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Product Detailed Parameters
- Description：CONN EDGE DUAL FMALE 56POS 0.156
- Series：306
- Mfr：EDAC Inc.
- Package：Bulk
- Card Type：Non Specified - Dual Edge
- Gender：Female
- Number of Positions/Bay/Row：28
- Number of Positions：56
- 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：Tin
- Contact Finish Thickness：-
- Contact Type：Cantilever
- Color：Green
- Flange Feature：Flush Mount, Top Opening, Unthreaded, 0.128" (3.25mm) Dia
- Operating Temperature：-40°C ~ 105°C
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Overview
The EDAC Inc. 306-028-421-102 is a standard card edge connector from the 306 series, designed for panel mount installation with a vertical orientation. It features a dual-edge female configuration with 56 positions arranged in two rows of 28 contacts. The connector utilizes a 3.96 mm (0.156 inch) contact spacing and accepts printed circuit boards with a thickness range of 1.37 mm to 1.78 mm. The housing is constructed from green thermoplastic polyester, while the contacts are made of copper alloy with a tin plating finish.
Feature Summary
- Dual-edge female design accommodates non-specified double-sided PCBs
- Panel mount style with vertical orientation for secure integration
- Low profile insulator body construction for compact assembly
Applications
- Industrial control systems requiring robust board-to-panel connections
- Telecommunications equipment utilizing standard card edge interfaces
- Test and measurement instrumentation needing reliable signal routing
Procurement Notes
Verify that the specific tin-plated variant matches the application requirements, as other versions in the 306 series may feature gold plating. Confirm the dual-edge configuration is suitable for the target PCB design. Ensure the panel cutout dimensions align with the connector's flange specifications for proper fitment during installation.
Selection Notes
Select this component when a high-density connection with 56 positions is required for double-sided cards. The 3.96 mm pitch offers a balance between density and mechanical stability. Consider the tin plating for cost-effective applications where frequent mating cycles are not anticipated, contrasting with gold-plated alternatives for higher durability needs.
Part Context
This part belongs to the EDAC 306 Series, which provides various configurations for card edge interconnections. The series includes single and dual-edge options with different position counts and plating finishes. The 306-028-421-102 specifically addresses the need for a 56-position dual-edge solution with a standard 0.156-inch spacing.
Replacement Considerations
Direct substitutes within the same series include parts like 306-028-400-102, which shares the 56-position dual-edge form factor but differs in contact plating. Verify compatibility regarding PCB thickness tolerance and mounting hole alignment before replacement.
