Molex 0740591021 VHDM 60-Position Backplane Connector Header

Part Overview

The Molex 0740591021 is a 60-position VHDM backplane connector header with male pins, designed for through-hole PCB mounting. This component features a shielded design with gold-plated contacts and is rated for 2A current at 120V across an operating temperature range of -55°C to 105°C.

The 0740591021 carries an obsolete product status. Identifying qualified substitute parts ensures design continuity and supply chain reliability for applications requiring this connector specification.

Substiute Parts

0740591021

MolexIn Stock: 11550740591021 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 0740591021 is determined by strict equivalence across the following critical parameters:

• Connector type, style, and position count (Header, Male Pins, VHDM Guide Right, 60 positions)
• Physical configuration (6 rows × 10 columns, 0.079" pitch)
• Mounting and termination method (Through Hole, Press-Fit)
• Electrical ratings (2A current, 120V voltage)
• Operating temperature range (-55°C to 105°C)
• Contact finish specification (Gold, 30.0µin thickness)
• Shielded design with UL94 V-0 flammability rating

The substitute parts 0740591001 and 0740599001 maintain identical electrical, mechanical, and environmental specifications. Both are active products with improved RoHS3 compliance status compared to the obsolete original part.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts 0740591001 and 0740599001 provide direct functional equivalence to the obsolete 0740591021 across all electrical, mechanical, and environmental parameters. The primary distinction between the original and substitute parts is regulatory compliance status.

The 0740591021 is RoHS non-compliant, while both substitute parts achieve ROHS3 compliance. For new designs or applications subject to RoHS regulations, either 0740591001 or 0740599001 is appropriate. Both substitute parts maintain active product status, ensuring ongoing availability and supply chain support.

Packaging differences exist between the substitute parts (both supplied in Tube packaging), but this does not affect functional or electrical compatibility. Selection between 0740591001 and 0740599001 may be determined by inventory availability or procurement preferences, as both parts are electrically and mechanically identical.

Frequently Asked Questions (FAQ)

Q: Can 0740591001 or 0740599001 directly replace 0740591021 in existing designs?

A: Yes. Both substitute parts maintain identical electrical ratings (2A, 120V), mechanical configuration (60 positions, 2.00mm pitch, through-hole mounting), contact specifications (gold finish, 30.0µin thickness), and operating temperature range (-55°C to 105°C). Direct substitution is supported without design modification.

Q: What is the difference between 0740591001 and 0740599001?

A: Both parts are electrically and mechanically identical. The parts differ only in packaging (both supplied in Tube format) and potentially in manufacturing lot or inventory source. Both are ROHS3 compliant active products.

Q: Why is the original 0740591021 marked as obsolete?

A: The 0740591021 carries obsolete status, indicating it is no longer in active production. The substitute parts 0740591001 and 0740599001 represent the current active alternatives within the VHDM 74059 series.

Q: Are there any compliance differences between the original and substitute parts?

A: Yes. The 0740591021 is RoHS non-compliant, while both 0740591001 and 0740599001 are ROHS3 compliant. Both substitute parts maintain REACH Unaffected status and EAR99 ECCN classification, matching the original part's regulatory profile in these areas.

Q: What parameters must remain constant for substitution to be valid?

A: Connector type (Header, Male Pins), style (VHDM, Guide Right), position count (60), pitch (2.00mm), mounting method (Through Hole), termination (Press-Fit), current rating (2A), voltage rating (120V), operating temperature range (-55°C to 105°C), and contact finish specification (Gold, 30.0µin) must all remain unchanged for functional equivalence.