Molex 0740591044 VHDM 60-Position Backplane Connector Header

Part Overview

The Molex 0740591044 is a 60-position VHDM backplane connector header designed for through-hole PCB mounting. This component features male pins with shielded construction, gold-plated contacts, and is rated for 2A current at 120V across an operating temperature range of -55°C to 105°C. The part is currently listed as obsolete, necessitating identification of active substitute components that maintain electrical and mechanical compatibility for ongoing production and field replacement applications.

Substiute Parts

0740591044

MolexIn Stock: 10560740591044 Datasheet

Current PartRFQ

0740591001

MolexIn Stock: 10880740591001 Datasheet

MFR RecommendedRFQ

0740599001

MolexIn Stock: 11610740599001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Molex 0740591044 is determined by strict equivalence across the following critical parameters:

• Connector Type and Style: Header, Male Pins with VHDM, Guide Right configuration
• Position Count and Layout: 60 positions arranged in 6 rows × 10 columns
• Pitch Specification: 0.079" (2.00mm) center-to-center spacing
• Electrical Ratings: 2A current capacity and 120V voltage rating
• Contact Properties: Gold plating at 30.0µin (0.76µm) thickness
• Mounting and Termination: Through-hole PCB mounting with press-fit termination
• Environmental Compliance: UL94 V-0 flammability rating and operating temperature range of -55°C to 105°C
• Shielding: Shielded construction

The identified substitute parts maintain identical electrical and mechanical specifications while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts 0740591001 and 0740599001 provide direct functional equivalence to the obsolete 0740591044 across all electrical and mechanical parameters. The primary differentiators are product status and regulatory compliance:

0740591001 and 0740599001 are both active products with ROHS3 compliance, addressing the regulatory requirements of modern supply chains. The original part 0740591044 is marked as obsolete and carries RoHS non-compliant status, making it unsuitable for new designs or long-term procurement strategies.

Both substitute parts are supplied in tube packaging and maintain identical connector specifications, contact properties, and environmental ratings. Selection between the two substitutes should be based on inventory availability and procurement lead times, as they are functionally interchangeable.

Frequently Asked Questions (FAQ)

Q: Are parts 0740591001 and 0740599001 electrically and mechanically identical to 0740591044?

A: Yes. All three parts share identical electrical ratings (2A, 120V), mechanical configuration (60 positions, 6×10 layout, 2.00mm pitch), contact properties (gold plating, 30.0µin thickness), and environmental specifications (UL94 V-0, -55°C to 105°C operating range).

Q: Why is the original part 0740591044 marked as obsolete?

A: The part has been discontinued by the manufacturer. Substitute parts 0740591001 and 0740599001 are active products that provide equivalent functionality with improved regulatory compliance.

Q: What is the difference between the two substitute parts?

A: Parts 0740591001 and 0740599001 are functionally equivalent. Both are active products with ROHS3 compliance and tube packaging. Differences in inventory levels and part numbering reflect manufacturer product line management but do not affect electrical or mechanical performance.

Q: Can I use these substitutes in existing designs without modification?

A: Yes. The substitute parts maintain identical connector type, pin configuration, pitch, mounting method, and electrical ratings. No PCB layout or circuit modifications are required.

Q: Are there any packaging considerations when switching to the substitute parts?

A: The substitute parts are supplied in tube packaging, whereas the original part packaging was not specified. Verify that tube packaging is compatible with your assembly and handling processes.

Q: What compliance certifications apply to the substitute parts?

A: Both substitute parts are ROHS3 compliant and REACH unaffected. They maintain the UL94 V-0 flammability rating of the original part.