M3933/25-20N

Overview

The M3933/25-20N is a coaxial attenuator manufactured by Amphenol SV Microwave, designed for high-frequency applications. It features SMA connectors with a male-to-female configuration and maintains a characteristic impedance of 50 Ohms. The device provides a fixed attenuation value of 20 dB across a frequency range extending up to 18 GHz. It is rated for a maximum power handling capacity of 2 Watts and operates within a temperature range from -65°C to +165°C. The unit is supplied in bulk packaging.

Feature Summary

• Provides precise signal reduction via a fixed 20 dB attenuation profile
• Supports broadband operation up to 18 GHz using standard SMA interfaces
• Engineered for extreme thermal environments with a wide operating temperature span

Applications

• RF test and measurement instrumentation requiring calibrated signal levels
• Military and aerospace communication systems demanding rugged reliability
• High-frequency circuit testing and characterization setups

Procurement Notes

Verify the specific datasheet version for the M3933/25-20N to confirm current manufacturing status and compliance certifications. Ensure that the SMA connector gender and mating interface requirements align with existing system hardware. Cross-reference the 2W power rating against peak operational loads to prevent thermal degradation. Confirm that the bulk packaging format meets storage and handling protocols for sensitive RF components.

Selection Notes

Select this component when a fixed 20 dB loss is required within an 18 GHz bandwidth. The SMA interface ensures compatibility with standard laboratory and field equipment. Consider the 2W power limit for high-power transmission lines. The extended temperature range supports deployment in harsh environmental conditions where standard commercial parts may fail.

Part Context

This part belongs to the M3933 series of connectorized attenuators from Amphenol SV Microwave. These components are classified as RF military specification connectors, indicating adherence to rigorous durability and performance standards. The series offers various attenuation values and connector types, positioning this model as a specialized solution for precise signal management in demanding RF architectures.

Replacement Considerations

M3933/25-20S is a parameter-equivalent screened variant. Verify if shielding requirements differ between unshielded (N suffix) and screened (S suffix) versions for the specific application environment.