EB71D-SC3660X Equivalent & Substitute Parts

Part Overview

The EB71D-SC3660X is a 72-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 classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

EB71D-SC3660X

Vishay DaleIn Stock: 1196EB71D-SC3660X Datasheet

Current PartRFQ

RMM36DRTH

Sullins Connector SolutionsIn Stock: 906RMM36DRTH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EB71D-SC3660X is determined by the following critical parameters:

• Position Count & Configuration: 72 positions arranged in 2 rows with 36 positions per row
• Pitch Specification: 0.156" (3.96mm) center-to-center spacing
• Connector Type: Dual edge female card edge connector
• Contact System: Phosphor bronze with gold plating and full bellows contact type
• Termination Method: Solder through-hole mounting
• Electrical & Environmental Compliance: Operating temperature range and material compatibility

The RMM36DRTH from Sullins Connector Solutions meets these core substitution criteria. Both connectors share identical position counts, pitch specifications, dual-edge configuration, contact material composition, and termination methodology. Variations in card thickness tolerance, flange dimensions, and insulation material do not preclude functional substitution when mechanical envelope constraints are satisfied.

Parameter Comparison

Engineering Selection Recommendations

The RMM36DRTH represents the primary substitute for the obsolete EB71D-SC3660X based on functional equivalence across all critical connector parameters. The substitute maintains identical electrical and mechanical interface specifications, ensuring direct compatibility in applications where the original component is no longer available.

The RMM36DRTH offers improved product lifecycle status as an active component with ROHS3 compliance, providing advantages for new designs and long-term supply chain continuity. The extended operating temperature range (-65°C to 125°C versus -55°C to 125°C) provides additional thermal margin. The polyphenylene sulfide insulation material in the substitute offers enhanced chemical and thermal resistance compared to the diallyl phthalate material in the original component.

Card thickness tolerance differences require verification against specific application requirements. The original component accommodates 0.054" to 0.071" card thickness, while the substitute is specified for 0.062" nominal thickness. Applications using cards within the 0.062" specification will experience optimal contact performance with the RMM36DRTH.

Frequently Asked Questions (FAQ)

Q: Can the RMM36DRTH directly replace the EB71D-SC3660X in existing assemblies?

A: Yes, the RMM36DRTH is functionally equivalent for applications where the printed circuit card thickness falls within or near the 0.062" specification. Verify that your application's card thickness is compatible with the substitute's design parameters before implementation.

Q: What are the key differences between these two connectors?

A: The primary differences are product status (obsolete versus active), insulation material (DAP versus PPS), RoHS compliance status, and card thickness specifications. The electrical and mechanical interface characteristics remain identical.

Q: Does the RMM36DRTH require any design modifications for integration?

A: No design modifications are required. Both connectors share identical pitch, position count, contact configuration, and mounting methodology. PCB footprints and assembly processes remain unchanged.

Q: Why is the RMM36DRTH specified with a single card thickness value rather than a range?

A: The RMM36DRTH is optimized for 0.062" card thickness, which falls within the tolerance range of the original EB71D-SC3660X. This specification represents the nominal design point for optimal contact force and retention characteristics.

Q: Is the extended temperature range of the RMM36DRTH (-65°C to 125°C) significant for substitution?

A: The extended lower temperature limit provides additional thermal margin but does not affect substitution eligibility. Applications operating within the original -55°C to 125°C range will function identically with either component.

Q: What is the impact of the insulation material change from DAP to PPS?

A: Polyphenylene sulfide offers superior chemical resistance and thermal stability compared to diallyl phthalate. This material change enhances connector reliability in demanding environments without affecting electrical performance or mechanical compatibility.