M3933/25-73S

Overview

The M3933/25-73S is a screened QPL fixed attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides a nominal attenuation of 7.5 dB with a tolerance of ±0.4 dB. The device operates within a frequency range of 0 Hz to 18 GHz and features an SMA connector interface. It supports a maximum power rating of 2 W and maintains a 50 Ohm impedance. The unit is designed for operation between -55°C and +125°C.

Feature Summary

• Complies with MIL-DTL-M3933 military specifications for qualified parts list (QPL) screening
• Provides precise 7.5 dB signal attenuation with tight tolerance control
• Operates across a wide DC to 18 GHz bandwidth using SMA connectors

Applications

• Military RF signal chain calibration
• Test and measurement equipment attenuation stages
• Aviation communication system signal conditioning

Procurement Notes

Verify the specific suffix designation against the manufacturer's current datasheet to confirm exact screening levels and tolerance grades. Ensure compatibility with MIL-DTL-M3933 requirements for your application. Confirm that the SMA connector gender matches your system interconnect needs before ordering.

Selection Notes

Select this component when a fixed 7.5 dB loss is required in high-frequency applications up to 18 GHz. Consider the 2W power handling capability for your signal levels. Verify environmental temperature ratings align with operational extremes. Compare against other values in the M3933/25 series if different attenuation is needed.

Part Context

This part belongs to the M3933/25 series of connectorized attenuators from Cinch Connectivity Solutions. The series offers various attenuation values while maintaining consistent electrical performance and rugged construction suitable for demanding environments. It represents a standardized solution for reliable RF signal management.

Replacement Considerations

Check for direct equivalents within the M3933/25 series offering similar attenuation values. Verify that any substitute meets the same MIL-DTL-M3933 qualification standards. Ensure frequency range and power handling capabilities are equal or superior to the original specification.