Molex 0444720401 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0444720401 is a shrouded vertical header connector with 4 positions at 0.165" (4.20mm) pitch, designed for through-hole board-to-cable/wire applications. This connector features male pins with solder termination and board lock fastening, suitable for automotive, industrial, medical, and telecommunications applications. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance requirements.

Substiute Parts

0444720401

MolexIn Stock: 8120444720401 Datasheet

Current PartRFQ

0444720403

MolexIn Stock: 8300444720403 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0444720403 qualifies as a direct substitute for the 0444720401 based on the following critical parameters:

• Identical connector type, contact type, and pitch (0.165" / 4.20mm)
• Matching position count (4 positions, single row)
• Identical shrouding configuration (Shrouded - 4 Wall)
• Same mounting method (Through Hole) and termination (Solder)
• Identical fastening mechanism (Locking Ramp)
• Matching insulation material (Polyamide PA66, Nylon 6/6)
• Same contact finish specification (Tin plating)
• Both parts belong to the Mini-Fit HCS 44472 series

The primary distinction is product status: the 0444720401 is obsolete, while the 0444720403 maintains active production status with improved availability.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0444720403 is the appropriate substitute for the obsolete 0444720401. Both parts maintain identical electrical and mechanical specifications across all critical parameters, ensuring direct functional equivalence in board-to-cable/wire applications.

The 0444720403 offers the advantage of active production status with confirmed inventory availability (800 pcs), whereas the 0444720401 is no longer manufactured. Both parts satisfy ROHS3 compliance and REACH requirements, maintaining the same regulatory standing for automotive, industrial, medical, and telecommunications applications.

The packaging difference (tray for the substitute versus unspecified for the main part) does not affect electrical or mechanical compatibility and reflects standard modern distribution practices.

Frequently Asked Questions (FAQ)

Q: Are the 0444720401 and 0444720403 electrically identical?

A: Yes. Both connectors share identical pitch (0.165" / 4.20mm), position count (4), contact type (male pin), and contact finish specifications (tin plating at 100.0µin / 2.54µm). They are electrically equivalent.

Q: Can the 0444720403 be used as a direct replacement in existing designs?

A: Yes. The 0444720403 maintains identical mechanical dimensions, mounting type (through hole), termination method (solder), and fastening mechanism (locking ramp). No design modifications are required.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The 0444720401 is obsolete and no longer manufactured, while the 0444720403 is in active production. The 0444720403 is supplied in tray packaging, which is standard for current production.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical flammability ratings (UL94 V-2). They share the same ECCN (EAR99) and HTSUS classification.

Q: Is there any difference in reliability or performance between these connectors?

A: No. Both parts are manufactured by Molex within the same Mini-Fit HCS 44472 series with identical specifications for contact material (copper alloy), insulation material (polyamide PA66), and moisture sensitivity level (MSL 1 - Unlimited).