M3933/25-12N

Overview

The M3933/25-12N is a fixed RF attenuator manufactured by Cinch Connectivity Solutions under the Midwest Microwave brand. This component provides a nominal attenuation of 12 dB within a frequency range of 0 Hz to 2 GHz. It features SMA connectors and is rated for 2 W of power handling. The unit operates within a temperature range of -55 °C to +125 °C and maintains a 50 Ohm impedance. Designed as an in-line module, it complies with MIL-DTL-M3933 standards for military-grade reliability.

Feature Summary

• Complies with MIL-DTL-M3933 specifications for defense applications
• Provides stable 12 dB signal attenuation across DC to 2 GHz
• Supports high power handling up to 2 Watts
• Operates reliably in extreme temperatures from -55 °C to +125 °C

Applications

• Military communication systems requiring precise signal reduction
• Aerospace electronic test and measurement equipment
• Defense radar and navigation subsystems
• Harsh environment RF circuit protection

Procurement Notes

Verify that the specific part number matches the required 12 dB attenuation value and 2 GHz frequency limit, as the M3933/25 series includes variants with different attenuation levels and bandwidths. Confirm compliance with MIL-DTL-M3933 requirements for your application. Check RoHS status, as this component may not be compliant. Ensure connector gender and interface type match system design before ordering.

Selection Notes

Select this model when a fixed 12 dB loss is necessary between 0 Hz and 2 GHz. Consider higher frequency variants like the M3933/25-62N if operation extends beyond 2 GHz. Evaluate thermal management needs given the 2W rating. Compare against adjustable attenuators if variable control is required instead of a fixed value.

Part Context

This component belongs to the M3933/25 family of connectorized attenuators from Cinch Connectivity Solutions. These parts are designed for rugged environments and meet strict military standards. The series offers various attenuation values and frequency ranges to suit different RF system architectures.

Replacement Considerations

M3933/25-12S is the screened version of this component.