Molex 1731090839 D-Sub Connector Equivalent & Substitute Parts

Part Overview

The Molex 1731090839 is a 9-position D-Sub right-angle receptacle connector with female sockets, designed for through-hole PCB mounting applications. This connector is classified as obsolete and is no longer in active production. Due to its obsolete status, identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing manufacturing or repair operations for legacy systems utilizing this connector type.

Substiute Parts

1731090839

MolexIn Stock: 7441731090839 Datasheet

Current PartRFQ

1731091216

MolexIn Stock: 9281731091216 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 1731090839 is based on strict alignment of the following critical parameters:

Connector Configuration: The substitute part must maintain a 9-position D-Sub receptacle configuration with female sockets to ensure mechanical and electrical compatibility with existing mating connectors.

Mounting Orientation: Right-angle through-hole mounting is required to match the original PCB layout and spatial constraints of legacy designs.

Shell Size and Layout: Shell size 1 (DE, E) designation must be preserved to ensure proper mating with existing plug connectors and mechanical fit within enclosure designs.

Termination Method: Solder termination is mandatory for compatibility with through-hole PCB assembly processes.

Electrical Ratings: Current rating of 5A and operating temperature range of -55°C to 125°C establish the functional performance envelope for substitution.

Compliance and Material Standards: RoHS3 compliance and UL94 V-0 flammability rating ensure regulatory and safety standard alignment.

The Molex 1731091216 meets all these critical parameters and is classified as an active product with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The Molex 1731091216 is the direct substitute for the obsolete Molex 1731090839. Both connectors share identical electrical and mechanical specifications across all critical parameters, including connector configuration, mounting type, shell size, termination method, and performance ratings.

The primary distinction is product status: the 1731090839 is obsolete and no longer manufactured, while the 1731091216 is an active product with current manufacturing support and documented availability. The 1731091216 carries RoHS3 compliance and maintains all required certifications including UL94 V-0 flammability rating.

For new designs or replacement applications, the 1731091216 is the appropriate selection. For legacy system maintenance where original part numbers must be preserved in documentation, the 1731091216 serves as the functional equivalent with full compatibility assurance.

Frequently Asked Questions (FAQ)

Q: Can the Molex 1731091216 be used as a direct replacement for the 1731090839?

A: Yes. Both connectors are 9-position D-Sub receptacles with identical mounting type (through-hole, right-angle), shell size (1, DE/E), termination method (solder), and electrical ratings (5A, -55°C to 125°C). The 1731091216 is the active production equivalent.

Q: What is the primary reason for substitution?

A: The 1731090839 is classified as obsolete and is no longer in active production. The 1731091216 provides continuity of supply while maintaining full functional and mechanical compatibility.

Q: Are there any differences in packaging or handling?

A: The 1731091216 is supplied in bulk packaging. Both parts carry MSL rating 1 (unlimited moisture sensitivity), indicating no special moisture control requirements during storage or handling.

Q: Do both connectors meet the same compliance standards?

A: The 1731091216 is RoHS3 compliant and carries UL94 V-0 flammability rating. These certifications ensure regulatory compliance for applications requiring environmental and safety standard adherence.

Q: What is the contact material and finish specification?

A: Both connectors feature copper alloy contacts with gold plating. The shell is steel with tin plating. These specifications ensure reliable electrical performance and corrosion resistance.

Q: Are there any restrictions on operating temperature?

A: Both connectors operate across the same temperature range: -55°C to 125°C. No derating or additional thermal management is required when substituting between these parts.