305-028-520-203

Edgeboard Connectors Overview

The EDAC Inc. 305-028-520-203 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 28 positions arranged in a dual row configuration with a contact spacing of 0.156 inches (3.96 mm). The connector utilizes gold-plated copper alloy contacts and accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm). Rated for 5 A continuous current, it operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features low profile insulator body construction
• Provides reliable connection through gold-plated half-beadle contact type

Edgeboard Connectors Applications

• Panel-mounted electronic assemblies requiring vertical card edge interface
• Industrial control systems utilizing polarized PCB insertion
• High-density interconnect applications needing robust mechanical retention

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required position count and pitch specifications before procurement. Confirm compatibility with the target PCB thickness of 0.062 inches to ensure proper mechanical fit. Check for RoHS compliance status if environmental regulations apply to the end product. Ensure that the panel mounting style aligns with the enclosure design requirements.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with 28 positions is required for vertical panel mounting. Consider the 5 A current rating and 1800 VACrms insulation voltage for electrical safety margins. Choose this model over single-row variants if higher pin density per unit width is necessary. Verify that the polarizing key acceptance feature meets the assembly alignment needs.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts while maintaining consistent 0.156-inch spacing and panel mount characteristics. Similar models include the 305-020-520-203 and 305-030-520-203, which differ primarily in the number of available positions but share identical electrical and mechanical specifications.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pitch and row configuration but different position counts, such as the 305-020-520-203 or 305-030-520-203, provided the pin count difference is acceptable for the design.