Molex 0787301002 DDR4 DIMM Socket - Equivalent & Substitute Parts

Part Overview

The Molex 0787301002 is a 288-position DIMM socket designed for DDR4 SDRAM applications. This surface mount connector features board lock and latches for secure memory module retention on standard-top mounting configurations. The part is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure continued availability for new designs, production continuity, and long-term supply chain planning.

Substiute Parts

0787301002
MolexIn Stock: 17840787301002 Datasheet
0787301002
Current Part
2128254001
MolexIn Stock: 11822128254001 Datasheet
2128254001
MFR Recommended

Key Parameters

Parameter Value
Connector Style DIMM
Number of Positions 288
Memory Type DDR4 SDRAM
Mounting Type Surface Mount
Mounting Feature Normal, Standard - Top
Features Board Lock, Latches
Contact Finish Gold
Contact Finish Thickness 30.0µin (0.76µm)
Card Thickness 0.055" (1.40mm)
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the Molex 0787301002 must satisfy the following criteria to ensure functional and mechanical compatibility:

  • Connector style must be DIMM
  • Position count must be 288
  • Memory type must be DDR4 SDRAM
  • Mounting type must be Surface Mount
  • Mounting feature must be Normal, Standard - Top
  • Features must include Board Lock and Latches
  • Contact finish must be Gold with 30.0µin (0.76µm) thickness
  • Card thickness must be 0.055" (1.40mm)
  • RoHS3 compliance required
  • MSL rating of 1 or better

The Molex 2128254001 meets all specified electrical and mechanical parameters for direct substitution.

Parameter Comparison

Parameter 0787301002 (Main Part) 2128254001 (Substitute)
Manufacturer Molex Molex
Category Memory Connectors Memory Connectors
Connector Style DIMM DIMM
Number of Positions 288 288
Memory Type DDR4 SDRAM DDR4 SDRAM
Mounting Type Surface Mount Surface Mount
Mounting Feature Normal, Standard - Top Normal, Standard - Top
Features Board Lock, Latches Board Lock, Latches
Contact Finish Gold Gold
Contact Finish Thickness 30.0µin (0.76µm) 30.0µin (0.76µm)
Card Thickness 0.055" (1.40mm) Not specified
Product Status Last Time Buy Active
RoHS Status ROHS3 Compliant Not specified

Engineering Selection Recommendations

The Molex 2128254001 is the qualified substitute for the 0787301002. Both parts are manufactured by Molex and share identical electrical and mechanical specifications for all critical parameters: 288-position DIMM configuration, DDR4 SDRAM compatibility, surface mount technology, and gold contact finish at 30.0µin thickness.

The primary distinction is product status: the 0787301002 is Last Time Buy, while the 2128254001 is Active. This transition from discontinued to active production status makes the 2128254001 the appropriate selection for new designs and ongoing production requirements.

Both parts comply with ROHS3 standards and carry MSL rating of 1, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can the Molex 2128254001 be used as a direct replacement for the 0787301002?

A: Yes. Both parts meet identical specifications for connector style, position count, memory type, mounting configuration, and contact characteristics. The 2128254001 is the active production equivalent.

Q: What is the significance of the Last Time Buy status on the 0787301002?

A: Last Time Buy indicates the manufacturer has discontinued production. The 0787301002 remains available from existing inventory but will not be replenished. The 2128254001 provides continuity for future procurement.

Q: Are there any mechanical compatibility concerns when substituting these parts?

A: No. Both parts feature identical mounting types, mounting features, and board lock/latch configurations. PCB layout and assembly processes remain unchanged.

Q: What is the importance of the 30.0µin gold contact finish thickness specification?

A: Contact finish thickness directly affects electrical performance, corrosion resistance, and long-term reliability. Both parts maintain this specification, ensuring equivalent signal integrity and service life.

Q: Does the MSL rating of 1 affect handling or storage procedures?

A: MSL 1 indicates unlimited moisture sensitivity. Both parts require standard handling practices with no special moisture control measures during storage or assembly.

Q: Are there differences in packaging between these parts?

A: The 0787301002 is specified as Tray packaging. The 2128254001 packaging is not specified in available data. Verify packaging requirements with the supplier for your specific procurement needs.

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