M3933/16-11S

Overview

The M3933/16-11S is a connectorized RF attenuator manufactured by Cinch Connectivity Solutions under the Midwest Microwave brand. It features SMA male-to-female connectors and provides a fixed attenuation of 9 dB. The device operates within a frequency range of 0 Hz to 18 GHz with a 50 Ohm impedance. It has a power rating of 2 W and functions between -55°C and +125°C. Packaged as a screened QPL unit, it is designed for high-reliability applications.

Feature Summary

• Screened Qualified Products List (QPL) compliance for military standards
• Fixed 9 dB attenuation in an inline module configuration
• SMA male-to-female interface for direct circuit integration

Applications

• Defense electronic systems requiring qualified components
• Aerospace communication equipment signal conditioning
• Test and measurement instrumentation calibration

Procurement Notes

Verify current availability status directly with the manufacturer or authorized distributors, as this component may be subject to special order requirements. Confirm that the specific screened QPL designation matches project documentation requirements. Ensure environmental specifications align with operational temperature ranges. Request official datasheets and drawing references prior to finalizing procurement orders.

Selection Notes

Select this model when a precise 9 dB reduction is required at frequencies up to 18 GHz. The SMA interface suits standard coaxial test setups. Consider the 2 W power handling limit for signal levels. The screened QPL version is appropriate for regulated defense contracts where traceability and qualification are mandatory.

Part Context

This part belongs to the M3933/16 series of connectorized attenuators from Cinch Connectivity Solutions. The series offers various attenuation values while maintaining consistent SMA interfaces and 18 GHz bandwidth. These units are engineered for harsh environments, supporting both commercial and military aerospace applications with reliable performance.

Replacement Considerations

M3933/16-11N is the non-screened equivalent variant. Verify if the screened QPL requirement is strictly necessary for the application. Other series members like M3933/25 offer different frequency limits.