SME 125 B 3 T 6

Overview

The SME 125 B 3 T 6 is a miniature coaxial connector from TE Connectivity's SME series, designed for high-frequency applications in aerospace and defense environments. It features a 50-ohm impedance and operates up to 18 GHz. The connector utilizes a precision-machined interface with gold-plated contacts to ensure reliable signal transmission. Its compact form factor supports space-constrained installations while maintaining structural integrity under vibration and shock conditions typical of military and avionics systems.

Feature Summary

• Miniature coaxial design optimized for high-density interconnects
• Gold-plated contact surfaces for enhanced conductivity and corrosion resistance
• Precision mechanical interface ensuring consistent electrical performance
• Robust construction suitable for harsh environmental conditions

Applications

• Avionics communication systems
• Radar signal processing interfaces
• Electronic warfare equipment
• Satellite ground station components

Procurement Notes

Verify the specific suffix codes against the manufacturer's current datasheet to confirm material specifications and plating options. Ensure compatibility with mating connectors regarding keying and alignment features. Confirm environmental sealing requirements if used in exposed installations. Request certification documents for traceability in regulated aerospace supply chains.

Selection Notes

Select this component when space constraints require a miniature form factor without sacrificing high-frequency performance. Consider the operating temperature range and vibration tolerance relative to the target application environment. Evaluate mating connector availability and cable assembly compatibility before finalizing the design integration.

Part Context

This part belongs to the SME series of miniature coaxial connectors, which are widely used in RF and microwave applications. The series is known for its small size and ability to maintain signal integrity at frequencies up to 18 GHz. It is commonly specified in defense and aerospace sectors where reliability and miniaturization are critical.

Replacement Considerations

Check for direct cross-reference part numbers from other manufacturers offering equivalent SMA or SMB variants. Verify dimensional tolerances and contact geometry match exactly to avoid assembly issues. Ensure frequency response and impedance characteristics align with system requirements.

FAQ

What is the maximum operating frequency for this connector?

The SME 125 B 3 T 6 is rated for operation up to 18 GHz.

Is this connector compatible with standard SMA cables?

Yes, it is mechanically and electrically compatible with standard SMA interfaces.