EB73D-SK4340W Card Edge Connector - Equivalent & Substitute Parts

Part Overview

The EB73D-SK4340W is an 86-position female card edge connector manufactured by Vishay Dale, designed for dual-edge applications with 0.156" (3.96mm) pitch spacing. This connector features gold-plated phosphor bronze contacts, through-hole solder termination, and operates across -55°C to 125°C. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support, maintenance, and new production alternatives.

Substiute Parts

EB73D-SK4340W

Vishay DaleIn Stock: 714EB73D-SK4340W Datasheet

Current PartRFQ

GSM43DRKN

Sullins Connector SolutionsIn Stock: 769GSM43DRKN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EB73D-SK4340W is determined by strict alignment of the following critical parameters:

• Position Count & Configuration: 86 positions across 2 rows with 43 positions per row
• Pitch Specification: 0.156" (3.96mm) center-to-center spacing
• Gender & Contact Type: Female connector with full bellows contact design
• Contact Material & Finish: Phosphor bronze with gold plating
• Termination Method: Solder through-hole mounting
• Mechanical Compatibility: Card edge dual-edge configuration
• Electrical Performance: Operating temperature range and contact reliability

The GSM43DRKN from Sullins Connector Solutions meets all critical substitution criteria. Both connectors share identical position counts, pitch, gender, contact material, finish type, and termination method. The GSM43DRKN maintains full mechanical and electrical compatibility while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The GSM43DRKN is a direct functional equivalent to the EB73D-SK4340W for applications requiring 86-position dual-edge female card edge connectors with 0.156" pitch. Selection of the GSM43DRKN is supported by the following engineering factors:

Product Availability: The EB73D-SK4340W is obsolete and no longer manufactured. The GSM43DRKN maintains active production status, ensuring supply chain continuity and long-term availability.

Compliance & Certification: The GSM43DRKN achieves ROHS3 compliance, meeting current regulatory requirements for new designs and production. The original EB73D-SK4340W does not meet RoHS standards, making the GSM43DRKN the appropriate choice for applications subject to environmental compliance mandates.

Mechanical & Electrical Equivalence: Both connectors share identical position counts, pitch spacing, contact materials, finish specifications, and termination methods. The GSM43DRKN's card thickness specification of 0.062" falls within the EB73D-SK4340W's acceptable range of 0.054" to 0.071", ensuring mechanical compatibility with existing card designs.

Temperature Performance: The GSM43DRKN extends the lower operating temperature limit to -65°C, providing enhanced performance in cold-environment applications while maintaining the upper limit of 125°C.

Frequently Asked Questions (FAQ)

Q: Can the GSM43DRKN directly replace the EB73D-SK4340W in existing designs?

A: Yes. Both connectors are mechanically and electrically equivalent. They share identical position counts (86), pitch spacing (0.156"), contact materials (phosphor bronze with gold plating), and termination methods (solder through-hole). The GSM43DRKN's card thickness specification of 0.062" is within the EB73D-SK4340W's acceptable range of 0.054" to 0.071", ensuring compatibility with existing printed circuit boards.

Q: What is the primary reason to switch from the EB73D-SK4340W to the GSM43DRKN?

A: The EB73D-SK4340W is obsolete and no longer manufactured. The GSM43DRKN is an active product from Sullins Connector Solutions, ensuring ongoing availability for production, maintenance, and field replacements. Additionally, the GSM43DRKN meets ROHS3 compliance standards, whereas the original part does not.

Q: Are there any electrical performance differences between these connectors?

A: No. Both connectors use identical contact materials (phosphor bronze), finish specifications (gold plating), and contact types (full bellows). Electrical performance characteristics remain equivalent.

Q: Does the GSM43DRKN support the same operating temperature range?

A: The GSM43DRKN supports -65°C to 125°C, which extends the lower temperature limit compared to the EB73D-SK4340W (-55°C to 125°C). This provides enhanced performance in cold-environment applications while maintaining full compatibility at the upper temperature limit.

Q: What packaging format is the GSM43DRKN supplied in?

A: The GSM43DRKN is supplied in tray packaging, suitable for automated assembly and component handling processes.

Q: Are there any compatibility concerns with existing PCB designs?

A: No. The GSM43DRKN's mechanical specifications, including card thickness tolerance and connector footprint, are fully compatible with designs originally specified for the EB73D-SK4340W.