Molex 0452801603 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0452801603 is a Micro-Fit 3.0 BMI CPI rectangular connector header designed for through-hole mounting in board-to-board or cable applications. This 16-position, 2-row connector with 0.118" (3.00mm) pitch features shrouded 4-wall construction and push-pull fastening. The part is currently obsolete, making identification of active equivalent components essential for ongoing production, maintenance, and design updates.

Substiute Parts

0452801603

MolexIn Stock: 8340452801603 Datasheet

Current PartRFQ

0452801653

MolexIn Stock: 12010452801653 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0452801653 qualifies as a direct substitute for the 0452801603 based on the following critical parameters:

• Identical manufacturer (Molex)
• Identical series (Micro-Fit 3.0 BMI CPI 45280)
• Identical connector type, contact type, and gender (Header, Male Pin)
• Identical position count and row configuration (16 positions, 2 rows)
• Identical mating pitch and row spacing (0.118" / 3.00mm)
• Identical mounting method (Through Hole)
• Identical shrouding and fastening (Shrouded - 4 Wall, Push-Pull)
• Identical insulation geometry and material specifications
• Identical contact material and mating surface finish (Copper Alloy, Gold)
• Identical flammability and environmental ratings (UL94 V-0, MSL 1)

The 0452801653 is an active production part with improved compliance status, making it the recommended replacement for the obsolete 0452801603.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0452801653 is the direct functional equivalent of the 0452801603 and is suitable for replacement in all applications. The 0452801653 offers the following advantages:

• Active production status ensures long-term availability and supply chain continuity
• ROHS3 compliance meets current environmental and regulatory requirements, whereas the 0452801603 is RoHS non-compliant
• Tray packaging provides improved handling and inventory management
• Identical electrical and mechanical specifications ensure drop-in compatibility

For new designs or production updates, the 0452801653 is the recommended selection. For legacy systems currently using the 0452801603, substitution with the 0452801653 is electrically and mechanically compatible.

Frequently Asked Questions (FAQ)

Q: Can the 0452801653 be used as a direct replacement for the 0452801603?

A: Yes. Both connectors share identical electrical and mechanical specifications, including pitch, position count, row configuration, mounting method, shrouding, and contact materials. The 0452801653 is functionally equivalent and compatible with all applications designed for the 0452801603.

Q: What is the difference between the 0452801603 and 0452801653?

A: The primary differences are product status, compliance, and packaging. The 0452801603 is obsolete and RoHS non-compliant, while the 0452801653 is an active production part with ROHS3 compliance. The 0452801653 is supplied in tray packaging. The contact finish on the post differs slightly: the 0452801603 uses Tin-Lead (100.0µin / 2.54µm), while the 0452801653 uses Tin (10.0µin / 0.25µm). Both finishes are compatible with standard soldering processes.

Q: Are there any compatibility concerns when substituting the 0452801653 for the 0452801603?

A: No compatibility concerns exist. Both connectors conform to the Micro-Fit 3.0 BMI CPI 45280 series specification and are mechanically and electrically interchangeable. PCB footprints, mating connector requirements, and assembly processes remain unchanged.

Q: Does the 0452801653 meet current regulatory requirements?

A: Yes. The 0452801653 is ROHS3 compliant and carries UL94 V-0 flammability certification, meeting current environmental and safety standards for medical, military, and telecommunications applications.

Q: What packaging is available for the 0452801653?

A: The 0452801653 is supplied in tray packaging, which is standard for production quantities and provides improved component protection during storage and handling.