M3933/25-59N

Overview

The M3933/25-59N is a screened SMA in-line RF attenuator manufactured by Cinch Connectivity Solutions under the Midwest Microwave brand. It provides a fixed attenuation of 0.5 dB with a nominal impedance of 50 Ohms. The component operates across a frequency range from 0 Hz to 18 GHz and supports a maximum power dissipation of 2 Watts. Designed for rugged environments, it functions within an operating temperature range of -55°C to +125°C. This part is classified as a QPL (Qualified Products List) screened connectorized attenuator.

Feature Summary

• Screened construction compliant with Qualified Products List (QPL) standards
• SMA male-to-female in-line module configuration
• Fixed 0.5 dB attenuation value for precise signal control
• Wide operational frequency bandwidth extending to 18 GHz

Applications

• Military and aerospace RF signal conditioning systems
• High-reliability communication equipment requiring screened components
• Test and measurement instrumentation interfaces
• Defense radar and electronic warfare subsystems

Procurement Notes

Verify that the specific order includes the 'N' suffix designation, which indicates the screened variant required for QPL compliance. Confirm that the procurement documentation explicitly references the Midwest Microwave screening requirements. Ensure the receiving inspection aligns with military-grade quality standards. Request full traceability data sheets upon delivery. Validate that the package matches the SMA in-line module form factor specified for this part number.

Selection Notes

Select this model when a low-loss 0.5 dB attenuation is required in high-frequency applications up to 18 GHz. It is suitable for systems demanding 2W power handling and extreme temperature resilience. Choose this screened version specifically for military or aerospace projects mandating QPL-listed components. Ensure the SMA interface compatibility matches the system's existing male and female connector requirements.

Part Context

This component belongs to the M3933 series of connectorized attenuators, designed for robust RF performance. It represents a specialized screened product line intended for critical infrastructure where standard commercial parts are insufficient. The part integrates precision attenuation into a durable coaxial housing, serving as a bridge between standard interconnects and high-performance signal processing needs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.