M3933/25-79S

Overview

The M3933/25-79S is a screened QPL fixed attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides an attenuation value of 11 dB with a power rating of 2 W. The device operates within a frequency range of 0 Hz to 18 GHz and maintains a 50 Ohm impedance. It utilizes SMA connectors in an inline module configuration. The component supports a temperature range from -55°C to +125°C and complies with MIL-DTL-M3933 standards.

Feature Summary

• Screened QPL compliance for military-grade reliability
• Fixed 11 dB attenuation performance
• Wideband operation up to 18 GHz

Applications

• Military RF signal conditioning
• Aerospace communication systems
• Test and measurement equipment calibration

Procurement Notes

Verify the specific suffix designation against the official manufacturer datasheet to confirm connector gender and screening level. Ensure the procurement channel sources units directly from Cinch Connectivity Solutions or authorized distributors to guarantee authenticity and traceability required for QPL specifications.

Selection Notes

Select this model when a fixed 11 dB reduction is required in high-frequency applications up to 18 GHz. Consider the 2 W power handling capability and the robust operating temperature range for harsh environments. Confirm that the SMA interface matches the system interconnect requirements before integration.

Part Context

This part belongs to the M3933/25 series of connectorized attenuators designed for defense and aerospace sectors. The series offers various attenuation values while maintaining consistent electrical performance and mechanical durability. The M3933/25-79S specifically addresses needs for precise signal level adjustment in critical RF pathways.

Replacement Considerations

M3933/25-69S (5.5 dB), M3933/25-30S (4 dB). Verify attenuation value compatibility.