EB73D-SC1260X Equivalent & Substitute Parts

Part Overview

The EB73D-SC1260X is a 24-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 functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	EB73D-SC1260X
Manufacturer	Vishay Dale
Category	Card Edge Connectors
Number of Positions	24
Gender	Female
Pitch	0.156" (3.96mm)
Card Type	Dual Edge
Number of Rows	2
Card Thickness Range	0.054" ~ 0.071" (1.37mm ~ 1.80mm)
Contact Material	Phosphor Bronze
Contact Finish	Gold
Contact Type	Full Bellows
Mounting Type	Through Hole
Termination	Solder
Operating Temperature	-55°C ~ 125°C
Color	Black
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the EB73D-SC1260X is determined by strict equivalence across the following critical parameters:

Position Count & Pitch: 24 positions at 0.156" (3.96mm) spacing
Connector Type: Female, dual-edge card edge configuration
Contact System: Phosphor bronze with gold plating, full bellows contact type
Termination Method: Through-hole solder attachment
Mechanical Compatibility: Card thickness acceptance range and flange mounting geometry
Electrical Performance: Operating temperature range and contact material properties

The GMM12DRTH from Sullins Connector Solutions meets these substitution criteria. Both connectors share identical position counts, pitch spacing, contact materials, and termination methods. The GMM12DRTH maintains functional and mechanical compatibility while offering active product status and improved compliance certifications.

Parameter Comparison

Parameter	EB73D-SC1260X (Vishay Dale)	GMM12DRTH (Sullins)	Compatibility
Number of Positions	24	24	Equivalent
Gender	Female	Female	Equivalent
Pitch	0.156" (3.96mm)	0.156" (3.96mm)	Equivalent
Card Type	Dual Edge	Dual Edge	Equivalent
Number of Rows	2	2	Equivalent
Card Thickness	0.054" ~ 0.071" (1.37mm ~ 1.80mm)	0.062" (1.57mm)	Compatible (within range)
Contact Material	Phosphor Bronze	Phosphor Bronze	Equivalent
Contact Finish	Gold	Gold	Equivalent
Contact Type	Full Bellows	Full Bellows	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination	Solder	Solder	Equivalent
Operating Temperature	-55°C ~ 125°C	-65°C ~ 125°C	Compatible (wider range)
Color	Black	Black	Equivalent
Product Status	Obsolete	Active	Substitute available
RoHS Status	Non-compliant	ROHS3 Compliant	Improved compliance

Engineering Selection Recommendations

The GMM12DRTH is the designated substitute for the obsolete EB73D-SC1260X based on functional and mechanical equivalence. Selection of the GMM12DRTH provides the following advantages:

Active Product Status: The GMM12DRTH maintains active manufacturing status, ensuring long-term availability and supply chain continuity.
Enhanced Compliance: ROHS3 compliance and REACH unaffected status meet current regulatory requirements, whereas the EB73D-SC1260X is non-compliant.
Expanded Operating Range: The -65°C to 125°C operating temperature range exceeds the original -55°C to 125°C specification, providing additional thermal margin.
Mechanical Compatibility: The 0.062" (1.57mm) card thickness specification falls within the EB73D-SC1260X acceptance range of 0.054" to 0.071", ensuring direct mechanical fit.
Identical Electrical Interface: Matching position count, pitch, contact material, and gold plating ensure electrical performance equivalence.

Frequently Asked Questions (FAQ)

Q: Can the GMM12DRTH directly replace the EB73D-SC1260X in existing designs?

A: Yes. Both connectors share identical position counts (24), pitch spacing (0.156"), contact materials (phosphor bronze with gold plating), and termination methods (through-hole solder). The GMM12DRTH card thickness specification of 0.062" falls within the EB73D-SC1260X acceptance range, ensuring mechanical compatibility.

Q: What is the primary reason for substitution?

A: The EB73D-SC1260X is classified as obsolete. The GMM12DRTH provides functional equivalence while maintaining active product status and improved regulatory compliance (ROHS3).

Q: Are there differences in flange geometry between these connectors?

A: Minor differences exist in flange diameter specifications. The EB73D-SC1260X specifies 0.128" (3.25mm) diameter, while the GMM12DRTH specifies 0.125" (3.18mm) diameter. Both feature top-opening, unthreaded flanges suitable for through-hole mounting. Verify flange clearance in your specific PCB layout.

Q: Does the GMM12DRTH support the same operating temperature range?

A: The GMM12DRTH operating range (-65°C to 125°C) exceeds the EB73D-SC1260X range (-55°C to 125°C), providing additional low-temperature margin.

Q: What packaging is available for the GMM12DRTH?

A: The GMM12DRTH is supplied in tray packaging, whereas the EB73D-SC1260X packaging type is not specified.

Q: Are both connectors RoHS compliant?

A: No. The EB73D-SC1260X is RoHS non-compliant. The GMM12DRTH is ROHS3 compliant, meeting current environmental and regulatory standards.

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