Molex 0452802003 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0452802003 is a shrouded header connector from the Micro-Fit 3.0 BMI CPI 45280 series, designed for through-hole board-to-board or cable applications. This connector features 20 positions arranged in 2 rows with 0.118" (3.00mm) pitch and is rated for general purpose, medical, military, and telecommunications applications. The part is currently listed as obsolete, making identification of suitable substitutes essential for ongoing design support and component procurement.

Substiute Parts

0452802003

MolexIn Stock: 11960452802003 Datasheet

Current PartRFQ

0452802053

MolexIn Stock: 8000452802053 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0452802053 qualifies as a direct substitute for the 0452802003 based on the following critical parameters:

• Identical connector type, contact type, and gender (Header, Male Pin)
• Matching position count and row configuration (20 positions, 2 rows)
• Identical mating pitch and row spacing (0.118" / 3.00mm)
• Same mounting method and shrouding design (Through Hole, Shrouded - 4 Wall)
• Identical fastening mechanism (Push-Pull)
• Matching insulation material and flammability rating (Polyamide/Nylon Glass Filled, UL94 V-0)
• Same series designation (Micro-Fit 3.0 BMI CPI 45280)
• Identical applications scope (General Purpose, Medical, Military, Telecommunications)

The primary distinction between these parts is product status and compliance certification, not functional or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0452802053 is the appropriate substitute for the obsolete 0452802003. Both connectors are functionally and mechanically identical across all critical parameters that determine interchangeability. The 0452802053 offers the advantage of active product status, ensuring continued availability and supply chain support.

The 0452802053 achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. This compliance improvement is significant for applications subject to regulatory requirements in electronics manufacturing and end-use markets. The contact finish on the post differs (Tin versus Tin-Lead), reflecting modern lead-free manufacturing standards while maintaining electrical performance characteristics.

Selection of the 0452802053 is supported by identical electrical and mechanical specifications, matching series designation, and equivalent application scope across general purpose, medical, military, and telecommunications sectors.

Frequently Asked Questions (FAQ)

Q: Are the 0452802003 and 0452802053 mechanically interchangeable?

A: Yes. Both connectors share identical dimensions, pitch specifications, mounting methods, and shrouding design. They are direct mechanical substitutes with no board layout or mechanical redesign required.

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

A: The 0452802003 uses Tin-Lead finish on the post, while the 0452802053 uses Tin finish. Both finishes provide equivalent electrical performance. The Tin finish on the 0452802053 reflects compliance with lead-free manufacturing standards.

Q: Does the RoHS compliance difference affect compatibility?

A: No. RoHS compliance is a manufacturing and regulatory attribute, not a functional characteristic. The 0452802053 meets ROHS3 standards, making it suitable for applications with regulatory compliance requirements. The electrical and mechanical performance remains identical.

Q: Can the 0452802053 be used in applications originally designed for the 0452802003?

A: Yes. The 0452802053 is a direct substitute with identical connector specifications, contact configuration, and application scope. No design modifications are necessary.

Q: What packaging is available for the 0452802053?

A: The 0452802053 is supplied in Tray packaging, suitable for automated assembly and component handling processes.

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

A: Yes. Both the 0452802003 and 0452802053 are rated for medical, military, general purpose, and telecommunications applications, with identical UL94 V-0 flammability ratings and material specifications.