Molex 0787301005 DDR4 DIMM Memory Connector Equivalent & Substitute Parts

Part Overview

The Molex 0787301005 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

0787301005

MolexIn Stock: 7510787301005 Datasheet

Current PartRFQ

2128254002

MolexIn Stock: 10322128254002 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0787301005 is determined by strict alignment of electrical and mechanical parameters. The following criteria establish compatibility:

Critical Parameters (Must Match Exactly):

• Connector Style: DIMM format
• Number of Positions: 288 positions
• Memory Type: DDR4 SDRAM
• Pitch: 0.85mm
• Mounting Type: Surface Mount
• Standards Compliance: MO-309

Important Parameters (Must Match or Exceed):

• Contact Finish: Gold plating
• Contact Finish Thickness: 30.0µin (0.76µm) minimum
• Mounting Feature: Normal, Standard - Top orientation
• Card Thickness: 0.055" (1.40mm) compatibility
• Height: 0.571" (14.50mm) or equivalent
• RoHS Compliance: Required

Substitute parts must satisfy all critical parameters and maintain compatibility with the important parameters to ensure functional equivalence in DDR4 DIMM socket applications.

Parameter Comparison

Engineering Selection Recommendations

Molex 2128254002 as Primary Substitute:

The Molex 2128254002 qualifies as a direct substitute for the Molex 0787301005 based on complete alignment of all critical electrical and mechanical parameters. Both connectors share 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 substitute part maintains equivalent contact finish specifications (gold plating at 30.0µin thickness) and mounting orientation (Normal, Standard - Top). The Molex 2128254002 incorporates an enhanced feature set with Board Lock functionality in addition to latches, providing additional mechanical retention capability.

Product Status Consideration:

The main part (0787301005) carries Last Time Buy status, indicating production discontinuation. The substitute part (2128254002) maintains Active product status with confirmed inventory availability (924 pieces), ensuring long-term procurement viability and supply chain continuity.

Compliance Status:

The main part is explicitly RoHS Compliant. The substitute part's RoHS status is not specified in the provided data. Verification of RoHS compliance for the Molex 2128254002 through official Molex documentation is required for applications with mandatory RoHS requirements.

Frequently Asked Questions (FAQ)

Q: Can the Molex 2128254002 be used as a direct replacement for the Molex 0787301005 in DDR4 DIMM socket applications?

A: Yes. Both connectors meet identical specifications for DIMM connector style, 288-position configuration, DDR4 SDRAM memory type, 0.85mm pitch, surface mount mounting, and MO-309 standards compliance. Contact finish specifications (gold plating at 30.0µin thickness) and mounting orientation are equivalent.

Q: What is the primary difference between these two connectors?

A: The Molex 2128254002 includes Board Lock functionality in addition to latches, providing enhanced mechanical retention compared to the latch-only design of the 0787301005. The substitute part maintains Active product status, whereas the main part is Last Time Buy.

Q: Are there any compatibility concerns with PCB layout or footprint?

A: Both connectors share identical mounting features (Normal, Standard - Top orientation) and are designed for surface mount assembly. PCB footprints and layout requirements are equivalent. No redesign is necessary for substitution.

Q: What is the significance of the Last Time Buy status on the main part?

A: Last Time Buy status indicates that the Molex 0787301005 is no longer in active production. This classification necessitates identification of substitute components for ongoing designs and legacy product support. The Molex 2128254002 provides continuity with Active product status.

Q: Is RoHS compliance maintained with the substitute part?

A: The main part (0787301005) is explicitly RoHS Compliant. The RoHS status of the substitute part (2128254002) is not specified in the provided technical data. Confirmation of RoHS compliance for the substitute through official Molex documentation is necessary for applications with regulatory RoHS requirements.

Q: Are there inventory considerations for these parts?

A: The main part has 712 pieces in stock with Last Time Buy status. The substitute part has 924 pieces in stock with Active product status, providing greater long-term availability and procurement flexibility.

Q: What standards govern these DDR4 DIMM connectors?

A: Both connectors comply with MO-309 standards, which define the electrical and mechanical specifications for DDR4 SDRAM DIMM socket connectors.