305-074-555-203

Edgeboard Connectors Overview

The EDAC Inc. 305-074-555-203 is a standard card edge connector from the 305 Series, designed for dual female mating with printed circuit boards. It features 74 positions arranged in two rows with a contact spacing of 0.156 inches (3.96 mm) and a row spacing of 0.140 inches (3.56 mm). The unit accepts PCBs with a nominal thickness of 0.062 inches (1.57 mm), operating within a temperature range of -40°C to +105°C. Electrical specifications include a continuous current rating of 5 A and an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Utilizes low profile insulator body constructed from thermoplastic polyester
• Features gold-plated copper alloy contacts with half-beam termination style

Edgeboard Connectors Applications

• Panel-mounted interconnect systems requiring polarized keying
• High-density electronic modules utilizing 0.062-inch thick PCBs
• Industrial control units operating in extreme temperature environments

Edgeboard Connectors Procurement Notes

Verify that the specific suffix matches the required flange characteristics and mounting orientation. Confirm RoHS compliance status against current manufacturing revisions. Ensure the ordering quantity aligns with manufacturer standard packaging limits. Cross-reference the datasheet drawing for precise dimensional tolerances before final integration.

Edgeboard Connectors Selection Notes

Select this component when a dual-row female connector with polarizing key capability is required. The 0.156-inch pitch suits applications needing robust mechanical retention. Verify compatibility with existing PCB stack-up thicknesses. Consider the 5A current rating for power distribution requirements within the assembly design constraints.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which provides standardized card edge solutions. The series offers various position counts while maintaining consistent electrical performance. Components share common material properties and termination styles across different pin configurations.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 305-072-555-203 and 305-080-555-203. These alternatives maintain identical mechanical interfaces and electrical ratings while differing only in contact count.