Molex 0441930009 Modular Connector Jack – Equivalent & Substitute Parts

Part Overview

The Molex 0441930009 is a Jack Modular Connector with 6 positions, 4 contacts (6p4c) configuration, commonly known as RJ11/RJ14 standard. It features a 90° right-angle orientation, surface mount design, and unshielded construction rated for Cat4 applications. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning.

Substiute Parts

0441930009

MolexIn Stock: 9880441930009 Datasheet

Current PartRFQ

0441930004

MolexIn Stock: 10030441930004 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0441930009 is determined by strict equivalence across the following critical parameters:

• Connector Type & Configuration: Jack, 6p4c (RJ11/RJ14) standard
• Physical Form Factor: Surface mount, 90° right-angle orientation, 2 ports, single row
• Electrical Interface: Solder termination, unshielded, Cat4 rating
• Material & Environmental Compliance: Polyamide housing with phosphor bronze gold-plated contacts, operating range -40°C to 70°C, ROHS3 compliant

The substitute part Molex 0441930004 meets all these criteria. Variations in contact finish thickness (30.0µin vs. 50.0µin) and packaging format (bulk vs. tape & reel) do not affect functional substitutability, as both maintain equivalent electrical and mechanical performance within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0441930004 is the direct functional equivalent for the obsolete Molex 0441930009. Both parts are ROHS3 compliant and maintain identical electrical and mechanical specifications across all critical parameters. The substitute part is currently in active production status with confirmed inventory availability (927 pcs), ensuring reliable procurement for new designs and legacy system support.

The increased contact finish thickness (50.0µin vs. 30.0µin) in the substitute part provides enhanced contact durability and wear resistance without altering electrical performance or mechanical fit. This represents an engineering improvement suitable for extended operational life.

Packaging differences (tape & reel for the substitute vs. bulk for the original) do not affect component functionality and reflect standard manufacturing practices for active production parts.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0441930004 be used as a direct replacement for the 0441930009 in existing PCB designs?

A: Yes. Both parts share identical connector type, pin configuration (6p4c RJ11/RJ14), mounting method (surface mount), orientation (90° right-angle), and termination (solder). PCB footprints and assembly processes require no modification.

Q: What is the significance of the contact finish thickness difference?

A: The substitute part features 50.0µin (1.27µm) gold plating compared to 30.0µin (0.76µm) on the original. This increased thickness enhances contact durability and resistance to wear during mating cycles, with no impact on electrical performance or mechanical compatibility.

Q: Why is the original part classified as obsolete?

A: Molex 0441930009 has been discontinued in favor of the 0441930004, which is the current active production equivalent. The substitute maintains full functional parity while offering improved contact durability.

Q: Are there packaging considerations when switching to the substitute part?

A: The substitute is supplied in tape & reel (TR) format, standard for active production parts. The original was available in bulk packaging. This affects procurement and handling procedures but does not impact component performance or PCB assembly compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the Molex 0441930009 and 0441930004 are ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity level), ensuring equivalent environmental and regulatory compliance.

Q: What is the operating temperature range for both parts?

A: Both parts operate across the identical temperature range of -40°C to 70°C, suitable for standard industrial and commercial applications.