M3933/25-63S

Overview

The M3933/25-63S is a screened QPL attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It features SMA connectors and provides a fixed attenuation of 2.5 dB. The device operates within a frequency range of 0 Hz to 18 GHz, with a maximum power dissipation rating of 2 W. It maintains a 50 Ohm impedance and functions reliably between -55°C and +125°C.

Feature Summary

• Complies with MIL-DTL-M3933 military specifications for qualified products list (QPL) screening
• Provides fixed 2.5 dB RF signal attenuation in an inline module configuration
• Supports high-frequency operation up to 18 GHz with SMA interface connections

Applications

• Military radar systems requiring precise signal level control
• Avionics test and measurement equipment
• Defense communication subsystems needing screened components
• High-reliability aerospace electronic circuits

Procurement Notes

Verify that the specific part number includes the 'S' suffix, which denotes the screened variant required for QPL compliance. Confirm that the procurement order explicitly references MIL-DTL-M3933 standards to ensure the component meets the necessary military qualification requirements for defense applications. Ensure documentation matches the manufacturer's official screening criteria.

Selection Notes

Select this model when a fixed 2.5 dB attenuation value is required for frequencies extending up to 18 GHz. The SMA connector type dictates mating compatibility with existing system interfaces. Consider the 2 W power handling capability against expected signal levels. The screened QPL status is mandatory for projects adhering to strict military reliability standards.

Part Context

This component belongs to the M3933/25 series of connectorized attenuators from Cinch Connectivity Solutions Midwest Microwave. The series offers various attenuation values while maintaining consistent SMA interfaces and military-grade construction. This specific variant is distinguished by its 2.5 dB attenuation specification and screened manufacturing process.

Replacement Considerations

M3933/25-62N provides 2 dB attenuation. M3933/25-68N provides 3 dB attenuation. Verify exact attenuation tolerance and screening requirements before substitution.