature capability suitable for extreme environments

Applications

• Satellite communication systems
• Microwave circuit power level adjustment
• Military RF interconnects

Procurement Notes

Verify the specific datasheet version for the M3933/14-21S to confirm exact screening requirements and dimensional tolerances. Ensure compatibility with existing SMA mating interfaces and validate thermal management strategies for continuous 2W operation at elevated temperatures.

Selection Notes

Select this model when a fixed 12 dB attenuation is required in the 12.4 GHz band. The screened variant is appropriate for harsh environments where shielding integrity is critical. Confirm that the SMA male-to-female configuration matches the system topology.

Part Context

This part belongs to the M3933 series of space-grade attenuators designed for satellite microwave circuits. These components provide precise RF power control in demanding aerospace and defense applications requiring high reliability and stable performance over wide temperature ranges.

Replacement Considerations

M3933/14-21N is a parameter-equivalent non-screened alternative from the same manufacturer.