M3933/25-30S

Overview

The M3933/25-30S is a coaxial RF attenuator manufactured by Amphenol SV Microwave, designed for high-frequency applications up to 18 GHz. It features SMA male-to-female connectors and maintains a characteristic impedance of 50 Ohms. The device provides a nominal attenuation value of 30 dB with a power rating of 2 W. Operating within a temperature range of -65°C to +165°C, it is classified as a screened MIL-Spec connectorized attenuator suitable for demanding military and aerospace environments.

Feature Summary

• Provides precise signal attenuation in the 18 GHz frequency range
• Features rugged SMA male-to-female interface configuration
• Designed for high-temperature operation up to +165°C
• Constructed as a screened unit meeting military specifications

Applications

• Military communication systems requiring signal level control
• Aerospace test and measurement instrumentation
• High-frequency radar system calibration
• Defense electronics signal conditioning

Procurement Notes

Verify the specific screening requirements against project documentation before ordering. Confirm that the SMA gender configuration matches the system interface needs. Ensure the thermal environment stays within the specified operating limits. Check for any updated datasheet revisions that may affect mechanical dimensions or electrical tolerances prior to final procurement approval.

Selection Notes

Select this component when a fixed 30 dB attenuation is required at frequencies up to 18 GHz. Consider the SMA interface compatibility with existing cabling infrastructure. Evaluate the 2 W power handling capability against peak signal levels. Verify that the screened construction meets the necessary electromagnetic interference mitigation standards for the intended application.

Part Context

This part belongs to the M3933 series of connectorized attenuators from Amphenol SV Microwave. These components are engineered to provide reliable signal reduction in RF circuits. The series includes various attenuation values and connector types, catering to diverse military and industrial RF design requirements.

Replacement Considerations

Direct substitutes include other M3933/25 variants with different attenuation values, such as M3933/25-31S (5 dB) or M3933/25-36S (10 dB), provided the attenuation requirement changes. Non-screened equivalents like the M3933/25-30N exist but lack the shielding characteristics.