M3933/25-75N

Overview

The M3933/25-75N is a fixed RF attenuator manufactured by Amphenol SV Microwave, designed for high-frequency applications. It features SMA male-to-female connectors and operates within a frequency range of DC to 18 GHz. The component provides an attenuation value of 8.5 dB at a characteristic impedance of 50 Ohms. It is rated for a maximum power handling capacity of 2 Watts. The unit is constructed as a bulk module suitable for non-screened environments, with an operating temperature range typically spanning from -65°C to +165°C.

Feature Summary

• Provides precise 8.5 dB signal attenuation in a compact coaxial format
• Supports operation up to 18 GHz with stable 50 Ohm impedance
• Features robust SMA male-to-female interface for reliable connectivity

Applications

• RF test and measurement instrumentation
• Microwave communication systems requiring signal reduction
• Military and aerospace electronic subsystems

Procurement Notes

Verify the specific datasheet version for the M3933/25-75N to confirm exact electrical tolerances and mechanical dimensions. Ensure compatibility with existing SMA interfaces and check environmental ratings against operational requirements. Confirm manufacturer specifications regarding power handling and frequency response before integration into final designs.

Selection Notes

Select this model when an 8.5 dB attenuation value is required within the 18 GHz bandwidth. Consider the SMA connector type for mating compatibility and verify that the 2W power rating meets system thermal constraints. Evaluate the non-screened construction against shielding needs for the specific application environment.

Part Context

This component belongs to the M3933 series of RF attenuators from Amphenol SV Microwave. These parts are engineered for military and industrial standards, offering consistent performance across wide frequency ranges. The series utilizes precision manufacturing to maintain impedance stability and low VSWR, ensuring signal integrity in demanding RF circuits.

Replacement Considerations

M3933/25-64N (3dB), M3933/25-31N (5dB). Verify attenuation values match design requirements before substitution.