EB73S-SB0640X Equivalent & Substitute Parts

Part Overview

The EB73S-SB0640X is a 12-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 suitable substitute components essential for ongoing system support and procurement.

Key Parameters

Parameter	Value
Connector Type	Card Edge, Dual Female
Number of Positions	12
Pitch	0.156" (3.96mm)
Card Thickness Range	0.054" ~ 0.071" (1.37mm ~ 1.80mm)
Number of Rows	2
Mounting Type	Through Hole
Termination	Solder
Contact Material	Phosphor Bronze with Gold Finish
Operating Temperature	-55°C ~ 125°C
Flange Feature	Flush Mount, Top Opening, Unthreaded, 0.128" (3.25mm) Dia

Substitute Part Grouping Explanation

Substitution of the EB73S-SB0640X is determined by strict alignment of the following critical parameters:

Connector Configuration: Dual-edge female card edge connector with 12 positions
Pitch Specification: 0.156" (3.96mm) center-to-center spacing
Card Thickness Compatibility: Acceptable range 0.054" ~ 0.071" (1.37mm ~ 1.80mm)
Mounting and Termination: Through-hole solder termination
Flange Geometry: Flush mount, top opening configuration with 0.128" (3.25mm) diameter unthreaded hole
Contact Finish: Gold plating for corrosion resistance and electrical performance

The substitute part 356-006-520-102 (Mercury United Electronics, Inc.) meets these core functional requirements while maintaining mechanical and electrical compatibility within the specified parameters.

Parameter Comparison

Parameter	EB73S-SB0640X (Vishay Dale)	356-006-520-102 (Mercury)	Compatibility
Connector Type	Card Edge Dual Female	Card Edge Dual Female	Match
Number of Positions	12	12	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
Number of Rows	2	2	Match
Mounting Type	Through Hole	Through Hole	Match
Termination	Solder	Solder	Match
Contact Material	Phosphor Bronze	Copper Alloy	Compatible
Contact Finish	Gold	Gold (10.0µin / 0.25µm)	Match
Operating Temperature	-55°C ~ 125°C	-40°C ~ 105°C	Partial Overlap
Flange Feature	Flush Mount, Top Opening, Unthreaded, 0.128" (3.25mm) Dia	Flush Mount, Top Opening, Unthreaded, 0.128" (3.25mm) Dia	Match
Color	Black	Black	Match
Product Status	Obsolete	Active	Substitute Available
RoHS Status	Non-compliant	ROHS3 Compliant	Improved Compliance

Engineering Selection Recommendations

The 356-006-520-102 serves as a direct functional substitute for the obsolete EB73S-SB0640X based on matching connector geometry, pitch, position count, and termination method. Key considerations for selection:

Mechanical Compatibility: Both connectors accommodate card thickness within overlapping ranges (0.054" ~ 0.070"), ensuring proper contact engagement and retention.

Electrical Performance: Gold-plated contacts on both parts provide equivalent signal integrity and corrosion resistance. Contact material differences (phosphor bronze versus copper alloy) do not affect substitution viability within the specified electrical parameters.

Regulatory Status: The 356-006-520-102 achieves ROHS3 compliance, addressing modern regulatory requirements where the original part does not. Both parts maintain REACH unaffected status and EAR99 export classification.

Temperature Operating Range: The substitute part operates -40°C ~ 105°C, which covers the majority of standard industrial applications. Applications requiring the full -55°C lower temperature limit of the original part require evaluation against actual system requirements.

Availability: The 356-006-520-102 is classified as active product with confirmed inventory (1080 pcs), ensuring long-term procurement viability compared to the obsolete original.

Frequently Asked Questions (FAQ)

Q: Can the 356-006-520-102 directly replace the EB73S-SB0640X in existing designs?

A: Yes, for applications operating within -40°C to 105°C. The substitute maintains identical pitch (0.156"), position count (12), row configuration (2), and flange geometry. Through-hole solder termination and gold contact finish ensure equivalent electrical and mechanical performance.

Q: What is the significance of the card thickness range difference?

A: The EB73S-SB0640X accepts 0.054" ~ 0.071" thickness; the 356-006-520-102 accepts 0.054" ~ 0.070". The overlap range (0.054" ~ 0.070") covers standard PCB thicknesses. Cards exceeding 0.070" thickness are incompatible with the substitute.

Q: Does the contact material difference (phosphor bronze vs. copper alloy) affect performance?

A: No. Both materials, when gold-plated, provide equivalent electrical conductivity and corrosion resistance for this connector class. The substitution is valid from an electrical standpoint.

Q: Why is the operating temperature range narrower for the substitute?

A: The 356-006-520-102 operates -40°C ~ 105°C versus the original -55°C ~ 125°C. For applications requiring the full temperature extremes of the original part, this difference must be evaluated against actual system operating conditions.

Q: What packaging format is the substitute available in?

A: The 356-006-520-102 is supplied in bulk packaging, suitable for production assembly and component procurement workflows.

Q: Are both parts RoHS compliant?

A: The EB73S-SB0640X is RoHS non-compliant. The 356-006-520-102 is ROHS3 compliant, meeting current regulatory standards for electronic components in restricted substance directives.

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