305-026-500-203

Edgeboard Connectors Overview

The EDAC Inc. 305-026-500-203 is a standard card edge connector from the 305 series, designed for reliable signal transmission in electronic assemblies. It features 26 positions with a contact spacing of 3.96 mm and a row spacing of 3.56 mm. The connector accepts printed circuit boards with a nominal thickness of 1.57 mm. It utilizes gold-plated copper alloy contacts to ensure low contact resistance and durability. The unit supports a continuous current rating of 5 A and withstands 1800 VACrms dielectric voltage. The insulator body is constructed from thermoplastic polyester, providing stability across an operating 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 a low-profile insulator body for compact panel or PCB mounting applications
• Utilizes half-beam contact type for robust mechanical retention during mating cycles

Edgeboard Connectors Applications

• Industrial control systems requiring high-density interconnects
• Telecommunications equipment utilizing standardized card edge interfaces
• Test and measurement instrumentation panels

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact pin count, plating thickness, and termination style. Ensure compatibility with the target PCB thickness of 1.57 mm before procurement. Cross-reference the RoHS compliance status with current regulatory requirements for the intended market. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge interface with 26 positions is required. The 3.96 mm pitch suits applications needing moderate density without excessive miniaturization. Verify that the 5 A current rating meets the electrical load requirements of the circuit. Ensure the vertical installation angle aligns with the chassis design constraints. Consider the gold plating for environments where corrosion resistance is critical.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and termination styles to accommodate different board designs. The 305-026-500-203 specifically denotes a 26-position receptacle configuration. Similar parts in the series include variants with different pin counts such as 305-020-500-203 or 305-032-500-203, sharing identical mechanical and electrical characteristics.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 305-026-555-203 and 305-026-500-503, which share the same 26-position layout and form factor. Verify that any replacement maintains the 3.96 mm pitch and 1.57 mm board thickness compatibility. Ensure the termination method matches the assembly process requirements.