Molex 0740622521 VHDM 200-Position Backplane Connector Header

Part Overview

The Molex 0740622521 is a 200-position VHDM backplane connector header designed for through-hole PCB mounting. This component features male pins with shielded construction, gold-plated contacts, and press-fit termination. The part is classified as obsolete, necessitating identification of active substitute components that maintain electrical and mechanical compatibility for ongoing production and field replacement applications.

Substiute Parts

0740622521

MolexIn Stock: 10840740622521 Datasheet

Current PartRFQ

0740622501

MolexIn Stock: 12100740622501 Datasheet

MFR RecommendedRFQ

0740622504

MolexIn Stock: 23780740622504 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0740622521 is determined by strict equivalence across the following parameters:

• Connector Configuration: 200 positions, 8 rows × 25 columns
• Pitch and Spacing: 0.079" (2.00mm) pitch
• Connector Type and Style: Header with male pins, VHDM style with guide right orientation
• Mounting and Termination: Through-hole PCB mounting with press-fit termination
• Electrical Characteristics: 3A current rating, 120V voltage rating
• Physical Properties: Shielded construction, gold contact finish, black color
• Environmental Ratings: UL94 V-0 flammability, -55°C to 105°C operating range, MSL 1

The identified substitute parts maintain complete equivalence across all specified parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts 0740622501 and 0740622504 provide direct functional equivalence to the obsolete 0740622521 across all electrical and mechanical parameters. The primary distinction between the substitutes and the original part is product status and regulatory compliance.

The original part 0740622521 carries obsolete status and non-compliant RoHS classification. Both substitute parts maintain active product status with ROHS3 compliance and REACH unaffected designation, supporting continued procurement for new designs and field replacement applications.

Selection between the two substitute options should be based on inventory availability and packaging requirements. Part 0740622504 maintains higher stock levels (2360 pcs) compared to 0740622501 (1133 pcs), while both are supplied in tube packaging.

Frequently Asked Questions (FAQ)

Q: Are parts 0740622501 and 0740622504 electrically and mechanically interchangeable with 0740622521?

A: Yes. Both substitute parts maintain complete equivalence across connector configuration, pitch, position count, mounting type, termination method, electrical ratings, and environmental specifications. Direct substitution is supported without circuit or PCB design modification.

Q: What is the primary reason for substituting the 0740622521?

A: The original part carries obsolete product status and RoHS non-compliant classification. The substitute parts provide active availability with ROHS3 compliance, supporting regulatory requirements and supply chain continuity.

Q: Do the substitute parts require different PCB footprints or mounting procedures?

A: No. The substitute parts maintain identical pitch (0.079" / 2.00mm), position count (200), row/column configuration (8 × 25), and through-hole press-fit termination. Existing PCB designs and assembly procedures remain unchanged.

Q: What is the difference between parts 0740622501 and 0740622504?

A: Both parts are electrically and mechanically identical. The primary differences are inventory availability and contact finish thickness specification. Part 0740622504 specifies contact finish thickness at 30.0µin (0.76µm), while part 0740622501 does not provide this specification. Part 0740622504 maintains higher stock levels.

Q: Are there any compliance or certification differences between the substitute parts?

A: Both substitute parts carry identical certifications: UL94 V-0 flammability rating, ROHS3 compliance, and REACH unaffected status. Moisture sensitivity level remains MSL 1 (Unlimited) for both parts.