Molex 0553595029 CompactFlash® Card Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0553595029 is a 50-position CompactFlash® Type I/II surface mount right-angle card connector with gold plating. This connector is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part features board and card guides with reverse-bottom mounting configuration suitable for embedded memory card applications.

Substiute Parts

0553595029

MolexIn Stock: 12080553595029 Datasheet

Current PartRFQ

N7E50-N516RB-40-WF

3MIn Stock: 3075N7E50-N516RB-40-WF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0553595029 is determined by the following critical parameters:

• Card Type Compatibility: CompactFlash® Type I/II standard
• Position Count: 50 positions (electrical interface requirement)
• Mounting Configuration: Surface mount, right-angle orientation
• Mechanical Features: Board guide and card guide presence
• Contact Material: Gold plating for signal integrity
• Insertion Method: Push-in/pull-out mechanism
• Mounting Feature: Reverse-bottom configuration

The 3M N7E50-N516RB-40-WF meets all these criteria and is classified as an active product, providing long-term availability for replacement designs.

Parameter Comparison

Engineering Selection Recommendations

The 3M N7E50-N516RB-40-WF is the qualified substitute for the obsolete Molex 0553595029. Both connectors maintain identical electrical and mechanical specifications for CompactFlash® Type I/II applications with 50-position interfaces.

Key considerations for selection:

• Product Status: The 3M part is active and maintains current manufacturing support, ensuring long-term availability compared to the obsolete Molex part.
• Compliance: Both parts meet RoHS requirements and REACH unaffected status, suitable for regulated applications.
• Physical Dimensions: The 3M substitute has a 0.012" (0.30mm) greater height above board. PCB layout verification is required to confirm clearance compatibility.
• Contact Plating: The 3M part features thicker gold plating (30.0µin vs. 8.00µin), providing enhanced contact durability and wear resistance.
• Packaging: The 3M part is supplied in cut tape format, standard for production environments.

Frequently Asked Questions (FAQ)

Q: Can the 3M N7E50-N516RB-40-WF directly replace the Molex 0553595029 on existing PCBs?

A: Electrical compatibility is confirmed. The 0.30mm height difference requires verification that component clearance and card insertion depth remain within design tolerances. Mechanical fit testing is recommended for existing designs.

Q: Are there differences in contact reliability between these parts?

A: The 3M substitute provides thicker gold plating (30.0µin vs. 8.00µin), which typically results in improved contact resistance stability and extended operational life under repeated insertion cycles.

Q: What is the significance of the product status difference?

A: The Molex part is obsolete and subject to discontinuation. The 3M part is active and maintains current production, ensuring component availability for new designs and long-term support.

Q: Are both parts suitable for the same CompactFlash® applications?

A: Yes. Both connectors support CompactFlash® Type I and Type II standards with identical 50-position electrical interfaces, push-in/pull-out insertion methods, and reverse-bottom mounting configurations.

Q: What packaging formats are available?

A: The 3M substitute is supplied in cut tape format. The Molex part inventory status indicates new original stock availability, though procurement should prioritize the active 3M alternative for new designs.