M3933/25-37S

Overview

The M3933/25-37S is a connectorized RF attenuator manufactured by Cinch Connectivity Solutions under the Midwest Microwave brand. It provides a fixed attenuation value of 11 dB with a nominal impedance of 50 Ohms. The component operates within a frequency range of 0 Hz to 12.4 GHz and supports a maximum power dissipation of 2 W. It utilizes SMA connectors in an inline module configuration. The device is designed for military applications, adhering to MIL-DTL-M3933 standards.

Feature Summary

• Complies with MIL-DTL-M3933 specifications for qualified products list (QPL) attenuators
• Features SMA male/female interface for direct circuit integration
• Constructed as a screened coaxial inline module

Applications

• Military electronic systems requiring certified RF signal control
• Aerospace communication equipment testing and measurement
• Harsh environment radio frequency circuit protection

Procurement Notes

Verify that the specific order includes QPL screening certification as indicated by the datasheet description. Confirm the SMA connector gender configuration matches the system requirements. Ensure environmental compliance checks are performed, as the product may not be RoHS compliant. Validate the 11 dB attenuation tolerance against the official specification sheet prior to deployment.

Selection Notes

Select this model when a fixed 11 dB attenuation is required within the 12.4 GHz bandwidth. The 2 W power rating suits moderate power levels. The SMA interface dictates compatibility with standard coaxial systems. Consider the MIL-DTL-M3933 qualification if military reliability standards are mandatory for the application design.

Part Context

This part belongs to the M3933/25 series of connectorized attenuators from Midwest Microwave. The series offers various attenuation values while maintaining consistent electrical characteristics and form factors. These components are engineered for high-reliability environments where stable performance across temperature variations is critical for system integrity.

Replacement Considerations

M3933/25-37N serves as the non-screened variant with identical electrical specifications.