M3933/16-31S

Overview

The M3933/16-31S is a fixed RF attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It features SMA connectors and provides a nominal attenuation of 12.5 dB. The device operates within a frequency range of 0 Hz to 18 GHz and has a power rating of 2 W. It is designed for a characteristic impedance of 50 Ohms. The unit complies with MIL-DTL-M3933 standards and is qualified under QPL (Qualified Products List) screening requirements.

Feature Summary

• Complies with MIL-DTL-M3933 military specifications
• Features SMA in-line module construction
• Supports frequencies up to 18 GHz
• Undergoes QPL screening processes

Applications

• Military radar systems
• Avionics signal conditioning
• Defense communication equipment
• Test and measurement instrumentation

Procurement Notes

Verify that the specific order requires QPL screening, as this component is designated for qualified products list applications. Confirm compliance with MIL-DTL-M3933 standards during procurement. Check RoHS status, as these components are typically non-compliant. Ensure the SMA connector type matches system interface requirements before finalizing the purchase order.

Selection Notes

Select this model when a 12.5 dB attenuation value is required at 18 GHz. Consider the 2 W power rating for high-power signal paths. Verify the SMA interface compatibility with existing circuitry. Evaluate the need for military-grade screening versus commercial alternatives based on operational environment requirements.

Part Context

This part belongs to the M3933 series of connectorized attenuators. It utilizes an in-line module design suitable for coaxial transmission lines. The product line includes various attenuation values and frequency ranges. This specific model targets defense and aerospace applications requiring reliable signal reduction.

Replacement Considerations

Check for other M3933/16 variants with different attenuation values if 12.5 dB is not suitable. Verify SMA connector gender and mating compatibility. Ensure replacement parts meet the same MIL-DTL-M3933 qualification standards.