EB72S-SA2240X Equivalent & Substitute Parts

Part Overview

The EB72S-SA2240X 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 termination via solder eyelets. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support and maintenance applications.

Substiute Parts

EB72S-SA2240X

Vishay DaleIn Stock: 1030EB72S-SA2240X Datasheet

Current PartRFQ

306-022-500-102

Mercury United Electronics, Inc.In Stock: 943306-022-500-102 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EB72S-SA2240X is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 44
• Pitch: 0.156" (3.96mm)
• Card Type: Dual Edge
• Gender: Female
• Number of Rows: 2
• Mounting Type: Panel Mount
• Termination: Solder Eyelet(s)

Compatible Variation Parameters:

• Card Thickness Range: Acceptable if substitute range encompasses or overlaps with 0.054" ~ 0.071" (1.37mm ~ 1.80mm)
• Contact Material: Phosphor Bronze or Copper Alloy acceptable
• Contact Finish: Gold plating required
• Contact Type: Full Bellows or Cantilever acceptable
• Operating Temperature: Substitute range must meet or exceed application requirements

The Mercury United Electronics, Inc. part number 306-022-500-102 qualifies as a direct substitute based on matching all mandatory parameters and maintaining compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The 306-022-500-102 from Mercury United Electronics, Inc. is the qualified substitute for the obsolete EB72S-SA2240X. Selection is based on the following factors:

Compliance and Availability: The substitute part is currently in active production status with 865 pieces available in inventory, addressing the obsolescence of the original component. The Mercury part achieves ROHS3 compliance, providing improved environmental and regulatory alignment compared to the non-compliant original.

Electrical and Mechanical Compatibility: All critical connector parameters align: 44 positions, 0.156" pitch, dual edge configuration, female gender, dual row layout, panel mount installation, and solder eyelet termination. Card thickness accommodation ranges are compatible within acceptable tolerances (0.054" ~ 0.070" versus 0.054" ~ 0.071").

Operating Conditions: The substitute operates across -40°C to 105°C, which represents a reduced temperature range compared to the original -55°C to 125°C specification. Applications requiring operation below -40°C or above 105°C must evaluate this limitation against specific system requirements.

Contact Design Variation: The substitute employs cantilever contact design versus the original full bellows configuration. Both designs provide gold-plated contact surfaces suitable for reliable signal transmission in card edge applications. The copper alloy base material in the substitute maintains electrical performance equivalent to the phosphor bronze original.

Frequently Asked Questions (FAQ)

Q: Can the 306-022-500-102 be used as a direct replacement in existing designs?

A: Yes, the 306-022-500-102 qualifies as a direct mechanical and electrical substitute. All critical parameters match: connector type, position count, pitch spacing, row configuration, and termination method. Physical mounting dimensions and flange features are identical. Verify that your application's operating temperature requirements fall within the -40°C to 105°C range of the substitute.

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

A: Both contact types provide reliable electrical connection in card edge applications. Full bellows contacts use a spring-loaded design with extended contact arms, while cantilever contacts employ a simpler beam design. The cantilever design in the substitute maintains equivalent contact force and signal integrity for standard card edge connector applications.

Q: Does the RoHS3 compliance of the substitute affect compatibility?

A: No. RoHS3 compliance is an environmental and regulatory improvement that does not affect electrical or mechanical compatibility. The substitute's compliance status makes it suitable for applications with environmental or procurement requirements that restrict non-compliant components.

Q: Are there any card thickness limitations when switching to the substitute?

A: The substitute accommodates card thickness from 0.054" to 0.070" (1.37mm to 1.78mm), compared to the original 0.054" to 0.071" (1.37mm to 1.80mm). This represents a 0.001" (0.02mm) reduction at the upper limit. Cards within the substitute's range are fully compatible. Cards exceeding 0.070" thickness require evaluation against the specific connector design.

Q: What is the contact finish thickness specification for the substitute?

A: The 306-022-500-102 specifies 10.0µin (0.25µm) gold plating thickness. This provides durable contact surface protection suitable for repeated mating cycles and environmental exposure in standard card edge connector applications.

Q: How does the operating temperature range affect part selection?

A: The substitute operates from -40°C to 105°C versus the original -55°C to 125°C. Applications operating within the substitute's range experience no limitation. Systems requiring operation below -40°C or above 105°C must either identify alternative substitutes with extended temperature ratings or confirm that the substitute's range meets actual application requirements.

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

A: The substitute is supplied in bulk packaging. Confirm packaging requirements for your procurement and assembly processes.