391-020-556-208

Edgeboard Connectors Overview

The EDAC Inc. 391-020-556-208 is a dual-edge female card edge connector from the 391 series, designed for through-hole mounting. It features 20 positions with a 0.100" (2.54mm) pitch and supports board thicknesses of 0.054" to 0.070" (1.37mm to 1.78mm). The contacts are gold-plated copper alloy, ensuring reliable signal transmission. Operating within a temperature range of -40°C to 105°C, it includes flush mount flanges with top opening and threaded inserts for secure panel installation.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for robust board connection
• Flush mount flanges with top opening and threaded inserts
• Gold-plated copper alloy contacts for durability
• Through-hole termination for stable PCB integration

Edgeboard Connectors Applications

• Industrial control systems requiring secure I/O connections
• Telecommunications equipment backplanes
• Medical instrumentation modules
• Automotive electronic control units

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required flange configuration and contact plating thickness. Confirm compatibility with the target printed circuit board thickness range of 1.37mm to 1.78mm. Ensure the mounting hole pattern aligns with the 4-40 threaded insert specifications provided in the official datasheet before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge interface is required for high-reliability applications. The 391 series offers versatile mounting options including flush mount designs. Consider the operating temperature range and contact material if environmental conditions exceed standard industrial limits. Verify pin count and pitch requirements against system design specifications.

Edgeboard Connectors Part Context

This part belongs to the EDAC 391 series of edgeboard connectors, which provides various mounting styles and contact configurations. The series is known for supporting both single and dual-edge connections with multiple flange options. It serves as a standard interconnect solution for modular electronic systems requiring durable and repeatable mating cycles.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pin counts and pitch but different mounting features. Verify mechanical dimensions and electrical ratings before substitution. Cross-reference with other EDAC series only if form factor constraints allow.