M3933/25-33S

Overview

The M3933/25-33S is a screened RF MIL Spec connectorized attenuator manufactured by Amphenol SV Microwave. It features SMA male to female interfaces with a 50 Ohm impedance and operates up to 18 GHz. The unit provides a nominal attenuation of 7 dB, supports a power rating of 2 W, and functions within a temperature range of -65°C to +165°C.

Feature Summary

• Screened construction for enhanced environmental protection
• SMA male to female inline configuration
• Military specification compliance

Applications

• RF signal level reduction in military communication systems
• Test and measurement equipment requiring precise attenuation
• High-frequency circuit protection and isolation

Procurement Notes

Verify the specific screening status and exact attenuation tolerance against the manufacturer's current datasheet before integration. Confirm that the SMA interface gender and bulk packaging align with system requirements. Ensure thermal management capabilities meet the operational temperature limits defined in the official documentation.

Selection Notes

Select this component when a screened, high-reliability attenuator is required for frequencies up to 18 GHz. The 7 dB attenuation value suits applications needing moderate signal reduction. Verify compatibility with existing SMA infrastructure and ensure the 2 W power handling capacity exceeds peak operational levels.

Part Context

This part belongs to the M3933 series of RF MIL Spec connectors from Amphenol SV Microwave. These components are designed for rugged environments, offering consistent performance across wide frequency ranges. The series includes various attenuation values and interface types to support diverse defense and aerospace electronic architectures.

Replacement Considerations

Cross-reference with other screened SMA attenuators rated for 18 GHz and 7 dB loss. Ensure substitute parts maintain the same 50 Ohm impedance and power rating. Verify mechanical dimensions and mounting configurations match the original design constraints.