307-020-540-278

Edgeboard Connectors Overview

The EDAC Inc. 307-020-540-278 is a standard card edge connector from the 307 series, designed for dual-edge board applications. It features 20 positions with a contact spacing of 0.156 inches (3.96 mm) and a row spacing of 0.200 inches (5.08 mm). The connector accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm). It utilizes gold-plated copper alloy contacts and a green thermoplastic polyester insulator body. The component supports surface mount termination via soldering and operates within a temperature range of -40°C to 105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female connector design accommodating non-specified board types
• Gold-plated copper alloy contacts ensuring reliable electrical performance
• Low-profile thermoplastic polyester insulator body for compact integration
• Surface mount solder termination for secure PCB attachment

Edgeboard Connectors Applications

• Industrial control systems requiring robust edge connections
• Telecommunications equipment utilizing dual-edge card architectures
• Test and measurement instruments needing high-density interconnects
• Computing hardware modules with standardized card form factors

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required contact plating and termination style. Confirm the board thickness tolerance aligns with the 0.062-inch nominal specification. Ensure the surface mount footprint corresponds to the manufacturer's recommended land pattern. Check RoHS compliance status if environmental regulations apply to the final assembly. Validate the operating temperature range against system thermal requirements.

Edgeboard Connectors Selection Notes

Select this model when a dual-edge configuration is necessary for the application architecture. The 0.156-inch pitch provides a balance between density and manufacturability. Gold plating is preferred for environments requiring corrosion resistance and stable contact impedance. The surface mount option facilitates automated assembly processes. Consider the low-profile body height if vertical space constraints are present in the enclosure design.

Edgeboard Connectors Part Context

This component belongs to the EDAC 307 series of edgeboard connectors, which are engineered for high-reliability interconnect solutions. The series offers various position counts and mounting styles to support diverse electronic designs. The 307-020-540-278 specifically addresses needs for dual-edge connectivity with precise dimensional tolerances. It represents a standardized solution for connecting peripheral cards to main system backplanes or motherboards.

Edgeboard Connectors Replacement Considerations

Cross-reference part numbers within the EDAC 307 series for alternative position counts or mounting variations. Verify compatibility with existing board layouts before substituting similar components from other manufacturers. Ensure that any replacement maintains the same contact spacing and board thickness acceptance criteria to preserve mechanical fit.