Molex 0452801802 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0452801802 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 18 positions arranged in 2 rows with 0.118" (3.00mm) pitch and incorporates blind mating and board guide features. The part is currently listed as obsolete, making identification of active equivalent components essential for ongoing design support and procurement.

Substiute Parts

0452801802

MolexIn Stock: 10080452801802 Datasheet

Current PartRFQ

0452801852

MolexIn Stock: 11470452801852 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0452801852 qualifies as a direct substitute for the 0452801802 based on the following critical parameters:

• Identical connector type, contact type, and position configuration (18-position, 2-row header)
• Matching pitch specifications (0.118" mating pitch and row spacing)
• Identical shrouding design (shrouded 4-wall construction)
• Matching mounting method (through-hole) and termination options (press-fit, solder)
• Identical fastening mechanism (push-pull)
• Same insulation material and flammability rating (UL94 V-0)
• Identical series designation (Micro-Fit 3.0 BMI CPI 45280)

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

Parameter Comparison

Engineering Selection Recommendations

The Molex 0452801852 is the appropriate selection for new designs and ongoing procurement due to its active product status and ROHS3 compliance certification. The 0452801802, classified as obsolete, presents supply chain risk and does not meet current regulatory requirements for RoHS3 compliance.

The transition from tin-lead to tin post finish on the substitute part reflects modern manufacturing standards and does not affect mechanical or electrical compatibility, as both finishes maintain the same contact geometry and material composition (copper alloy base).

Both parts maintain identical electrical and mechanical specifications across all critical parameters, ensuring direct functional interchangeability within existing circuit board designs.

Frequently Asked Questions (FAQ)

Q: Can the 0452801852 replace the 0452801802 in existing designs?

A: Yes. Both connectors share identical mechanical dimensions, pitch specifications, contact configurations, and mounting methods. The 0452801852 is mechanically and functionally interchangeable with the 0452801802.

Q: What is the difference between the tin-lead and tin post finishes?

A: The 0452801802 uses tin-lead post finish (100.0µin thickness), while the 0452801852 uses tin post finish (10.0µin thickness). Both finishes provide equivalent contact performance and solderability. The tin finish on the 0452801852 reflects current manufacturing practices and RoHS3 compliance requirements.

Q: Why is the 0452801802 listed as obsolete?

A: The 0452801802 is no longer in active production. The 0452801852 represents the current active equivalent within the Micro-Fit 3.0 series and should be used for all new procurement and design activities.

Q: Are there packaging differences between these parts?

A: The 0452801802 packaging is not specified in the product data. The 0452801852 is supplied in tray packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both connectors meet the same regulatory standards?

A: Both parts carry UL94 V-0 flammability certification and REACH Unaffected status. The 0452801852 additionally meets ROHS3 compliance, while the 0452801802 is RoHS non-compliant. For applications requiring RoHS compliance, the 0452801852 is the required selection.