Molex 0442480073 Modular Connector Jack - Equivalent & Substitute Parts

Part Overview

The Molex 0442480073 is a modular connector jack designed for 6-position 6-contact (6p6c) applications including RJ11, RJ12, RJ14, and RJ25 standards. This component features a 90° right-angle orientation with through-hole solder termination and unshielded Cat3 rating. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

0442480073

MolexIn Stock: 7270442480073 Datasheet

Current PartRFQ

0438146621

MolexIn Stock: 175210438146621 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0442480073 is based on strict equivalence across the following critical parameters:

• Connector type: Jack configuration
• Contact configuration: 6p6c (RJ11, RJ12, RJ14, RJ25 compatible)
• Port count: 2 ports
• Orientation: 90° right-angle
• Termination method: Solder
• Shielding: Unshielded
• Electrical rating: Cat3
• Contact material and finish: Phosphor Bronze with gold plating (50.0µin)
• Temperature range: -40°C to 85°C
• Compliance: ROHS3 Compliant

The Molex 0438146621 meets all these criteria and is designated as the manufacturer-recommended substitute.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0438146621 is the manufacturer-recommended substitute for the obsolete 0442480073. Both components maintain identical electrical and mechanical specifications across all critical parameters including contact configuration, orientation, termination method, and operating temperature range. Both parts are ROHS3 compliant and carry unlimited moisture sensitivity classification.

The primary distinction is product status: the 0442480073 is obsolete while the 0438146621 is active production. The 0438146621 offers expanded mounting flexibility with both panel mount and through-hole options, compared to through-hole only for the original part. Housing material differs between the two designs (PBT polyester versus PA nylon), though both are glass-filled thermoplastic materials meeting the same functional requirements.

For new designs and ongoing system support, the 0438146621 is the appropriate selection due to active availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the 0438146621 directly replace the 0442480073 in existing designs?

A: Yes. Both components share identical electrical ratings (6p6c, Cat3, unshielded), contact specifications (phosphor bronze with 50.0µin gold plating), and operating temperature range (-40°C to 85°C). The 0438146621 supports both panel mount and through-hole installation, providing compatibility with through-hole applications of the original part.

Q: What is the difference in housing material between these parts?

A: The 0442480073 uses polybutylene terephthalate (PBT) polyester, while the 0438146621 uses polyamide (PA) nylon. Both materials are glass-filled thermoplastics suitable for the specified operating temperature range and environmental conditions.

Q: Are both parts RoHS compliant?

A: Yes. Both the 0442480073 and 0438146621 are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity classification.

Q: Why is the 0442480073 listed as obsolete?

A: The 0442480073 has been discontinued by Molex. The 0438146621 represents the active production equivalent and is the recommended replacement for procurement and design purposes.

Q: What packaging is available for the substitute part?

A: The 0438146621 is supplied in tube packaging. The original 0442480073 packaging specification was not provided.