M3933/30-29N

Overview

The M3933/30-29N is a fixed RF attenuator manufactured by Amphenol SV Microwave, designed for high-frequency applications within the military specification framework. This component utilizes SMA male-to-female connectors and operates at a characteristic impedance of 50 Ohms. It provides a nominal attenuation value of 16 dB across a frequency range extending from 0 Hz to 32 GHz. The device is rated for a maximum power handling capacity of 2 Watts and functions reliably within an operating temperature range of -65°C to +165°C. Packaged in bulk, this non-screened unit serves as a precision inline module for signal level control.

Feature Summary

• Provides precise 16 dB signal attenuation for RF circuitry
• Supports operation up to 32 GHz frequency range
• Features robust SMA male-to-female connector interface
• Rated for 2W power handling in demanding environments

Applications

• Military radar systems requiring stable signal reduction
• Test and measurement equipment calibration setups
• High-frequency communication infrastructure modules
• Aerospace electronic subsystems with strict thermal requirements

Procurement Notes

Verify the specific suffix 'N' denotes the non-screened variant when sourcing replacements or ordering. Confirm that the SMA gender configuration matches the intended circuit topology, as male-to-female interfaces are distinct from other combinations. Ensure the selected distributor sources genuine Amphenol SV Microwave components to guarantee compliance with the specified 32 GHz performance limits and 165°C thermal rating. Cross-reference datasheet revisions for any updates to mechanical dimensions or material specifications prior to final integration.

Selection Notes

Select this component when a fixed 16 dB loss is required in SMA-based transmission lines operating above standard microwave frequencies. The wide temperature range makes it suitable for harsh environment deployments where standard commercial parts may fail. Consider the non-screened construction if shielding is provided by the host enclosure. Verify that the 2W power rating aligns with peak signal levels to prevent thermal damage during continuous operation.

Part Context

This part belongs to the M3933 series of RF attenuators, which are engineered to meet rigorous military standards for reliability and performance. The series offers various attenuation values and connector types, allowing engineers to customize signal paths in complex RF architectures. As a specialized component from Amphenol SV Microwave, it integrates into broader systems requiring precise amplitude control without introducing significant phase distortion or reflection.

Replacement Considerations

M3933/30-29S is a parameter-equivalent screened variant offered by the same manufacturer. When substituting, verify that the screening requirement does not conflict with existing thermal or electromagnetic interference constraints. Other generic SMA attenuators may match the electrical specs but likely lack the specific military qualification and extended temperature range certified for this model.