M3933/16-30S

Overview

The M3933/16-30S is a fixed RF attenuator manufactured by Cinch Connectivity Solutions under the Midwest Microwave brand. It utilizes SMA connectors and operates within a frequency range of DC to 18 GHz. The component provides a nominal attenuation value of 30 dB with a power rating of 2 watts. Designed for rugged environments, it supports operating temperatures from -55°C to +125°C. This part belongs to the MIL-STD-M3933 series, indicating compliance with military standards for reliability in demanding applications.

Feature Summary

• Military-grade construction compliant with MIL-STD-M3933 specifications
• High-frequency operation up to 18 GHz using SMA interfaces
• Robust thermal performance suitable for extreme temperature ranges
• Fixed attenuation design ensuring stable signal reduction

Applications

• Defense electronic systems requiring reliable signal attenuation
• Aerospace communication equipment testing and integration
• Harsh environment radio frequency circuit protection
• Military radar system signal conditioning

Procurement Notes

Verify that the specific suffix 'S' corresponds to the screened variant required for your application, as this designation often indicates specific shielding or environmental testing compliance distinct from other variants. Confirm that the SMA connector gender matches your system interface requirements before ordering. Ensure that the 2-watt power rating aligns with your peak signal levels to prevent component damage. Cross-reference the manufacturer's current datasheet to confirm any updates to the MIL-STD-M3933 specification or material composition changes.

Selection Notes

Select this component when a precise 30 dB attenuation is required at frequencies extending to 18 GHz. Consider the SMA interface compatibility with existing PCB or cable assemblies. Evaluate the 2-watt power handling capability against maximum input signals. The wide temperature range makes it suitable for outdoor or uncontrolled environment deployments where standard commercial parts would fail.

Part Context

This model is part of the broader M3933 family of connectorized attenuators produced by Midwest Microwave, a division of Cinch Connectivity Solutions. The family includes various attenuation values and frequency ranges, all sharing similar ruggedized construction methods. These components are designed to replace older military-specification parts while maintaining form, fit, and function compatibility with legacy systems.

Replacement Considerations

Direct replacements include other manufacturers' MIL-STD-M3933/16 equivalents offering 30 dB attenuation and SMA interfaces. Verify that substitute parts meet the same 18 GHz frequency limit and 2-watt power rating. Check for identical mounting configurations and connector gender to ensure seamless integration without mechanical modification.