EB72S-SA1540X Equivalent & Substitute Parts

Part Overview

The EB72S-SA1540X is a 30-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, solder eyelet termination, and panel mount configuration suitable for applications requiring reliable edge card interfacing.

The EB72S-SA1540X is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this connector type.

Substiute Parts

EB72S-SA1540X

Vishay DaleIn Stock: 1044EB72S-SA1540X Datasheet

Current PartRFQ

306-015-500-102

Mercury United Electronics, Inc.In Stock: 1117306-015-500-102 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EB72S-SA1540X is determined by the following critical parameters that must remain consistent:

• Number of Positions: 30 positions (fixed requirement)
• Pitch: 0.156" (3.96mm) (fixed requirement)
• Card Type: Dual Edge configuration (fixed requirement)
• Gender: Female (fixed requirement)
• Number of Rows: 2 rows (fixed requirement)
• Termination: Solder Eyelet(s) (fixed requirement)
• Mounting Type: Panel Mount (fixed requirement)
• Card Thickness Compatibility: Acceptable range 0.054" ~ 0.071" (1.37mm ~ 1.80mm)

The substitute part 306-015-500-102 (Mercury United Electronics, Inc.) meets all critical substitution criteria. This part maintains identical position count, pitch, dual-edge configuration, female gender, row count, termination method, and mounting type. Card thickness tolerance of 0.054" ~ 0.070" (1.37mm ~ 1.78mm) overlaps with the original specification, ensuring mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 306-015-500-102 (Mercury United Electronics, Inc.) is the qualified substitute for the obsolete EB72S-SA1540X. This substitution is supported by:

• Product Status: The substitute is classified as Active, ensuring ongoing availability and supply chain support compared to the obsolete original part.
• Compliance: The substitute meets ROHS3 compliance requirements, whereas the original part is RoHS non-compliant. This provides regulatory advantage for new designs and systems subject to RoHS directives.
• Mechanical Compatibility: All critical dimensional and functional parameters align, including position count, pitch, card type, gender, row configuration, termination method, and mounting type.
• Card Thickness Tolerance: The substitute's card thickness range (0.054" ~ 0.070") is compatible with the original specification range (0.054" ~ 0.071"), with overlap across the full lower tolerance and most of the upper tolerance.
• Operating Temperature: The substitute operates across -40°C ~ 105°C, which is narrower than the original -55°C ~ 125°C range. Applications requiring the full original temperature range must evaluate this limitation.

Frequently Asked Questions (FAQ)

Q: What makes 306-015-500-102 a valid substitute for EB72S-SA1540X?

A: Both connectors share identical critical parameters: 30 positions, 0.156" pitch, dual-edge configuration, female gender, 2 rows, solder eyelet termination, and panel mount design. Card thickness tolerance ranges are compatible, and flange features match exactly.

Q: Are there differences in contact material between the original and substitute?

A: Yes. The EB72S-SA1540X uses phosphor bronze contacts, while the 306-015-500-102 uses copper alloy contacts. Both are gold-plated. The substitute specifies contact finish thickness of 10.0µin (0.25µm).

Q: Does the operating temperature difference affect substitution?

A: The substitute operates across -40°C ~ 105°C, compared to the original -55°C ~ 125°C. Applications requiring operation below -40°C or above 105°C must evaluate whether the substitute meets thermal requirements.

Q: What is the significance of the RoHS compliance difference?

A: The original EB72S-SA1540X is RoHS non-compliant, while the substitute 306-015-500-102 is ROHS3 compliant. For applications subject to RoHS regulations or environmental directives, the substitute provides regulatory compliance.

Q: Are the card thickness tolerances fully compatible?

A: The substitute card thickness range (0.054" ~ 0.070") overlaps substantially with the original (0.054" ~ 0.071"). The substitute accommodates cards up to 0.070", while the original accepts up to 0.071". Cards within 0.054" ~ 0.070" are compatible with both.

Q: What is the difference between "Single" and "Dual" read-out specifications?

A: The original EB72S-SA1540X specifies "Single" read-out, while the substitute 306-015-500-102 specifies "Dual" read-out. This parameter relates to contact engagement sequencing. Both connectors maintain the same 30-position, dual-edge configuration and are mechanically compatible.

Q: Is the substitute available in the same packaging as the original?

A: The substitute is supplied in Bulk packaging. Original packaging information for the EB72S-SA1540X is not specified in the available data.