M3933/25-72S

Overview

The M3933/25-72S is a fixed RF attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides a nominal attenuation of 7 dB with a tolerance of ±0.4 dB. The component operates within a frequency range of 0 Hz to 18 GHz and features a 50 Ohm impedance. It has a power rating of 2 W and utilizes SMA connectors in an in-line module configuration. The device complies with MIL-DTL-M3933 standards.

Feature Summary

• Complies with MIL-DTL-M3933 military specifications for high reliability
• Provides precise 7 dB attenuation with tight tolerance control
• Supports wideband operation up to 18 GHz frequency range
• Features robust SMA connector interface for secure signal transmission

Applications

• Defense electronic systems requiring screened QPL components
• Aerospace communication equipment testing
• Harsh environment RF signal conditioning

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact compliance level and screening requirements. Ensure that the procurement channel sources parts directly from authorized distributors or the manufacturer to guarantee authenticity. Confirm that the delivered units match the specified MIL-DTL-M3933 qualification standards required for your application.

Selection Notes

Select this model when a fixed 7 dB attenuation is required within the 0 Hz to 18 GHz bandwidth. The 2 W power rating suits moderate power applications. The SMA interface dictates connector compatibility with existing system infrastructure. Verify that the ±0.4 dB tolerance meets the precision requirements of the specific circuit design before integration.

Part Context

This component belongs to the M3933/25 series of connectorized attenuators produced by Midwest Microwave, a division of Cinch Connectivity Solutions. The series offers various attenuation values and frequency ranges tailored for military and aerospace applications. The M3933/25-72S specifically addresses needs for higher frequency operation up to 18 GHz compared to lower-frequency variants in the same family.

Replacement Considerations

Compatible substitutes include other M3933/25 series models such as M3933/25-73S, provided they meet the specific 18 GHz frequency and 7 dB attenuation requirements. Cross-reference datasheets to ensure identical impedance, power handling, and connector type compatibility before substitution.