M3933/25-64S

Overview

The M3933/25-64S is a fixed RF attenuator manufactured by Amphenol SV Microwave, designed for high-frequency applications up to 18 GHz. It features SMA connectors with a male plug on one side and a female jack on the other, providing a nominal attenuation of 3 dB at a characteristic impedance of 50 Ohms. The device supports a maximum power rating of 2 W and operates within a temperature range of -65 °C to +165 °C. Constructed with stainless steel housing, it ensures durability in demanding environments.

Feature Summary

• Provides precise signal attenuation using SMA interface connections
• Operates reliably across extreme temperature ranges
• Features robust stainless steel construction for environmental resistance

Applications

• Military radio frequency systems
• Test and measurement instrumentation
• High-frequency communication equipment

Procurement Notes

Verify that the specific suffix 'S' denotes screened components as per official manufacturer documentation. Confirm that the part number matches the exact SMA male-to-female configuration and 3 dB attenuation value required for the circuit design. Ensure compatibility with the specified 50 Ohm impedance and 2 W power handling capabilities before procurement.

Selection Notes

Select this component when a fixed 3 dB attenuation is required within the 0 Hz to 18 GHz frequency band. Consider the SMA connector gender combination and the 50 Ohm impedance match. Evaluate the thermal operating limits and power rating against system requirements to ensure reliable performance under load conditions.

Part Context

This model belongs to the M3933 series of RF fixed attenuators from Amphenol SV Microwave. These components are engineered for military-grade reliability and high-frequency stability. The series offers various attenuation values and connector configurations to suit diverse RF system needs while maintaining consistent electrical performance.

Replacement Considerations

M3933/25-64N is listed as a parameter-equivalent substitute. Verify if the 'N' suffix indicates a non-screened variant or different material specification compared to the 'S' version to ensure functional equivalence.