M3933/25-20S

Overview

The M3933/25-20S is a fixed RF attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides a nominal attenuation of 20 dB with a 50 Ohm impedance. The device utilizes SMA connectors and supports a frequency range from 0 Hz to 2 GHz. It has a power rating of 2 W and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Compliant with MIL-DTL-M3933 military specifications for qualified parts list (QPL) components.
• Designed for high-reliability applications requiring stable signal attenuation in harsh environments.

Applications

• Military radar systems
• Avionics signal processing
• Test and measurement instrumentation

Procurement Notes

Verify the specific suffix 'S' indicates screened QPL status per manufacturer documentation. Confirm that the SMA connector gender matches system requirements, as male/female configurations vary. Ensure environmental compliance checks align with project constraints, noting potential RoHS exemptions for military-grade hardware.

Selection Notes

Select this component when a precise 20 dB attenuation is required at frequencies up to 2 GHz. Consider the 2 W power handling capability for high-power signal paths. Verify compatibility with existing SMA interfaces and ensure the operating temperature range meets the deployment environment's thermal specifications.

Part Context

This part belongs to the M3933/25 series of connectorized attenuators. It is designed to meet strict military standards for reliability and performance. The series offers various attenuation values while maintaining consistent impedance and connector types across the family.

Replacement Considerations

Direct substitutes include other M3933/25 series variants with matching attenuation values. Cross-reference MIL-DTL-M3933 equivalents from authorized manufacturers to ensure identical electrical and mechanical specifications are maintained.