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Product Detailed Parameters
- Description：CONN EDGE DUAL FMALE 78POS 0.156
- Series：306
- Mfr：EDAC Inc.
- Package：Bulk
- 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, Side Opening, Unthreaded, 0.128" (3.25mm) Dia
- Operating Temperature：-40°C ~ 105°C
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Overview
The EDAC Inc. 306-039-521-112 is a card edge connector designed for single-sided PCB insertion. It features 78 positions arranged in two rows of 39 contacts each, with a 0.156-inch (3.96mm) pitch. The connector accepts board thicknesses between 0.054 and 0.070 inches. It utilizes copper alloy cantilever contacts with 10.0µin gold plating. The insulator is green thermoplastic polyester, rated for -40°C to 105°C. Mounting is through-hole solder termination.
Feature Summary
- Single central row contact configuration for dual-side card engagement
- Cantilever spring contact design ensures reliable signal transmission
- Thermoplastic polyester insulator body provides thermal stability
- Gold-plated copper alloy terminals resist corrosion
Applications
- Industrial control system backplanes
- Telecommunications equipment interconnects
- Test and measurement instrument modules
Procurement Notes
Verify the specific suffix codes against the manufacturer datasheet to confirm exact pin count and mounting variations. Ensure the target PCB thickness falls within the specified 0.054 to 0.070 inch range for proper mechanical retention. Confirm RoHS3 compliance requirements match project specifications before finalizing procurement orders.
Selection Notes
Select this component when a single-row, dual-sided card edge interface is required. The 0.156-inch pitch suits applications needing wider spacing than standard 0.100-inch connectors. Verify that the through-hole solder termination method aligns with the assembly process capabilities and that the green insulator color meets visual identification standards.
Part Context
This part belongs to the EDAC 306 series of card edge connectors. The series offers various configurations including different pin counts and mounting styles. The 306-039 variant specifically denotes the 78-position capacity. EDAC designs these components for robust performance in demanding electronic environments requiring secure board-to-board connections.
Replacement Considerations
- 306-039-521-104
FAQ
What is the nominal thickness of the printed circuit board accepted by this connector?
The connector accepts a nominal board thickness of 0.062 inches, with an operational range from 0.054 to 0.070 inches.
Does this connector use a single or double row contact arrangement?
It features a single central row of contacts that engages both sides of the card edge simultaneously.
