306-025-521-103

Overview

The EDAC Inc. model 306-025-521-103 is a standard card edge connector from the 306 series, designed for vertical panel mounting applications. It features a single row of 25 positions with a contact spacing of 3.96 mm (0.156 inches). The connector utilizes gold-plated copper alloy contacts and a thermoplastic insulator body. It is engineered to accept printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). The component supports an operating temperature range from -40°C to +105°C and provides an insulation resistance of 5 GOhms.

Feature Summary

• Vertical panel mount configuration with single centerline row design
• Gold-plated copper alloy contacts for reliable signal transmission
• Compatible with 1.57 mm nominal thickness PCBs
• Thermoplastic insulator body construction

Applications

• Industrial control systems requiring robust card edge connections
• Telecommunications equipment interface modules
• Test and measurement instrument backplanes
• Automotive electronic control unit interconnects

Procurement Notes

Verify the specific ordering suffix against the official EDAC datasheet to ensure correct plating thickness and material specifications. Confirm that the required PCB thickness aligns with the 1.57 mm nominal tolerance. Check regional availability as distribution status may vary by location. Ensure compliance with relevant RoHS directives if applicable to your manufacturing region. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this connector when a single-row, high-current capable card edge interface is required for panel-mounted assemblies. The 3.96 mm pitch allows for wider trace spacing compared to finer pitches, reducing crosstalk risks in high-power applications. Consider the vertical orientation for space-constrained enclosures where board-to-board height is limited. Evaluate the thermal rating against the expected ambient temperatures in the final assembly environment.

Part Context

This component belongs to the EDAC 306 series of standard card edge connectors, which are widely used in industrial and commercial electronics. The series offers various position counts and mounting styles to accommodate different PCB designs. The 306 series is known for its durability and consistent electrical performance in demanding environments. It serves as a critical interconnect solution for modular system architectures.

Replacement Considerations

Direct substitutes within the same series include part numbers such as 306-025-521-107 or 306-025-521-158, depending on specific packaging or minor variant requirements. Verify mechanical dimensions and pinout compatibility before substitution. Consult the official EDAC replacement guide for cross-referencing similar products with adjusted specifications.