Equivalent & Substitute Parts: Molex 1731070639

Part Overview

The Molex 1731070639 is a D-Sub, D-shaped connector housing designated as an FCT ML DSUB PLG 3W3 with zinc plating. This component functions as a plug housing for male contacts in D-Sub connector applications. The part is classified as Obsolete, indicating it is no longer in active production. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing system maintenance and repairs.

Substiute Parts

1731070639

MolexIn Stock: 10971731070639 Datasheet

Current PartRFQ

1727040031

MolexIn Stock: 38071727040031 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part Molex 1727040031 is qualified as a direct equivalent based on the following critical parameters:

Matching Functional Parameters:

• Connector Category: D-Sub, D-Shaped Connectors
• Connector Style: D-Sub, Combo
• Connector Type: Plug for Male Contacts Housing
• Number of Positions: 3 (Coax or Power)
• Shell Size, Connector Layout: 2 (DA, A) - 3W3
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 1727040031 maintains identical electrical and mechanical specifications for the connector housing interface. Both parts are designed for the same D-Sub 3-position configuration and are compatible with equivalent contact systems. The substitute part is currently in Active production status, providing reliable supply availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: Molex 1727040031

The Molex 1727040031 is the direct substitute for the obsolete 1731070639. Selection of this part is based on the following engineering criteria:

1. Functional Equivalence: Both parts share identical connector specifications including D-Sub style, 3-position configuration, and 3W3 shell layout. The parts are mechanically and electrically interchangeable for D-Sub plug housing applications.

2. Production Status: The substitute part is in Active production status, ensuring continuous supply availability and long-term component sourcing reliability.

3. Compliance Certifications: The substitute part carries ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

4. Moisture Sensitivity: Both parts maintain MSL 1 (Unlimited) classification, indicating no moisture sensitivity constraints during storage, handling, or assembly.

5. Supply Availability: The substitute part maintains substantial inventory levels (3698 Pcs New Original In Stock), supporting immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Are the Molex 1731070639 and 1727040031 mechanically interchangeable?

A: Yes. Both parts are D-Sub plug housings with identical shell size (2/DA, A) and 3-position configuration (3W3). They share the same mounting type (Free Hanging, In-Line) and are designed for equivalent contact systems.

Q: What is the primary reason for substitution?

A: The Molex 1731070639 is classified as Obsolete and is no longer in active production. The 1727040031 provides an active, production-supported alternative with identical functional specifications.

Q: Does the substitute part require different contact types?

A: Both parts are designed for Coax or Power contacts in 3-position configurations. Contact selection remains consistent between the main part and substitute.

Q: Are there packaging differences between these parts?

A: The substitute part 1727040031 is supplied in Bulk packaging. Packaging configuration should be verified against specific procurement and assembly requirements.

Q: What compliance standards apply to the substitute part?

A: The substitute part 1727040031 is ROHS3 Compliant and REACH Unaffected, meeting current environmental regulations for electronic components.

Q: Is the substitute part suitable for the same operating temperature range?

A: The substitute part 1727040031 operates across -55°C to 130°C, supporting equivalent thermal performance for D-Sub connector applications.