Molex 0452800402 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0452800402 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 a 4-position, 2-row configuration with 0.118" (3.00mm) pitch and shrouded 4-wall design. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement.

Substiute Parts

0452800402

MolexIn Stock: 7720452800402 Datasheet

Current PartRFQ

0452800452

MolexIn Stock: 12090452800452 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0452800452 qualifies as a direct substitute for the 0452800402 based on the following critical parameters that determine functional interchangeability:

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

The primary distinction between these parts is product status and compliance posture, not electrical or mechanical function.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0452800452 is the direct active equivalent for the obsolete 0452800402. Both connectors maintain identical electrical and mechanical specifications across all critical parameters, ensuring functional interchangeability in board-to-board and cable applications.

The 0452800452 offers the advantage of active product status, ensuring ongoing availability and supply chain continuity. Additionally, the 0452800452 achieves ROHS3 compliance, whereas the 0452800402 is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components in regulated industries including medical and telecommunications applications.

Minor differences in post contact finish composition (Tin versus Tin-Lead) and finish thickness do not affect functional compatibility, as both formulations meet the UL94 V-0 flammability requirement and maintain the same contact material base (Copper Alloy) with identical mating surface finish (Gold).

Frequently Asked Questions (FAQ)

Q: Are the 0452800402 and 0452800452 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including pitch (0.118" / 3.00mm), row spacing, position count, shrouding design, and mounting method (Through Hole). They are direct mechanical substitutes.

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

A: The 0452800402 uses Tin-Lead finish at 100.0µin (2.54µm) thickness, while the 0452800452 uses Tin finish at 10.0µin (0.25µm) thickness. Both finishes are compatible with the Copper Alloy contact material and do not affect mating surface performance, which uses identical Gold plating on both parts.

Q: Why is the 0452800402 listed as obsolete?

A: The 0452800402 is obsolete due to its RoHS non-compliant status. The 0452800452 represents the current active production equivalent with ROHS3 compliance, meeting modern regulatory requirements.

Q: Can I use the 0452800452 in applications originally designed for the 0452800402?

A: Yes. The 0452800452 maintains full compatibility across all electrical and mechanical parameters. It is suitable for the same applications: General Purpose, Medical, Military, and Telecommunications.

Q: What packaging is available for the substitute part?

A: The 0452800452 is supplied in Tray packaging, which is standard for production quantities of this connector series.

Q: Are there any compliance or certification differences?

A: The 0452800452 is ROHS3 compliant, whereas the 0452800402 is RoHS non-compliant. Both maintain identical UL94 V-0 flammability ratings and are suitable for Medical, Military, and Telecommunications applications. The improved compliance status of the 0452800452 makes it the preferred choice for new designs and ongoing procurement.