Molex 0740621073 VHDM 80-Position Backplane Connector Header

Part Overview

The Molex 0740621073 is an 80-position male header connector in the VHDM 74062 series, designed for through-hole PCB mounting applications. This connector features a shielded design with gold-plated contacts and is rated for 3A current at 120V operating voltage across a temperature range of -55°C to 105°C.

The 0740621073 is classified as obsolete. Locating equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and meet current regulatory compliance requirements, particularly RoHS3 standards for new production applications.

Substiute Parts

0740621073

MolexIn Stock: 10650740621073 Datasheet

Current PartRFQ

0740621001

MolexIn Stock: 10190740621001 Datasheet

MFR RecommendedRFQ

0740629042

MolexIn Stock: 7540740629042 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Molex 0740621073 is determined by strict equivalence across the following critical parameters:

• Connector type, style, and orientation (Header, Male Pins, VHDM, Guide Right)
• Position count and configuration (80 positions, 8×10 arrangement)
• Pitch specification (0.079" / 2.00mm)
• Mounting and termination method (Through Hole, Press-Fit)
• Electrical ratings (3A current, 120V voltage)
• Operating temperature range (-55°C to 105°C)
• Contact material and finish (Gold plating)
• Shielding and flammability characteristics (Shielded, UL94 V-0)

The identified substitute parts maintain full electrical and mechanical compatibility with the original specification. Both substitute parts are active products with current RoHS3 compliance, addressing the regulatory gap of the obsolete original part.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts—0740621001 and 0740629042—provide direct functional equivalence to the obsolete 0740621073. Selection between the two substitutes should be based on packaging and inventory availability:

• 0740621001: Packaged in Tube format with 951 units in stock. Suitable for standard procurement workflows.
• 0740629042: Packaged in Tube format with 703 units in stock. Equivalent alternative with lower current inventory.

Both substitutes carry ROHS3 compliance and REACH Unaffected status, meeting modern regulatory requirements. The transition from the non-compliant original part to either substitute ensures compliance with current environmental and safety standards without requiring design modifications.

Frequently Asked Questions (FAQ)

Q: Are the substitute parts electrically and mechanically identical to the original 0740621073?

A: Yes. Both substitute parts maintain identical electrical ratings (3A, 120V), mechanical configuration (80 positions, 2.00mm pitch, 8×10 arrangement), mounting method (through-hole press-fit), and contact specifications (gold plating, 30.0µin thickness). All three parts belong to the same VHDM 74062 series.

Q: What is the primary difference between the original and substitute parts?

A: The original 0740621073 is obsolete and non-RoHS compliant. The substitute parts 0740621001 and 0740629042 are active products with ROHS3 compliance and REACH Unaffected status, ensuring compliance with current environmental regulations.

Q: Can I use either substitute part interchangeably?

A: Yes. Both 0740621001 and 0740629042 are fully interchangeable with the original part and with each other. Selection should be based on packaging preference and inventory availability.

Q: Are there any packaging differences between the substitutes?

A: Both substitute parts are packaged in Tube format. The primary distinction is inventory quantity: 0740621001 has 951 units available, while 0740629042 has 703 units available.

Q: Do the substitute parts require any PCB design modifications?

A: No. The substitute parts maintain identical pitch (0.079" / 2.00mm), position count (80), configuration (8×10), and through-hole mounting specifications. No PCB layout changes are required.

Q: What certifications do the substitute parts carry?

A: Both substitute parts carry UL94 V-0 flammability rating, ROHS3 compliance, and REACH Unaffected status. These certifications meet current industrial and regulatory standards.