Molex 1731091689 D-Sub Connector Equivalent & Substitute Parts

Part Overview

The Molex 1731091689 is an FCT D-Sub position connector classified as obsolete. As an obsolete product, sourcing original inventory becomes increasingly difficult. The substitute part 1731090387 provides functional continuity for applications requiring D-Sub connector solutions with compatible electrical and mechanical specifications.

Substiute Parts

1731091689

MolexIn Stock: 8621731091689 Datasheet

Current PartRFQ

1731090387

MolexIn Stock: 8061731090387 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 1731090387 qualifies as a direct equivalent based on the following critical parameters:

• Connector Category & Style: Both are D-Sub, D-shaped connectors within the Molex FCT 173109 series
• Electrical Configuration: 9-position plug with male pins, matching the original connector layout
• Mechanical Compatibility: Shell size 1 (DE, E) and panel mount configuration ensure physical interchangeability
• Environmental Rating: Identical Moisture Sensitivity Level (MSL 1 - Unlimited) supports equivalent reliability in storage and deployment
• Compliance Standards: Both meet RoHS3 compliance and REACH requirements, ensuring regulatory alignment

Parameter Comparison

Engineering Selection Recommendations

The Molex 1731090387 is the appropriate substitute for the obsolete 1731091689 based on:

• Product Status Alignment: The substitute is active and currently manufactured, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: RoHS3 compliance of the substitute meets modern environmental standards, while the main part status is not specified
• Series Continuity: Both components belong to the Molex FCT 173109 series, maintaining design consistency within connector families
• Electrical & Mechanical Equivalence: Identical connector configuration (9-position D-Sub plug, panel mount, shell size 1) ensures direct functional replacement

Frequently Asked Questions (FAQ)

Q: Can the 1731090387 directly replace the 1731091689 in existing designs?

A: Yes. Both connectors share identical electrical configuration (9-position D-Sub plug), mechanical mounting (panel mount), and shell size (1, DE/E). The substitute maintains full compatibility with applications designed for the original part.

Q: What is the primary reason for substitution?

A: The 1731091689 is classified as obsolete. The 1731090387 is an active product within the same Molex FCT 173109 series, providing assured availability and manufacturing support.

Q: Are there compliance differences between the two parts?

A: The substitute 1731090387 is explicitly RoHS3 compliant and REACH affected. The original part's compliance status is not specified. Both maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What are the electrical specifications of the substitute?

A: The 1731090387 is rated for 5A current and operates across -55°C to 130°C temperature range. These specifications were not provided for the original part.

Q: Does packaging differ between the parts?

A: The substitute is supplied in bulk packaging. Original packaging information for the 1731091689 was not specified.