857-042-540-207

Edgeboard Connectors Overview

The EDAC Inc. 857-042-540-207 is a high-temperature card edge connector from the 857 series, designed for dual-edge board applications. It features 42 positions with a 0.156-inch (3.96mm) spacing and gold-plated contacts. The connector utilizes a female terminal configuration with a black thermoplastic insulator. Key mechanical specifications include a flush mount flange feature with top opening and threaded inserts, specifically M3 size. The unit supports through-hole termination methods and operates within a temperature range of -55°C to +125°C, ensuring reliability in demanding thermal environments.

Edgeboard Connectors Feature Summary

• High-temperature rated construction suitable for rigorous operational conditions
• Dual-edge female contact design for secure board insertion
• Flush mount flange with top opening and threaded insert provisions

Edgeboard Connectors Applications

• Industrial control systems requiring thermal stability
• Telecommunications equipment interfaces
• Aerospace and defense electronic assemblies

Edgeboard Connectors Procurement Notes

Verify the specific thread size and mounting hole dimensions against the mechanical drawing before procurement. Confirm that the dual-edge requirement aligns with the target PCB design. Ensure the operating environment temperature does not exceed the specified maximum limit. Check for any specific RoHS or compliance requirements relevant to the final assembly.

Edgeboard Connectors Selection Notes

Select this component when dual-edge connectivity with high thermal resistance is required. The 0.156-inch pitch offers robust spacing for high-current or high-voltage signals compared to finer pitches. Consider the threaded mount option if vibration resistance is critical. Evaluate the physical height constraints to ensure compatibility with the enclosure design.

Edgeboard Connectors Part Context

This part belongs to the EDAC 857 Series, which specializes in high-temperature card edge connectors. The series is engineered for durability in harsh environments where standard connectors might fail due to heat stress. The 857 series typically features robust insulators and reliable contact plating to maintain signal integrity over extended service life in industrial and military applications.

Edgeboard Connectors Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. When seeking alternatives, prioritize connectors with identical 0.156-inch pitch, dual-edge female configuration, and matching thermal ratings. Verify mechanical footprint compatibility, particularly regarding the threaded insert locations and overall housing dimensions.