EB41-S3R256FS Card Edge Connector - Equivalent & Substitute Parts

Part Overview

The EB41-S3R256FS is a 50-position female card edge connector manufactured by Vishay Dale, designed for dual-edge applications with 0.100" (2.54mm) pitch spacing. This connector features gold-plated phosphor bronze contacts, through-hole right-angle mounting, and operates across -65°C to 125°C. The part is currently obsolete, necessitating identification of active substitute components that maintain electrical and mechanical compatibility for existing applications.

Substiute Parts

EB41-S3R256FS

Vishay DaleIn Stock: 1013EB41-S3R256FS Datasheet

Current PartRFQ

EB43-S3R256FS

Vishay DaleIn Stock: 1175EB43-S3R256FS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EB41-S3R256FS is determined by strict alignment of the following critical parameters:

• Electrical Compatibility: Number of positions (50), pitch spacing (0.100"), contact material (phosphor bronze), and contact finish (gold) must remain identical
• Mechanical Compatibility: Card type (dual edge), gender (female), card thickness tolerance (0.054" ~ 0.071"), and mounting configuration (through hole, right angle) must match exactly
• Environmental Specifications: Operating temperature range (-65°C ~ 125°C) must be maintained or exceeded
• Series Continuity: Parts within the EB4 series maintain design compatibility

The EB43-S3R256FS qualifies as a direct substitute based on these parameters. Variations in insulation material and color do not affect functional substitution when all electrical and mechanical specifications align.

Parameter Comparison

Engineering Selection Recommendations

The EB43-S3R256FS is the qualified substitute for the obsolete EB41-S3R256FS. Both components maintain identical electrical and mechanical specifications across all critical parameters: 50-position dual-edge configuration, 0.100" pitch, phosphor bronze gold-plated contacts, and -65°C to 125°C operating range.

The primary distinction is product status: EB41-S3R256FS is obsolete with limited inventory availability, while EB43-S3R256FS is active with 1100 units in stock. Secondary differences in insulation material (DAP versus polyester thermoplastic) and connector color (green versus black) do not impact functional performance or compatibility with existing card edge applications.

Both parts carry identical RoHS non-compliance status, MSL rating, ECCN classification, and HTSUS codes, confirming regulatory and compliance alignment.

Frequently Asked Questions (FAQ)

Q: Can EB43-S3R256FS directly replace EB41-S3R256FS in existing designs?

A: Yes. All electrical and mechanical specifications are identical, including position count, pitch spacing, contact material, contact finish, card thickness tolerance, mounting configuration, and operating temperature range. The parts are functionally interchangeable.

Q: What is the significance of the color difference between the two connectors?

A: Color is a cosmetic identifier and does not affect electrical or mechanical performance. The green (EB41) and black (EB43) variants are both dual-edge 50-position connectors with identical contact specifications and mounting characteristics.

Q: Does the insulation material change affect compatibility?

A: No. Both diallyl phthalate (DAP) and polyester thermoplastic insulation materials are glass-filled and rated for the same operating temperature range (-65°C to 125°C). The material change does not impact connector function or card edge compatibility.

Q: Are there any compliance or certification differences?

A: Both parts share identical RoHS status (non-compliant), MSL rating (1 - Unlimited), ECCN classification (EAR99), and HTSUS codes (8536.69.4040). No compliance advantages or disadvantages exist between the two parts.

Q: Why is EB41-S3R256FS listed as obsolete?

A: Obsolescence indicates the part is no longer in active production. The EB43-S3R256FS provides continuity for applications requiring 50-position dual-edge card edge connectors with 0.100" pitch and gold-plated phosphor bronze contacts.

Q: What card thickness range is supported?

A: Both connectors accommodate card thickness between 0.054" and 0.071" (1.37mm to 1.80mm), ensuring compatibility with standard dual-edge card designs within this tolerance band.