305-056-556-203

$12.46

Description：CONN EDGE DUAL FMALE 56POS 0.156
Series：305
Mfr：EDAC Inc.
Package：Box

SKU:2f5e564120b8 Category: Edgeboard Connectors Brand: EDAC Inc.

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Product introduction

305-056-556-203 is listed in the Edgeboard Connectors range at ChipApex. The manufacturer field lists EDAC Inc.. Its product description is CONN EDGE DUAL FMALE 56POS 0.156. Review the specifications below when checking this part for your BOM.

Edgeboard Connectors specifications for 305-056-556-203

Description：CONN EDGE DUAL FMALE 56POS 0.156
Series：305
Mfr：EDAC Inc.
Package：Box
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 Extender
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, Floating Bobbin, 0.116" (2.95mm) Dia
Operating Temperature：-40°C ~ 105°C

Edgeboard Connectors datasheet and documents for 305-056-556-203

305-056-556-203

Edgeboard Connectors Overview

The EDAC Inc. 305-056-556-203 is a standard card edge connector from the 305 series, designed for panel mounting with a vertical orientation. It features 56 positions arranged in two rows with a pitch of 3.96 mm (0.156 inches). The connector supports a board thickness of 1.57 mm and utilizes gold-plated copper alloy contacts with solder pin termination. Rated for 5 A continuous current, it operates within a temperature range of -40°C to +105°C and offers an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

Accepts between-contact and in-contact polarizing keys for secure positioning
Dual-edge female contact design for reliable signal transmission
Thermoplastic housing provides structural integrity and electrical isolation

Edgeboard Connectors Applications

Industrial control system backplanes
Telecommunications equipment interconnects
High-reliability computing hardware modules

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required termination style and keying configuration. Confirm compatibility with the target PCB stack-up dimensions, particularly the 1.57 mm thickness constraint. Ensure environmental ratings meet the operational temperature requirements of the final assembly.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge interface with polarizing capabilities is required. The 3.96 mm pitch accommodates high-density layouts while maintaining robust mechanical stability. Verify that the 5 A current rating aligns with the power distribution needs of the connected circuitry.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series is characterized by its versatility in mounting styles and contact configurations. It serves as a critical interconnect solution in applications demanding durable connections between circuit boards and chassis systems.