EB73S-SA224X1 Card Edge Connector Equivalent & Substitute Parts

Part Overview

The EB73S-SA224X1 is a 44-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 with full bellows design and panel mount configuration using solder eyelet termination.

The EB73S-SA224X1 is classified as obsolete. Locating equivalent and substitute parts is necessary to maintain system compatibility, ensure continued availability for repair and replacement applications, and support legacy equipment requiring this connector type.

Key Parameters

Parameter	Value
Connector Type	Card Edge, Dual Female
Number of Positions	44 (22 per row)
Pitch	0.156" (3.96mm)
Card Thickness Range	0.054" ~ 0.071" (1.37mm ~ 1.80mm)
Contact Material	Phosphor Bronze with Gold Finish
Contact Type	Full Bellows
Mounting Type	Panel Mount
Termination	Solder Eyelet(s)
Operating Temperature	-55°C ~ 125°C
Color	Black

Substitute Part Grouping Explanation

Substitution eligibility for the EB73S-SA224X1 is determined by the following critical parameters:

Position Count & Configuration: 44 positions arranged as dual-edge (22 per row, 2 rows)
Pitch Specification: 0.156" (3.96mm) center-to-center spacing
Card Thickness Compatibility: Acceptable range 0.054" ~ 0.071" (1.37mm ~ 1.80mm)
Contact Finish: Gold plating for corrosion resistance and signal integrity
Mounting & Termination: Panel mount with solder eyelet termination
Gender Configuration: Female connector for card edge insertion

The substitute part 356-022-500-102 (Mercury United Electronics, Inc.) meets these core substitution criteria. Variations in contact material composition, contact type design, and operating temperature range do not preclude substitution when the primary functional parameters align.

Parameter Comparison

Parameter	EB73S-SA224X1 (Vishay Dale)	356-022-500-102 (Mercury)	Compatibility
Connector Type	Card Edge Dual Female	Card Edge Dual Female	Match
Number of Positions	44 (22 per row)	44 (22 per row)	Match
Pitch	0.156" (3.96mm)	0.156" (3.96mm)	Match
Card Thickness Range	0.054" ~ 0.071" (1.37mm ~ 1.80mm)	0.054" ~ 0.070" (1.37mm ~ 1.78mm)	Compatible
Contact Material	Phosphor Bronze	Copper Alloy	Functionally Equivalent
Contact Finish	Gold	Gold (10.0µin / 0.25µm)	Match
Contact Type	Full Bellows	Cantilever	Different Design
Mounting Type	Panel Mount	Panel Mount	Match
Termination	Solder Eyelet(s)	Solder Eyelet(s)	Match
Operating Temperature	-55°C ~ 125°C	-40°C ~ 105°C	Reduced Range
Color	Black	Black	Match
Product Status	Obsolete	Active	Substitute Available
RoHS Status	RoHS Non-Compliant	ROHS3 Compliant	Improved Compliance

Engineering Selection Recommendations

The 356-022-500-102 (Mercury United Electronics, Inc.) is the manufacturer-recommended substitute for the obsolete EB73S-SA224X1. This substitute maintains functional equivalence across all primary connector specifications: 44-position dual-edge configuration, 0.156" pitch, gold-plated contacts, panel mount design, and solder eyelet termination.

Key selection considerations:

Product Status: The 356-022-500-102 is active production with 825 units in stock, ensuring availability for immediate procurement and future reorders. The EB73S-SA224X1 is obsolete with limited remaining inventory.

Regulatory Compliance: The 356-022-500-102 achieves ROHS3 compliance, meeting current environmental and material restriction standards. The EB73S-SA224X1 is RoHS non-compliant, which may restrict use in regulated applications.

Operating Temperature Range: The substitute operates within -40°C ~ 105°C, compared to the original -55°C ~ 125°C. Applications requiring operation below -40°C or above 105°C require thermal performance verification.

Contact Design Variation: The substitute employs cantilever contact design versus the original full bellows design. Both designs provide reliable electrical contact for card edge applications; however, mechanical insertion force and contact retention characteristics may differ slightly.

Frequently Asked Questions (FAQ)

Q: Can the 356-022-500-102 directly replace the EB73S-SA224X1 in existing assemblies?

A: Yes, the 356-022-500-102 is mechanically and electrically compatible for standard card edge applications. Both connectors accept 0.054" ~ 0.070" card thickness, maintain 0.156" pitch spacing, and provide 44-position dual-edge female configuration with gold-plated contacts and solder eyelet termination.

Q: What is the difference between full bellows and cantilever contact designs?

A: Full bellows contacts use a spring-loaded bellows mechanism for contact retention and force distribution. Cantilever contacts employ a cantilevered spring design. Both designs provide reliable electrical contact in card edge applications; however, insertion force, contact pressure, and mechanical durability characteristics differ. Consult connector datasheets for specific mechanical performance data.

Q: Does the reduced operating temperature range of the substitute affect compatibility?

A: The 356-022-500-102 operates within -40°C ~ 105°C versus the original -55°C ~ 125°C range. For applications operating within this narrower range, no compatibility issues exist. Applications requiring operation below -40°C or above 105°C require thermal performance verification and may necessitate alternative solutions.

Q: Is the 356-022-500-102 suitable for new designs?

A: Yes. The 356-022-500-102 is active production with ROHS3 compliance, making it suitable for new equipment designs. The EB73S-SA224X1 is obsolete and not recommended for new applications.

Q: What packaging is available for the 356-022-500-102?

A: The 356-022-500-102 is supplied in bulk packaging. Confirm packaging requirements with your procurement specification before ordering.

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