M3933/25-59S

Overview

The M3933/25-59S is a fixed RF attenuator manufactured by Cinch Connectivity Solutions under the Midwest Microwave brand. It features SMA connectors and provides a nominal attenuation of 0.5 dB. The device operates within a frequency range of 0 Hz to 18 GHz and supports a maximum power dissipation of 2 W. Designed for in-line module applications, it maintains a 50 Ohm impedance. The unit is constructed for coaxial signal transmission and is qualified to MIL-DTL-M3933 standards.

Feature Summary

• MIL-DTL-M3933 qualified construction for military-grade reliability
• SMA connector interface for standard RF interconnection
• In-line module form factor for direct circuit integration

Applications

• Military radio systems requiring precise signal level adjustment
• Avionics test and measurement equipment
• Defense communication infrastructure

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to confirm exact attenuation values and connector gender configurations. Ensure compliance with MIL-DTL-M3933 requirements for intended defense applications. Confirm RoHS status and material composition details prior to procurement, as these components may not meet standard environmental regulations.

Selection Notes

Select this component when a minimal attenuation value of 0.5 dB is required at frequencies up to 18 GHz. The SMA interface ensures compatibility with standard coaxial systems. Verify that the 2 W power rating meets system thermal requirements. Consider the physical dimensions of the in-line module for PCB or chassis mounting constraints.

Part Context

This component belongs to the M3933/25 series of connectorized attenuators from Midwest Microwave. The series offers various attenuation levels while maintaining consistent SMA interfaces and high-frequency performance characteristics suitable for demanding electronic environments.

Replacement Considerations

Cross-reference with other M3933/25 series variants for different attenuation values. Verify mechanical fit and electrical specifications against alternative MIL-spec attenuators before substitution.