M3933/16-21S

Overview

The M3933/16-21S is a screened RF attenuator manufactured by Amphenol SV Microwave, designed for military specifications. It operates within a frequency range of 0 Hz to 18 GHz and features SMA connectors with a female-to-male configuration. The component maintains a 50 Ohm impedance and provides a nominal attenuation of 4.5 dB. It supports a power rating of 2 W and functions reliably across an operating temperature range from -65 °C to +165 °C.

Feature Summary

• Provides fixed signal attenuation in high-frequency RF applications
• Constructed with SMA interface connectors for secure mating
• Designed to withstand extreme environmental temperatures

Applications

• Military communication systems requiring signal level control
• Test and measurement equipment calibration setups
• High-frequency circuit protection and signal conditioning

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to confirm screening levels and connector gender orientation. Ensure that the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity. Cross-reference the datasheet for any recent updates regarding material compliance or manufacturing changes before finalizing orders.

Selection Notes

Select this model when a precise 4.5 dB attenuation is required at frequencies up to 18 GHz. The SMA interface ensures compatibility with standard RF test gear and military interconnects. Consider the 2 W power handling capability and wide thermal range for deployment in demanding operational environments where signal integrity must be maintained under stress.

Part Context

This component belongs to the M3933 series of screened RF attenuators produced by Amphenol SV Microwave. The series adheres to military specifications, ensuring robust performance in defense and aerospace sectors. Similar models in the lineup offer varying attenuation values while maintaining consistent impedance and connector types for system interoperability.

Replacement Considerations

Direct substitutes include other M3933/16 series variants with different attenuation values, such as the M3933/16-05S or M3933/16-09S, provided the specific dB loss requirement can be adjusted. Verify that replacement parts maintain the same SMA female-to-male configuration and 50 Ohm impedance to ensure seamless integration.