305-020-556-202

Edgeboard Connectors Overview

The EDAC Inc. 305-020-556-202 is a dual-edge female card edge connector featuring 20 positions across two rows with a 0.156-inch (3.96 mm) pitch. Designed for board edge or straddle mount installation, it utilizes gold-plated copper alloy contacts with a thickness of 10.0 µin (0.25 µm). The housing is constructed from green thermoplastic polyester, supporting card thicknesses between 0.054 and 0.070 inches. It operates within a temperature range of -40°C to 105°C and complies with RoHS3 standards.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for secure mating with non-specified double-sided edge cards
• Straddle mount design allows for stable board edge installation without additional hardware
• Gold-plated semi-waffle spring contacts ensure reliable signal transmission and corrosion resistance
• Thermoplastic polyester insulation provides durability and thermal stability in demanding environments

Edgeboard Connectors Applications

• Adapter board interconnections
• Industrial control system backplanes
• Telecommunications equipment interfaces
• Automotive electronic module connections

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against the manufacturer's official ordering guide to confirm exact contact plating thickness and flange specifications. Ensure that the selected variant matches the required card thickness tolerance and mounting style for your PCB layout. Cross-reference the datasheet revision date to confirm compliance with current environmental regulations such as RoHS3 before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-row, 20-position connection is required for double-sided edge cards. The 0.156-inch pitch accommodates standard board widths while the straddle mount option simplifies assembly by eliminating through-hole soldering for the main body. Verify that the operating temperature range meets the environmental conditions of the target application.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and mounting styles, including panel mount and straddle mount options. The 305 series is widely used in industrial and commercial applications requiring robust, high-reliability interconnects for edge-mounted circuit boards.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 305-020-556-203 and 305-020-556-204, which may differ in flange features or packaging. Always verify mechanical dimensions and electrical ratings before substitution.