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Product Detailed Parameters
- Description：CONN EDGE DUAL FMALE 78POS 0.156
- Series：306
- Mfr：EDAC Inc.
- Package：Box
- Card Type：Non Specified - Dual Edge
- Gender：Female
- Number of Positions/Bay/Row：39
- Number of Positions：78
- Card Thickness：0.054" ~ 0.070" (1.37mm ~ 1.78mm)
- Number of Rows：2
- Pitch：0.156" (3.96mm)
- Read Out：Dual
- Features：-
- Mounting Type：Panel Mount, Through Hole
- Termination：Solder
- Contact Material：Copper Alloy
- Contact Finish：Gold
- Contact Finish Thickness：10.0µin (0.25µm)
- Contact Type：Cantilever
- Color：Green
- Flange Feature：Flush Mount, Top Opening, Threaded Insert, 4-40
- Operating Temperature：-40°C ~ 105°C
Download product information
Overview
The EDAC Inc. 306-039-521-108 is a dual-edge female card edge connector designed for through-hole mounting. It features 78 positions with a 0.156-inch (3.96mm) contact spacing arranged in two rows of 39 contacts each. The connector utilizes gold-plated cantilever spring contacts housed in a green thermoplastic polyester insulator. It supports PCB thicknesses ranging from 0.054 to 0.070 inches and operates within a temperature range of -40°C to 105°C, ensuring reliable electrical interconnection in standard board applications.
Feature Summary
- Dual-edge female configuration with cantilever spring contacts for secure board retention
- Gold-plated terminals ensure low contact resistance and corrosion resistance
- Green thermoplastic polyester insulator provides thermal stability and mechanical strength
- Through-hole termination with flange features for flush mounting and side opening
Applications
- Industrial control system backplanes
- Telecommunications equipment interface boards
- High-temperature electronic module connections
- Standard card edge interconnect systems
Procurement Notes
Verify the specific part number 306-039-521-108 against official EDAC documentation to confirm compatibility with target PCB specifications. Ensure that the required card thickness falls within the 0.054 to 0.070 inch range. Confirm RoHS3 compliance requirements if applicable to the end product. Cross-reference the lead time and packaging quantity directly with authorized distributors, as availability may vary by region and order volume.
Selection Notes
Select this component when a dual-edge female connector with 0.156-inch spacing is required for high-reliability applications. Consider the green insulator color for visual identification and the through-hole mounting style for robust mechanical attachment. Evaluate the operating temperature range of -40°C to 105°C against environmental conditions. Ensure the PCB design accommodates the specified flange dimensions and side opening for proper alignment during assembly.
Part Context
This connector belongs to the EDAC Standard Card Edge Connectors series, specifically designed for general-purpose electronic interconnections. The 306 series offers various position counts and spacing options to accommodate different board densities. As a dual-edge female connector, it interfaces with male pins on the mating board, providing a stable connection for signal and power transmission in modular electronic systems.
Replacement Considerations
Direct substitutes must match the 78-position count, 0.156-inch spacing, and dual-edge female configuration. Verify that alternative parts support the same through-hole termination and operate within the -40°C to 105°C range. Check for compatible flange features and insulator material properties to ensure mechanical and electrical equivalence.
