M3933/25-26N

Overview

The M3933/25-26N is a coaxial connector assembly manufactured by Cinch Connectivity Solutions Midwest Microwave. It belongs to the MIL-DTL-38999 Series III family, designed for high-reliability applications in harsh environments. The component features a hermetically sealed construction with a nickel-plated aluminum alloy shell and stainless steel contacts. It supports frequencies up to 18 GHz with low insertion loss and high VSWR performance. The connector utilizes a crimp termination method for both center and outer conductors, ensuring secure electrical connections.

Feature Summary

• Hermetically sealed design for environmental protection
• High-frequency capability up to 18 GHz
• Crimp termination for reliable signal integrity
• Compatible with MIL-DTL-38999 Series III sockets

Applications

• Aerospace avionics systems
• Military radar equipment
• Communication satellites
• Electronic warfare systems

Procurement Notes

Verify part number suffixes carefully as they denote specific contact types, shell sizes, and mounting styles. Ensure compatibility with mating receptacles from the same series. Confirm environmental sealing requirements match application needs. Check for RoHS compliance if required by project specifications. Validate that the crimp tooling matches the contact size specified in the datasheet.

Selection Notes

Select based on frequency range requirements and physical interface constraints. Consider the operating temperature range and vibration resistance for the intended environment. Verify that the cable diameter matches the crimp contact specifications. Evaluate shielding effectiveness needs for electromagnetic interference protection. Confirm installation space limitations for bulkhead or panel mount configurations.

Part Context

This component is part of the extensive MIL-DTL-38999 connector portfolio offered by Cinch Connectivity Solutions. The series is widely recognized for its compact size and high density compared to previous generations. Midwest Microwave specializes in microwave interconnect solutions within this framework. The product line supports various industries requiring robust RF connectivity.

Replacement Considerations

Direct replacements must adhere to MIL-DTL-38999 Series III specifications. Compatible alternatives include connectors from Amphenol, ITT Cannon, and LEMO that meet the same dimensional and electrical standards. Verify pin-out configurations and coupling nut styles before substitution. Ensure environmental sealing ratings are equivalent or superior.