EB41-S4R366XS Card Edge Connector - Equivalent & Substitute Parts

Part Overview

The EB41-S4R366XS is a 72-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, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

EB41-S4R366XS

Vishay DaleIn Stock: 1085EB41-S4R366XS Datasheet

Current PartRFQ

EB43-S4R366XS

Vishay DaleIn Stock: 1135EB43-S4R366XS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EB41-S4R366XS is determined by strict electrical and mechanical parameter matching:

Critical Parameters for Substitution:

• Number of Positions: 72 (exact match required)
• Pitch: 0.100" (2.54mm) (exact match required)
• Gender: Female (exact match required)
• Number of Rows: 2 (exact match required)
• Card Thickness Range: 0.054" ~ 0.071" (1.37mm ~ 1.80mm) (exact match required)
• Mounting Type: Through Hole, Right Angle (exact match required)
• Contact Material: Phosphor Bronze (exact match required)
• Contact Finish: Gold (exact match required)
• Operating Temperature Range: -65°C ~ 125°C (exact match required)

Allowable Variations:

• Insulation Material: May differ while maintaining electrical and mechanical performance
• Color: May differ without affecting functional compatibility
• Product Status: Active status preferred for ongoing availability

The EB43-S4R366XS qualifies as a direct substitute based on matching all critical electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The EB43-S4R366XS is a direct functional equivalent to the EB41-S4R366XS. Both parts maintain identical electrical and mechanical specifications across all critical parameters including position count, pitch, contact material, finish, and operating temperature range.

The primary distinction is product status: the EB41-S4R366XS is obsolete, while the EB43-S4R366XS is active. For new designs and ongoing system support, the EB43-S4R366XS is the appropriate selection due to continued manufacturer availability and support.

Both parts carry identical RoHS non-compliant status and export classifications (ECCN: EAR99, HTSUS: 8536.69.4040). The insulation material differs (DAP versus Polyester Thermoplastic), but both are glass-filled formulations meeting the same functional requirements. Color variation (green versus black) does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the EB43-S4R366XS replace the EB41-S4R366XS in existing applications?

A: Yes. The EB43-S4R366XS matches all critical electrical and mechanical parameters of the EB41-S4R366XS, including position count (72), pitch (0.100"), contact material (phosphor bronze), contact finish (gold), and operating temperature range (-65°C to 125°C). Direct substitution is supported.

Q: What is the difference between these two parts?

A: The parts differ in three non-critical aspects: product status (obsolete versus active), insulation material (DAP versus polyester thermoplastic), and connector color (green versus black). These variations do not affect functional compatibility or electrical performance.

Q: Are there any compatibility concerns with the insulation material change?

A: No. Both insulation materials are glass-filled formulations designed for the same operating temperature range and environmental conditions. The change from DAP to polyester thermoplastic does not impact mechanical fit, electrical performance, or reliability.

Q: Why is the EB41-S4R366XS marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The EB43-S4R366XS remains in active production and is the recommended choice for new designs and ongoing support.

Q: Will the EB43-S4R366XS fit the same PCB footprint?

A: Yes. Both connectors share identical mounting specifications: through-hole right-angle configuration, side mount opening with 0.125" (3.18mm) unthreaded diameter, and the same flange geometry. PCB footprints are interchangeable.

Q: Are both parts RoHS compliant?

A: No. Both the EB41-S4R366XS and EB43-S4R366XS are RoHS non-compliant. If RoHS compliance is required, alternative connector families must be evaluated.