305-074-500-203

Edgeboard Connectors Overview

The EDAC Inc. 305-074-500-203 is a standard card edge connector from the 305 series, designed for dual-row applications with a total of 74 positions. It features a 3.96 mm (0.156 inch) pitch and utilizes gold-plated copper alloy contacts to ensure reliable signal transmission. The connector supports a current rating of 5 A and operates within a temperature range of -40°C to +105°C. It is constructed with a thermoplastic housing and includes flange features for panel mounting. The component accepts board thicknesses between 1.37 mm and 1.78 mm and employs solder termination for secure PCB attachment.

Edgeboard Connectors Feature Summary

• Dual-row configuration providing 74 contact positions for high-density interconnects
• Gold-plated copper alloy contacts ensuring corrosion resistance and stable conductivity
• Thermoplastic polyester housing offering mechanical stability and environmental protection
• Panel mount design with integrated flanges for secure installation

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing standardized connector pitches
• Test and measurement devices needing reliable high-pin-count connections
• Automotive electronics operating in wide temperature environments

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required 74-position count and dual-row layout before ordering. Confirm compatibility with the target printed circuit board thickness, which must fall within the specified range of 1.37 mm to 1.78 mm. Ensure the application environment remains within the operational temperature limits of -40°C to +105°C. Check for any specific RoHS compliance requirements if the project demands strict adherence to environmental regulations. Validate that the panel mounting style aligns with the mechanical design constraints of the final assembly.

Edgeboard Connectors Selection Notes

Select this component when a high-pin-count interface is necessary for dual-sided card edge boards. The 3.96 mm pitch is suitable for applications where space allows for larger connectors compared to finer pitches. Consider the 5 A current rating to ensure it meets the power distribution needs of the connected modules. The gold plating is advantageous for environments prone to oxidation or where frequent mating cycles are expected. Evaluate the panel mount requirement against available chassis space and mounting hardware options.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which offers various position counts and mounting styles. The series is characterized by its use of thermoplastic materials and gold-plated contacts for durability. Similar models in the series include different pin counts such as 20, 32, and 50 positions, allowing for scalable design solutions. The 305 series is widely used in industrial and commercial applications requiring reliable card edge connectivity.

Edgeboard Connectors FAQ

What is the maximum operating temperature for this connector?

The maximum operating temperature is +105°C.

Does this connector support single-sided or double-sided cards?

It is designed for non-specified dual-edge cards, supporting both sides of the board.

What is the contact material used in this connector?

The contacts are made from copper alloy with gold plating.