Molex 0740621003 VHDM 80-Position Backplane Connector Header

Part Overview

The Molex 0740621003 is an 80-position VHDM backplane connector header designed for through-hole PCB mounting applications. This component features male pins with shielding, gold-plated contacts, and is rated for 3A current at 120V across an operating temperature range of -55°C to 105°C. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and procurement planning.

Substiute Parts

0740621003

MolexIn Stock: 7980740621003 Datasheet

Current PartRFQ

0740621001

MolexIn Stock: 10190740621001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0740621003 is determined by strict equivalence across the following critical parameters:

Connector configuration: 80-position header with 8 rows and 10 columns at 2.00mm pitch Connector style: VHDM with guide right orientation Connector type: Male pins with through-hole press-fit termination Electrical specifications: 3A current rating, 120V voltage rating Contact system: Gold-plated finish at 30.0µin thickness Physical characteristics: Black color, shielded design Environmental compliance: UL94 V-0 flammability rating, operating range -55°C to 105°C

The substitute part must maintain identical mechanical and electrical characteristics to ensure direct PCB compatibility without design modification.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0740621001 is the direct substitute for the obsolete 0740621003. Both parts are electrically and mechanically identical across all functional parameters. The primary distinction is product status: the 0740621001 is currently in active production, whereas the 0740621003 is obsolete.

The 0740621001 offers the additional advantage of ROHS3 compliance, meeting current regulatory requirements for new designs and procurement. The substitute maintains identical electrical performance, contact specifications, and environmental ratings, ensuring seamless integration into existing PCB designs without modification.

Frequently Asked Questions (FAQ)

Q: Can the 0740621001 be used as a direct replacement for the 0740621003?

A: Yes. Both parts share identical connector configuration, electrical ratings, contact specifications, and physical dimensions. The 0740621001 is the active production equivalent of the obsolete 0740621003.

Q: What is the difference between the two part numbers?

A: The 0740621003 is obsolete and RoHS non-compliant. The 0740621001 is the active production part with ROHS3 compliance. All functional and mechanical specifications are identical.

Q: Does packaging differ between these parts?

A: Yes. The 0740621003 is supplied in bulk packaging, while the 0740621001 is supplied in tube packaging. This does not affect electrical or mechanical compatibility.

Q: Are there any design modifications required when switching from 0740621003 to 0740621001?

A: No. The parts are mechanically and electrically equivalent. PCB footprints, mounting procedures, and electrical connections remain unchanged.

Q: What is the current availability of the 0740621001?

A: The 0740621001 is in active production with 951 pieces in current inventory stock.