Molex 0452801003 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0452801003 is a Micro-Fit 3.0 series rectangular connector header designed for through-hole mounting in board-to-board or cable applications. This connector features 10 positions arranged in 2 rows with 0.118" (3.00mm) pitch and shrouded 4-wall construction. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement.

Substiute Parts

0452801003

MolexIn Stock: 12430452801003 Datasheet

Current PartRFQ

0452801053

MolexIn Stock: 9080452801053 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0452801053 qualifies as a direct substitute based on the following critical parameters that determine functional and mechanical compatibility:

• Identical series designation (Micro-Fit 3.0 BMI CPI 45280)
• Matching connector type (Header) and contact type (Male Pin)
• Identical position count (10 positions in 2 rows)
• Identical pitch specifications (0.118" / 3.00mm mating pitch and row spacing)
• Identical mounting method (Through Hole)
• Identical shrouding configuration (Shrouded - 4 Wall)
• Identical fastening type (Push-Pull)
• Matching insulation and contact materials
• Identical flammability rating (UL94 V-0)
• Same application categories (General Purpose, Medical, Military, Telecommunications)

The primary distinction is product status: the 0452801003 is obsolete while the 0452801053 is active, with improved compliance status and updated contact finish specifications.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0452801053 is the direct active equivalent for the obsolete 0452801003. Both connectors maintain identical mechanical and electrical interface specifications, ensuring pin-for-pin compatibility in existing designs.

The 0452801053 offers improved regulatory compliance with ROHS3 certification, whereas the 0452801003 is RoHS non-compliant. The contact finish on the post has been updated from Tin-Lead to Tin, reflecting current manufacturing standards and environmental regulations.

For new designs or component replacement in existing systems, the 0452801053 is the appropriate selection. The active product status ensures ongoing availability, technical support, and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Are the 0452801003 and 0452801053 mechanically interchangeable?

A: Yes. Both connectors share identical dimensions, pitch specifications (0.118" / 3.00mm), row spacing, mounting method (through-hole), and shrouding configuration. They are direct mechanical substitutes.

Q: What is the difference in contact finish between these parts?

A: The 0452801003 uses Tin-Lead finish on the post, while the 0452801053 uses Tin finish. Both maintain identical gold plating on the mating contact surface at 30.0µin (0.76µm) thickness. The post finish change reflects current environmental and manufacturing standards.

Q: Why is the 0452801003 listed as obsolete?

A: The 0452801003 has been superseded by the 0452801053, which offers improved regulatory compliance (ROHS3 certification) and updated contact finish specifications. Molex has transitioned production to the newer part number.

Q: Can I use the 0452801053 in place of the 0452801003 in existing designs?

A: Yes. The 0452801053 is a direct functional and mechanical equivalent. No design modifications are required for substitution.

Q: What packaging is available for the 0452801053?

A: The 0452801053 is supplied in Tray packaging, compared to the 0452801003 which had no specified packaging designation.

Q: Are both parts suitable for medical and military applications?

A: Both connectors are rated for General Purpose, Medical, Military, and Telecommunications applications. They meet UL94 V-0 flammability requirements and maintain MSL 1 (Unlimited) moisture sensitivity levels, supporting use in these demanding environments.