M3933/25-33N

Overview

The M3933/25-33N is a fixed RF attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides a nominal attenuation of 7dB with a 50 Ohm impedance. The device operates within a frequency range of 0 Hz to 12.4 GHz and supports a maximum power dissipation of 2W. It utilizes SMA connectors in an in-line module configuration. The component complies with MIL-DTL-M3933 standards, indicating military-grade qualification.

Feature Summary

• Complies with MIL-DTL-M3933 specifications for military-grade reliability
• Provides fixed 7dB attenuation at 50 Ohm impedance
• Operates across a wide frequency spectrum up to 12.4 GHz
• Features SMA connector interface in an in-line module form factor

Applications

• Military communication systems requiring signal level control
• Test and measurement equipment calibration setups
• Radio frequency circuit protection and signal conditioning
• Aerospace electronic subsystems

Procurement Notes

Verify the specific suffix 'N' against official manufacturer documentation to confirm connector gender and exact mechanical dimensions. Ensure compliance with MIL-DTL-M3933 requirements for your application environment. Check RoHS status as military components may not meet standard environmental directives. Confirm availability through authorized distributors due to potential long lead times associated with qualified parts.

Selection Notes

Select this component when a precise 7dB attenuation is required in a 50 Ohm system operating below 12.4 GHz. Consider the SMA interface compatibility with existing PCB or cable assemblies. Evaluate the 2W power handling capability against peak signal levels. Verify that the military grade qualification meets project reliability standards compared to commercial alternatives.

Part Context

This part belongs to the M3933/25 series of fixed attenuators from Cinch Connectivity Solutions. The series offers various attenuation values while maintaining consistent electrical performance and mechanical form factors. These components are designed for high-reliability applications where stable attenuation characteristics are critical over temperature and frequency variations.

Replacement Considerations

Direct substitutes include other M3933/25 series variants with different attenuation values if the dB requirement changes. Cross-reference with equivalent MIL-DTL-M3933 compliant parts from other manufacturers ensuring identical SMA interfaces and 12.4 GHz frequency limits.