M3933/25-66S

Overview

The M3933/25-66S is a screened RF attenuator manufactured by Amphenol SV Microwave. It utilizes SMA connectors with a male-to-female configuration and maintains a 50 Ohm impedance. The component operates within a frequency range of DC to 18 GHz, providing a maximum attenuation of 16 dB. Designed for high-reliability environments, it supports a power rating of 2 W and functions across a temperature range of -65°C to +165°C.

Feature Summary

• Screened construction for enhanced environmental protection
• SMA connector interface ensuring reliable signal transmission
• High-temperature capability suitable for demanding applications

Applications

• Military radio systems
• Aviation communication equipment
• Test and measurement instrumentation

Procurement Notes

Verify the specific screening requirements against project specifications before procurement. Confirm that the SMA male-to-female orientation matches the system interconnect needs. Ensure the 16 dB attenuation value aligns with the circuit design requirements. Check compatibility with the specified operating temperature range for the intended environment.

Selection Notes

Select this model when a fixed 16 dB attenuation is required in an SMA form factor. Consider the screened variant if environmental shielding is necessary. Evaluate the 18 GHz frequency limit against the system's operational bandwidth. Assess the thermal performance capabilities relative to the installation location.

Part Context

This component belongs to the M3933 series of RF attenuators from Amphenol SV Microwave. The series includes various attenuation values and connector configurations. The M3933/25-66S specifically addresses the need for precise signal reduction in high-frequency applications using standard SMA interfaces.

Replacement Considerations

M3933/25-66N is a parameter-equivalent alternative available from the same manufacturer.