M3933/25-61S

Overview

The M3933/25-61S is a screened SMA male-to-female RF attenuator manufactured by Amphenol SV Microwave. It operates within an 18 GHz frequency range with a 50 Ohm impedance. The component provides a maximum attenuation of 1.5 dB and supports a power rating of 2 W. It functions reliably between -65°C and +165°C, meeting MIL-Spec standards for military applications.

Feature Summary

• Screened construction for enhanced signal integrity
• MIL-Spec compliance for rugged environments
• SMA connector interface for standard integration

Applications

• Military communication systems
• Radar equipment testing
• Avionics signal conditioning

Procurement Notes

Verify the specific screening status and exact attenuation tolerance against the official datasheet before procurement. Confirm that the screened variant meets the electromagnetic interference requirements of the target system. Ensure compatibility with existing SMA interfaces in the assembly line.

Selection Notes

Select this model when screened shielding is required for high-frequency stability. Compare against non-screened variants if environmental protection is not critical. Verify temperature ratings align with operational extremes. Ensure the 1.5 dB attenuation value matches circuit design specifications precisely.

Part Context

This part belongs to the M3933 series of RF attenuators designed for military and aerospace use. It utilizes SMA connectors to provide precise signal reduction in high-frequency circuits. The series is known for durability and consistent performance under harsh conditions.

Replacement Considerations

Check for parameter-equivalent screened SMA attenuators from other manufacturers. Verify that any substitute maintains the same 1.5 dB attenuation and 18 GHz frequency limit. Ensure mechanical dimensions and screening requirements are identical.