Molex 1731070501 D-Sub Combo Receptacle Connector - Equivalent & Substitute Parts

Part Overview

The Molex 1731070501 is a 24-position D-Sub combo receptacle connector with female sockets, designed for through-hole solder termination. This connector combines 17 signal positions with 7 coax or power positions in a single DD/D shell size (24W7 layout). The part is currently obsolete, making identification of suitable substitutes essential for ongoing system support, maintenance, and component sourcing.

Substiute Parts

1731070501

MolexIn Stock: 10971731070501 Datasheet

Current PartRFQ

1731070086

MolexIn Stock: 10411731070086 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 1731070501 is determined by strict equivalence across the following critical parameters:

• Connector style: D-Sub, Combo configuration
• Connector type: Receptacle with female sockets
• Position count and layout: 24 positions (17 + 7 coax/power) in DD/D shell size (24W7)
• Mounting method: Through-hole solder termination
• Electrical performance: 5A current rating, operating range -55°C to 130°C
• Material specifications: Steel shell, copper alloy contacts with gold finish, polyester glass-filled dielectric
• Compliance: UL94 V-0 flammability rating, MSL 1

The substitute part Molex 1731070086 meets all these criteria, with the primary distinction being active product status and enhanced compliance certifications (RoHS3, REACH).

Parameter Comparison

Engineering Selection Recommendations

The Molex 1731070086 is the direct functional equivalent of the 1731070501. Both connectors share identical electrical and mechanical specifications across all critical parameters: 24-position combo configuration, DD/D shell size, 5A current rating, -55°C to 130°C operating range, and UL94 V-0 compliance.

The primary distinction is product lifecycle status. The 1731070501 is obsolete, while the 1731070086 is active and carries current compliance certifications (RoHS3 Compliant, REACH Affected). The 1731070086 also features tin-plated steel shell finish compared to the unspecified finish of the 1731070501, providing enhanced corrosion resistance.

For new designs, maintenance applications, or systems requiring current regulatory compliance, the 1731070086 is the appropriate selection. Both parts are electrically and mechanically interchangeable within the same PCB footprint and connector interface.

Frequently Asked Questions (FAQ)

Q: Can the 1731070086 directly replace the 1731070501 in existing assemblies?

A: Yes. Both connectors are mechanically and electrically identical across all functional parameters. They share the same 24-position combo configuration, DD/D shell size (24W7), through-hole solder termination, 5A current rating, and operating temperature range (-55°C to 130°C). No PCB redesign or interface modification is required.

Q: What is the significance of the tin-plated shell finish on the 1731070086?

A: The tin-plated steel shell on the 1731070086 provides enhanced corrosion resistance compared to unplated steel. This is particularly beneficial in environments with moisture exposure or extended storage periods. The gold-plated contacts remain identical on both parts.

Q: Why is the 1731070501 listed as obsolete?

A: Obsolescence indicates the part is no longer in active production. The 1731070086 represents the current active equivalent within the same Molex FM/FCT 173107 series, ensuring continued availability and support.

Q: Are there compliance differences between these two parts?

A: The 1731070086 carries explicit RoHS3 and REACH compliance certifications. The 1731070501 specifications do not include these designations. Both parts meet UL94 V-0 flammability requirements and MSL 1 moisture sensitivity levels. For applications requiring documented regulatory compliance, the 1731070086 is the appropriate choice.

Q: What is the packaging difference between these parts?

A: The 1731070501 is specified with undesignated packaging, while the 1731070086 is supplied in bulk packaging. This distinction affects order quantities and handling but does not impact electrical or mechanical performance.