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Product Detailed Parameters
- Description：CONN EDGE DUAL FMALE 70POS 0.156
- Series：306
- Mfr：EDAC Inc.
- Package：Box
- Card Type：Non Specified - Dual Edge
- Gender：Female
- Number of Positions/Bay/Row：35
- Number of Positions：70
- 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：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
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Overview
The EDAC Inc. 306-035-520-178 is a standard card edge connector receptacle from the 306 series, designed for through-hole mounting with a straight orientation. It features 70 positions and a contact spacing of 0.156 inches (3.96 mm). The connector accepts dual-edge PCBs with a nominal thickness of 0.062 inches (1.57 mm), accommodating a range of 0.054 to 0.070 inches. Contacts are gold-plated copper alloy, rated for 5 A current, housed in a green thermoplastic polyester body.
Feature Summary
- Dual-edge female connector design accepting non-specified board types
- Gold-plated copper alloy contacts for reliable signal transmission
- Low-profile insulator body constructed from thermoplastic polyester
- Through-hole solder termination for secure PCB attachment
Applications
- Industrial control systems requiring robust card edge interfaces
- Communication equipment utilizing modular board architectures
- Medical devices needing reliable high-density connections
- Consumer electronics employing standardized expansion cards
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact pin count, plating specifications, and housing color before procurement. Ensure the target printed circuit board thickness falls within the specified acceptance range of 0.054 to 0.070 inches to guarantee proper mechanical engagement and electrical continuity during assembly.
Selection Notes
Select this component when a 70-position dual-edge interface is required with a 3.96 mm pitch. Confirm that the application supports through-hole mounting and straight orientation. Verify that the operating environment does not exceed the thermal limits of the thermoplastic polyester housing and that the 5 A current rating per contact aligns with the system's power distribution requirements.
Part Context
This part belongs to the EDAC 306 series of standard card edge connectors, which are characterized by their low-profile design and single centerline row configuration. The series is engineered for general-purpose applications where reliable connectivity between a host board and a plug-in module is essential, offering a balance of mechanical stability and electrical performance.
Replacement Considerations
Cross-reference compatible parts within the EDAC 306 series family, such as variants with different position counts or housing colors, ensuring identical pitch and board thickness compatibility. Verify that any substitute maintains the same dual-edge female configuration and through-hole termination style to preserve mechanical fit and electrical function.
