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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：Card Guides
- 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, Threaded Insert, 4-40
- Operating Temperature：-40°C ~ 105°C
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Overview
The EDAC Inc. 306-028-421-168 is a dual-edge female card edge connector from the 306 Series, designed for PCB interconnection. It features 56 positions with a 0.156-inch (3.96mm) contact spacing and a 0.200-inch (5.08mm) row spacing. The connector utilizes tin-plated PC tail contacts for solder termination and accepts boards with a nominal thickness of 0.062 inches (1.57mm). The insulator body is green polyamide, offering a low-profile design suitable for standard card edge applications.
Feature Summary
- Dual-edge female configuration for non-specified card types
- Tin-plated PC tail contacts for reliable solder termination
- Low-profile insulator body construction
Applications
- General-purpose printed circuit board interconnections
- Industrial control system backplanes
- Telecommunications equipment modules
Procurement Notes
Verify the specific ordering suffix against the official EDAC datasheet to confirm plating type and contact length. Ensure the target PCB thickness falls within the specified tolerance range for proper mechanical retention. Confirm that the dual-edge mating requirement aligns with the system design before procurement.
Selection Notes
Select this component when a 0.156-inch pitch dual-edge connector is required. The tin plating offers cost-effective conductivity for general environments. Consider the low-profile height if vertical space is constrained. Verify compatibility with the mating card's edge guide and thickness specifications.
Part Context
This part belongs to the EDAC 306 Series, characterized by its 0.156-inch contact spacing. The series provides various position counts and termination options. The 306-028-421-168 specifically denotes the 56-position variant with tin-plated tails and a green insulator, distinct from gold-plated or high-temperature variants in the same family.
Replacement Considerations
Direct substitutes include other EDAC 306 Series parts with matching 56-position count and 0.156-inch spacing. Verify equivalent termination style and plating material. Cross-reference mechanical dimensions with competitors like Molex or Samtec only if pinout and form factor are identical.
