302-070-321-201

Edgeboard Connectors Overview

The EDAC Inc. 302-070-321-201 is a dual-edge card edge connector from the 302 Series, designed for board-edge mounting. It features 70 positions with female contacts and a 0.050" (1.27mm) pitch. The connector utilizes gold-plated cantilever spring contacts made of copper alloy, housed in a black polyamide (PA66) body. It supports PCB thicknesses between 0.051" and 0.071" (1.30mm - 1.80mm). Rated for operation from -55°C to +85°C, it offers a 4-row termination configuration suitable for high-density applications requiring reliable signal transmission.

Edgeboard Connectors Feature Summary

• Dual-edge design accommodates non-specified double-sided circuit boards for increased pin density
• Cantilever spring contact mechanism ensures secure mating force and reliable electrical connection
• Gold-plated terminals provide corrosion resistance and low contact impedance
• Polyamide insulation material offers thermal stability and mechanical durability

Edgeboard Connectors Applications

• High-density electronic modules requiring dual-side signal access
• Industrial control systems utilizing standard card edge interfaces
• Telecommunications equipment with compact form factor requirements
• Test and measurement devices needing robust board-to-board connectivity

Edgeboard Connectors Procurement Notes

Verify that the target application utilizes double-sided circuit boards compatible with the specified thickness range of 1.30mm to 1.80mm. Confirm that the system design requires a 0.050" pitch dual-edge connector with 70 positions. Ensure compatibility with the 302 series housing dimensions and mounting style before procurement. Cross-reference the official datasheet for precise mechanical drawings and termination specifications to avoid integration errors.

Edgeboard Connectors Selection Notes

Select this component when a high-pin-count interface is required on a limited footprint. The dual-edge configuration doubles the available connections compared to single-edge variants without increasing the board width. Choose this model if the application demands gold-plated contacts for enhanced reliability in harsh environments. Consider the 0.050" pitch constraint to ensure trace routing feasibility on the mating PCB.

Edgeboard Connectors Part Context

This part belongs to the EDAC 302 Series, which specializes in high-reliability card edge connectors. The series is characterized by its use of cantilever spring contacts and standardized 0.050" spacing. The 302-070-321-201 represents a specific variant within this family, distinguished by its 70-position count and dual-edge capability, catering to applications needing maximum connectivity in a narrow profile.

Edgeboard Connectors Replacement Considerations

Direct substitutes must match the 70-position count, 0.050" pitch, and dual-edge configuration. Verify that alternative parts support the same PCB thickness range and offer comparable gold plating thickness. Check for identical mounting styles and row configurations to ensure mechanical compatibility.