M3933/25-68N

Overview

The M3933/25-68N is a fixed RF attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides a nominal attenuation value of 5dB within a frequency range of 0 Hz to 18 GHz. The component utilizes SMA in-line module connectors and supports a power rating of 2W. It complies with MIL-DTL-M3933 standards, indicating military-grade qualification. The device operates within a temperature range of -55°C to +125°C. It is classified as a coaxial connectorized attenuator designed for high-performance applications requiring precise signal reduction.

Feature Summary

• Complies with MIL-DTL-M3933 military specifications for rigorous performance standards
• Features SMA in-line module connectors for secure RF interfacing
• Supports operation up to 18 GHz for wideband signal processing
• Rated for 2W power handling in demanding environments

Applications

• Military communication systems
• Aerospace test and measurement equipment
• Defense electronic subsystems
• Harsh environment RF signal conditioning

Procurement Notes

Verify the specific suffix 'N' against official Cinch Connectivity Solutions documentation to confirm compliance with MIL-DTL-M3933 requirements. Ensure that the SMA connector gender and mating interface match system design constraints. Confirm environmental ratings align with operational temperature extremes. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Validate RoHS status and material composition if required by project specifications.

Selection Notes

Select this model when a 5dB fixed attenuation is required at frequencies up to 18 GHz. Consider the SMA in-line form factor for space-constrained PCB or panel mount applications. Evaluate the 2W power rating against peak and average signal levels. Verify compatibility with existing SMA infrastructure. Assess the need for military-grade reliability versus commercial alternatives based on environmental exposure.

Part Context

This component belongs to the M3933/25 series of fixed attenuators from Midwest Microwave. The series offers various attenuation values and frequency ranges tailored for RF applications. The M3933/25-68N specifically targets higher frequency operations up to 18 GHz compared to lower-frequency variants. It represents a standardized solution for signal level adjustment in professional RF circuits.

Replacement Considerations

Compatible substitutes include other M3933/25 series parts with matching 5dB attenuation and 18 GHz bandwidth. Verify connector type and power ratings before substitution. Check manufacturer datasheets for pinout and mechanical dimensions equivalence.