M3933/25-81N

Overview

The M3933/25-81N is an RF fixed attenuator manufactured by Amphenol SV Microwave, designed for high-frequency applications up to 18 GHz. It features a 50 Ohm impedance and supports a power rating of 2 Watts. The device utilizes SMA connectors with a male plug on one side and a female jack on the other, providing a precise attenuation value of 13 dB. Constructed as an in-line module, it operates within a frequency range of DC to 18 GHz, ensuring signal integrity in demanding environments.

Feature Summary

• Provides fixed 13 dB attenuation for signal level control
• Operates reliably from DC up to 18 GHz frequency range
• Features SMA male-to-female connector interface configuration
• Supports 2 Watt power handling capacity

Applications

• RF test and measurement instrumentation
• Military and aerospace communication systems
• Wireless infrastructure signal conditioning
• High-frequency circuit prototyping and development

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to confirm exact specifications. Ensure compatibility with system impedance requirements before procurement. Cross-reference datasheets for environmental ratings and connector gender details to prevent integration errors during component selection.

Selection Notes

Select this component when a fixed 13 dB reduction is required at frequencies up to 18 GHz. Consider the SMA interface compatibility with existing board layouts. Evaluate the 2W power rating against peak signal levels. Confirm that the in-line module form factor fits within the available physical space constraints of the assembly.

Part Context

This model belongs to the M3933 series of RF attenuators from Amphenol SV Microwave. The series offers various attenuation values while maintaining consistent SMA connectivity and 50 Ohm impedance standards. These components are engineered for stability and precision in microwave and millimeter-wave applications requiring reliable signal attenuation.

Replacement Considerations

M3933/25-81S serves as a screened variant of this component. Verify if shielding requirements dictate the use of the 'S' suffix version over the standard 'N' designation. Ensure mechanical and electrical parameters remain identical when substituting between these variants.