EB72D-SC1060X Equivalent & Substitute Parts

Part Overview

The EB72D-SC1060X is a 40-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 through-hole solder termination. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	EB72D-SC1060X
Manufacturer	Vishay Dale
Category	Card Edge Connectors
Number of Positions	40
Pitch	0.156" (3.96mm)
Gender	Female
Card Type	Dual Edge
Number of Rows	2
Card Thickness Range	0.054" ~ 0.071" (1.37mm ~ 1.80mm)
Mounting Type	Through Hole
Termination	Solder
Contact Material	Phosphor Bronze
Contact Finish	Gold
Contact Type	Full Bellows
Operating Temperature	-55°C ~ 125°C
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the EB72D-SC1060X is determined by strict equivalence across the following critical parameters:

Connector Type & Configuration: 40-position female card edge connector with dual-edge, dual-row design
Pitch Specification: 0.156" (3.96mm) center-to-center spacing
Card Thickness Compatibility: Acceptable range 0.054" ~ 0.071" (1.37mm ~ 1.80mm)
Electrical Interface: Gold-plated contacts for signal integrity and corrosion resistance
Mounting & Termination: Through-hole solder attachment for PCB integration
Environmental Rating: Operating temperature range and moisture sensitivity classification

The substitute part 737-040-520-206 (Mercury United Electronics, Inc.) meets these core functional requirements while maintaining mechanical and electrical compatibility with the original EB72D-SC1060X footprint and interface specifications.

Parameter Comparison

Parameter	EB72D-SC1060X (Vishay Dale)	737-040-520-206 (Mercury)	Compatibility
Number of Positions	40	40	Equivalent
Pitch	0.156" (3.96mm)	0.156" (3.96mm)	Equivalent
Gender	Female	Female	Equivalent
Card Type	Dual Edge	Dual Edge	Equivalent
Number of Rows	2	2	Equivalent
Card Thickness Range	0.054" ~ 0.071" (1.37mm ~ 1.80mm)	0.054" ~ 0.070" (1.37mm ~ 1.78mm)	Compatible (Mercury range within Vishay tolerance)
Mounting Type	Through Hole	Through Hole	Equivalent
Contact Finish	Gold	Gold	Equivalent
Contact Type	Full Bellows	Cantilever	Different contact geometry; both provide electrical continuity
Operating Temperature	-55°C ~ 125°C	-40°C ~ 105°C	Mercury range is narrower; suitable for applications within -40°C ~ 105°C
Termination	Solder	Press-Fit	Different termination method; both provide through-hole PCB attachment
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Mercury part meets modern environmental compliance
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

For applications requiring RoHS compliance: The 737-040-520-206 is the appropriate selection, as it meets ROHS3 compliance standards while the EB72D-SC1060X does not.

For applications with extended low-temperature requirements below -40°C: The EB72D-SC1060X maintains specifications to -55°C, whereas the 737-040-520-206 is rated to -40°C minimum. Verify application temperature envelope before substitution.

For applications with high-temperature requirements above 105°C: The EB72D-SC1060X maintains specifications to 125°C, whereas the 737-040-520-206 is rated to 105°C maximum. Verify application temperature envelope before substitution.

For PCB assembly process compatibility: The EB72D-SC1060X uses solder termination, while the 737-040-520-206 uses press-fit termination. Confirm PCB design and assembly process compatibility with the selected termination method.

For contact geometry considerations: The EB72D-SC1060X uses full bellows contacts, while the 737-040-520-206 uses cantilever contacts. Both designs provide electrical continuity; selection depends on specific insertion force and retention requirements.

Frequently Asked Questions (FAQ)

Q: Can the 737-040-520-206 directly replace the EB72D-SC1060X in all applications?

A: The 737-040-520-206 is mechanically and electrically compatible for applications operating within -40°C to 105°C. Applications requiring operation below -40°C or above 105°C require verification against the EB72D-SC1060X extended temperature range. Additionally, the termination method differs (press-fit vs. solder), requiring PCB design confirmation.

Q: What is the significance of the different contact types (full bellows vs. cantilever)?

A: Both contact geometries provide electrical continuity and are suitable for card edge connector applications. Full bellows contacts (EB72D-SC1060X) and cantilever contacts (737-040-520-206) differ in insertion force characteristics and contact retention. Selection depends on specific mechanical and electrical requirements of the application.

Q: Does the narrower card thickness tolerance of the 737-040-520-206 affect compatibility?

A: The 737-040-520-206 accepts card thickness from 0.054" to 0.070" (1.37mm to 1.78mm), which is within the EB72D-SC1060X specification range of 0.054" to 0.071" (1.37mm to 1.80mm). Cards designed for the EB72D-SC1060X at or below 0.070" thickness are compatible with the 737-040-520-206.

Q: What is the impact of RoHS compliance differences?

A: The EB72D-SC1060X is RoHS non-compliant, while the 737-040-520-206 is ROHS3 compliant. For new designs or applications subject to RoHS regulations, the 737-040-520-206 is the required selection. For legacy systems, the EB72D-SC1060X may remain acceptable depending on regulatory requirements.

Q: Are there any differences in moisture sensitivity between these parts?

A: Both parts are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

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