305-040-556-278

$10.86

Description：CONN EDGE DUAL FMALE 40POS 0.156
Series：305
Mfr：EDAC Inc.
Package：Box

SKU:647f6d7bc9c7 Category: Edgeboard Connectors Brand: EDAC Inc.

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Product introduction

305-040-556-278 is listed in the Edgeboard Connectors range at ChipApex. The manufacturer field lists EDAC Inc.. Its product description is CONN EDGE DUAL FMALE 40POS 0.156. Review the specifications below when checking this part for your BOM.

Edgeboard Connectors specifications for 305-040-556-278

Description：CONN EDGE DUAL FMALE 40POS 0.156
Series：305
Mfr：EDAC Inc.
Package：Box
Card Type：Non Specified - Dual Edge
Gender：Female
Number of Positions/Bay/Row：20
Number of Positions：40
Card Thickness：0.054" ~ 0.070" (1.37mm ~ 1.78mm)
Number of Rows：2
Pitch：0.156" (3.96mm)
Read Out：Dual
Features：Card Extender, Card Guides
Mounting Type：Board Edge, Straddle Mount
Termination：Solder
Contact Material：Copper Alloy
Contact Finish：Gold
Contact Finish Thickness：10.0µin (0.25µm)
Contact Type：Semi Bellows
Color：Green
Flange Feature：Flush Mount, Top Opening, Threaded Insert, 4-40
Operating Temperature：-40°C ~ 105°C

Edgeboard Connectors datasheet and documents for 305-040-556-278

305-040-556-278

Edgeboard Connectors Overview

The EDAC Inc. 305-040-556-278 is a standard card edge connector from the 305 Series, designed for vertical panel mounting applications. It features a dual-row configuration with 40 positions and a contact spacing of 3.96 mm (0.156 inches). The connector accommodates printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). Constructed with copper alloy contacts featuring gold plating, it supports a continuous current rating of 5 A and offers an insulation resistance of 5 GOhms. The thermoplastic insulator body ensures reliable performance within an operating temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

Accepts between-contact and in-contact polarizing keys for secure board alignment
Features a low-profile insulator body for compact assembly requirements
Utilizes half-beam contact type for robust mechanical retention

Edgeboard Connectors Applications

Vertical panel mount interconnect systems
Dual-row card edge interface assemblies
Industrial control board connections

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm compatibility with required polarizing key configurations and termination styles. Ensure that the selected variant matches the intended PCB thickness tolerance and mounting orientation specifications before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge solution with 3.96 mm pitch is required for panel-mounted installations. Confirm that the target application utilizes a 1.57 mm thick PCB and requires a vertical mounting angle. Validate that the 5 A current rating and specified temperature range meet the operational demands of the design.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which provides various mounting options and row configurations for card edge applications. The series is characterized by its standardized 3.96 mm contact spacing and compatibility with polarizing keys, offering flexibility for diverse electronic interconnect needs across industrial and commercial sectors.