M3933/25-87S

Overview

The M3933/25-87S is a screened RF fixed attenuator manufactured by Amphenol SV Microwave. It features SMA male-to-female connectors and provides a nominal attenuation of 19 dB. The component operates within a frequency range of DC to 18 GHz with a characteristic impedance of 50 ohms. It supports a maximum power rating of 2 W and functions reliably between -65 °C and +165 °C.

Feature Summary

• Screened construction for enhanced environmental protection
• Military specification compliance via QPL listing
• Stainless steel housing for durability

Applications

• Defense communication systems
• Aerospace radar equipment
• High-frequency test instrumentation

Procurement Notes

Verify the specific suffix 'S' indicates screened configuration and QPL status. Confirm that the 19 dB attenuation value matches the design requirement. Ensure the SMA connector gender combination aligns with system interface needs. Validate temperature ratings against operational extremes.

Selection Notes

Select this model when high reliability in harsh environments is required. The screened variant offers superior shielding compared to non-screened versions. Consider the 2 W power handling limit for signal chain placement. Verify compatibility with existing SMA infrastructure.

Part Context

This part belongs to the M3933 series of military-grade RF attenuators. It utilizes standard SMA interfaces for broad interoperability. The product line is designed for applications requiring precise signal reduction in critical systems.

Replacement Considerations

M3933/25-87N serves as a non-screened alternative with identical electrical specifications but different environmental protection.