305-070-555-508

Edgeboard Connectors Overview

The EDAC Inc. 305-070-555-508 is a standard card edge connector from the 305 series, designed for dual-edge board applications. It features 70 positions with a contact spacing of 3.96 mm (0.156 inches) and a row spacing of 3.56 mm (0.140 inches). The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). It utilizes gold-plated copper alloy contacts and a green thermoplastic insulator body. Rated for 5 A continuous current and 1800 VACrms insulation voltage, it operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge configuration supports insertion into both sides of the card edge for secure mating.
• Low-profile insulator body design facilitates compact panel mounting installations.
• Gold-plated contacts ensure reliable electrical performance and corrosion resistance.
• Accepts between-contact and in-contact polarizing keys for precise alignment.

Edgeboard Connectors Applications

• Panel-mounted electronic systems requiring high-density interconnects
• Industrial control modules utilizing dual-edge card edge PCBs
• Communication equipment backplanes needing robust signal transmission

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required 70-position count and 3.96 mm pitch before ordering. Confirm compatibility with the target PCB thickness of 1.57 mm to ensure proper mechanical fit. Check for RoHS compliance requirements if operating in regulated environments. Ensure the installation style aligns with the vertical panel mount design specified for this component.

Edgeboard Connectors Selection Notes

Select this connector when a dual-edge interface is required for 70 signals with a 3.96 mm spacing. It is suitable for applications demanding a 5 A current rating and operation up to 105°C. Consider the low-profile body for space-constrained panel mounts. Verify that the polarizing key options meet 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 and mounting styles, all sharing the 3.96 mm contact spacing characteristic. The 305-070 variant specifically provides a 70-position capacity, fitting within the broader family of dual-edge connectors designed for reliable industrial and commercial electronics interconnections.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical 70-position counts and 3.96 mm pitch, such as the 305-070-556-568, which differs primarily in termination type. Cross-series replacements like the 355 series may offer similar electrical specs but differ in insulator color or minor dimensional tolerances. Always verify mechanical drawings before substitution.