305-020-520-204

Edgeboard Connectors Overview

The EDAC Inc. 305-020-520-204 is a standard card edge connector from the 305 series, designed for dual-edge PCBs. It features 20 positions with a 3.96 mm (0.156 inch) pitch and accepts board thicknesses between 1.37 mm and 1.78 mm. The connector utilizes copper alloy contacts with gold plating for reliable signal transmission. Rated for 5 A continuous current and 1800 VACrms insulation voltage, it operates within a temperature range of -40°C to +105°C. The housing is made of green thermoplastic polyester, and it supports panel mount or through-hole installation via solder pin termination.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure positioning
• Dual female contact configuration for non-specified dual-edge cards
• Gold-plated copper alloy contacts ensure durable electrical connection
• Thermoplastic polyester housing provides thermal stability and insulation

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing modular board architectures
• Automotive electronics needing high-voltage isolation capabilities
• Test and measurement devices with standardized connector footprints

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact pin count, contact plating thickness, and mounting style variations. Ensure compatibility with the target PCB thickness specifications before procurement. Cross-reference the RoHS compliance status with current regulatory requirements for the intended market. Confirm availability through authorized distributors as supply chain conditions may fluctuate.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge card interface with a 3.96 mm pitch is required. The 5 A current rating and 1800 VACrms insulation voltage make it suitable for applications demanding higher electrical stress tolerance compared to standard low-power connectors. Consider the panel mount option if space constraints prevent vertical PCB insertion. Verify that the polarizing key acceptance aligns with the mechanical design of the mating card assembly.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 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 board densities. The 305-020-520-204 specifically addresses the need for a 20-position dual-row interface with robust electrical ratings and durable materials.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pitch and position counts but different mounting styles or plating options. Verify mechanical dimensions and electrical ratings match exactly. No alternative cross-model replacements are confirmed in public documentation.