Molex 0787302003 DDR4 DIMM Memory Connector Equivalent & Substitute Parts

Part Overview

The Molex 0787302003 is a 288-position DIMM DDR4 SDRAM socket connector designed for surface mount applications. This connector features a 0.85mm pitch design with gold-plated contacts and integrated latches for secure memory module retention. The part is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute components is necessary to support ongoing system designs, legacy product support, and procurement continuity.

Substiute Parts

0787302003

MolexIn Stock: 8170787302003 Datasheet

Current PartRFQ

2128254005

MolexIn Stock: 12822128254005 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0787302003 is determined by strict alignment with the following critical parameters:

Critical Substitution Parameters:

• Connector Style: DIMM format required
• Number of Positions: 288 positions mandatory
• Memory Type: DDR4 SDRAM specification
• Pitch: 0.85mm contact spacing
• Mounting Type: Surface Mount configuration
• Standards Compliance: MO-309 standard adherence

Important Compatibility Parameters:

• Contact Finish: Gold plating
• Contact Finish Thickness: 30.0µin (0.76µm)
• Mounting Feature: Normal, Standard - Top orientation

The Molex 2128254005 qualifies as a substitute component because it maintains identical specifications across all critical parameters and important compatibility parameters. Both connectors are manufactured by Molex, comply with MO-309 standards, and support 288-position DDR4 SDRAM socket applications with surface mount installation.

Parameter Comparison

Engineering Selection Recommendations

Molex 0787302003 (Main Part):

• Product Status: Last Time Buy
• RoHS Compliant
• Suitable for legacy system support and existing inventory management
• Not recommended for new designs due to discontinued production status

Molex 2128254005 (Substitute):

• Product Status: Active
• RoHS Compliant
• Recommended for new designs and ongoing production
• Provides enhanced functionality with Board Lock feature in addition to latches
• Higher inventory availability (1172 Pcs vs. 736 Pcs)
• Maintains full electrical and mechanical compatibility with MO-309 standard

For applications currently using the 0787302003, transition to the 2128254005 is supported by identical critical parameters and enhanced feature set. Both components meet the same standards compliance and RoHS requirements.

Frequently Asked Questions (FAQ)

Q: Can the Molex 2128254005 directly replace the 0787302003 in existing designs?

A: Yes. Both connectors maintain identical specifications for connector style (DIMM), position count (288), memory type (DDR4 SDRAM), pitch (0.85mm), mounting type (surface mount), and standards compliance (MO-309). The 2128254005 includes an additional Board Lock feature while maintaining all original latch functionality.

Q: What is the difference between the two parts?

A: The primary difference is product status and features. The 0787302003 is Last Time Buy (discontinued), while the 2128254005 is Active (current production). The 2128254005 includes Board Lock functionality in addition to latches. All electrical and mechanical parameters remain identical.

Q: Are there any height or dimensional differences between these connectors?

A: Height specification is provided only for the main part (0.571" / 14.50mm). The substitute part specification does not include height data in the provided parameters. For applications with strict height constraints, physical verification is required.

Q: What does MO-309 standard compliance mean?

A: MO-309 is the applicable standard for these DDR4 DIMM socket connectors. Both the 0787302003 and 2128254005 comply with this standard, ensuring compatibility with DDR4 SDRAM memory modules and system designs that reference this specification.

Q: Is the contact finish thickness identical between both parts?

A: Yes. Both connectors feature gold contact finish with 30.0µin (0.76µm) thickness, ensuring equivalent electrical performance and corrosion resistance.

Q: Why would I choose the 2128254005 over the 0787302003?

A: The 2128254005 is the recommended choice for new designs because it is in active production status, has higher inventory availability, and includes enhanced Board Lock functionality. The 0787302003 should be reserved for legacy system support only.