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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. 306-028-420-158 is a standard card edge connector from the 306 series, designed for dual-edge board applications. It features 56 positions with a female contact type and a 0.156-inch (3.96mm) pitch. The connector utilizes tin-plated contacts on a copper alloy base, housed in a green insulator made of polyamide. It supports a card thickness range of 0.054 inches to 0.070 inches (1.37mm to 1.78mm). The component employs a solder eyelet termination method and is rated for an operating temperature between -55°C and 85°C.
Feature Summary
- Dual-edge configuration for non-specified card types
- Solder eyelet termination for reliable PCB mounting
- Tin-plated contacts for corrosion resistance
Applications
- General industrial electronic assemblies
- Consumer electronics internal connections
- Telecommunications equipment modules
Procurement Notes
Verify the specific ordering suffix to confirm contact finish and color attributes, as variations exist within the 306-028 family. Ensure the target application accommodates the specified 0.156-inch pitch and dual-edge card thickness requirements. Confirm that the tin-plated contact material meets the environmental and conductivity standards for the intended end-use environment before finalizing procurement.
Selection Notes
Select this component when a dual-edge connection with a 3.96mm pitch is required. The 56-position count suits medium-density interconnect needs. Consider the tin plating for cost-effective solutions where high-cycle mating is not necessary. Verify compatibility with the target PCB layout and card thickness specifications to ensure proper mechanical fit and electrical performance.
Part Context
This part belongs to the EDAC 306 series of standard card edge connectors. The series offers various position counts and termination styles. The 306-028-420-158 specifically denotes a 56-position variant with dual-edge contacts and tin plating. It is distinct from the 302 series which uses a finer 1.27mm pitch, and the 357 series which features flanges.
Replacement Considerations
Direct substitutes include other EDAC 306 series parts with matching 56 positions and dual-edge configurations, such as 306-028-420-112, provided the contact finish and color differences are acceptable for the application.
