M3933/25-03S

Overview

The M3933/25-03S is a fixed RF attenuator manufactured by Amphenol SV Microwave, designed for military specifications. It features SMA male to female connectors and operates within a frequency range of DC to 18 GHz. The component provides a nominal attenuation of 3 dB with a 50 Ohm impedance. It supports a maximum power rating of 2 W and functions reliably across an operating temperature range of -65 °C to +165 °C.

Feature Summary

• Military-grade construction compliant with MIL-Spec standards
• Fixed 3 dB attenuation for precise signal level control
• Wide operational bandwidth extending from DC to 18 GHz
• High-temperature stability suitable for extreme environments

Applications

• Satellite microwave circuit power leveling
• RF test and measurement instrumentation
• Defense communication systems
• Aerospace electronic subsystems

Procurement Notes

Verify the specific suffix 'S' indicates screened configuration against official datasheets. Confirm connector gender polarity matches system requirements. Validate thermal ratings for high-power applications. Ensure environmental sealing meets mission parameters. Cross-reference part numbers with authorized distributor catalogs.

Selection Notes

Select this model when fixed 3 dB attenuation is required in the 18 GHz band. Consider SMA interface compatibility with existing infrastructure. Evaluate power handling limits relative to system peak levels. Assess temperature range suitability for deployment conditions. Compare against alternative series for impedance matching needs.

Part Context

This component belongs to the M3933 series of connectorized attenuators. It utilizes SMA interfaces for standard RF connectivity. The design targets rugged applications requiring stable performance. Amphenol SV Microwave produces this line for defense and aerospace sectors. The series offers various attenuation values and frequency ranges.

Replacement Considerations

M3933/25-03N serves as a non-screened equivalent variant.