M3933/25-53S

Overview

The M3933/25-53S is a screened QPL attenuator manufactured by Cinch Connectivity Solutions under the Midwest Microwave brand. It features SMA connectors and operates within a frequency range of 0 Hz to 12.4 GHz. The component provides a nominal attenuation value of 5 dB with a 50 Ohm impedance. It supports a maximum power rating of 2 W and functions reliably across an operating temperature range from -55 °C to +125 °C.

Feature Summary

• Screened QPL compliance for military-grade reliability
• SMA in-line module connector interface
• Wide operational temperature stability

Applications

• Military communication systems
• Aerospace RF signal conditioning
• Defense electronic warfare equipment

Procurement Notes

Verify that the specific order includes the 'S' suffix, which denotes the screened version required for QPL compliance. Confirm that the procurement documentation explicitly references MIL-DTL-3933 standards. Ensure the supplier provides traceability certificates matching the screened batch requirements. Check for any specific handling instructions related to the screened finish during storage and installation.

Selection Notes

Select this model when a fixed 5 dB attenuation is required at frequencies up to 12.4 GHz. The SMA inline design suits applications needing direct circuit integration without additional adapters. Consider the 2 W power rating for high-power RF environments. Verify that the screened variant meets the specific environmental protection needs of the target deployment.

Part Context

This part belongs to the M3933/25 series of connectorized attenuators. It shares the same form factor and electrical baseline as other variants in the family, differing primarily in attenuation value and screening status. The series is designed for ruggedized applications requiring consistent performance in harsh conditions.

Replacement Considerations

M3933/25-53N serves as a non-screened alternative with identical electrical specifications.