M3933/25-04S

Overview

The M3933/25-04S is a fixed 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 50 Ohm impedance. The component provides a nominal attenuation of 4 dB with a power rating of 2 W. It operates within a temperature range of -65°C to +165°C and is classified as a screened MIL-Spec connector.

Feature Summary

• Provides fixed signal attenuation in a ruggedized military specification form factor
• Utilizes SMA interface geometry for reliable high-frequency connectivity
• Engineered for operation in extreme thermal environments

Applications

• Military radar systems requiring precise signal level control
• Avionics test and measurement equipment
• Satellite communication ground stations

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm screening levels and exact electrical tolerances. Ensure compatibility with existing SMA mating interfaces and validate thermal management requirements for the intended operating environment before finalizing procurement orders.

Selection Notes

Select this model when a fixed 4 dB attenuation value is required within the 18 GHz frequency band. Consider the 2 W power handling capability and the extended temperature range suitability for harsh environments. Confirm that the SMA gender configuration matches the system interconnect requirements.

Part Context

This component belongs to the M3933 series of RF attenuators from Amphenol SV Microwave. The series offers various attenuation values while maintaining consistent SMA interface standards and MIL-Spec reliability characteristics suitable for defense and aerospace electronic systems.

Replacement Considerations

M3933/25-04N is listed as a parameter equivalent substitute.