TE Connectivity 747956-1 D-Sub Connector Housing Equivalent & Substitute Parts

Part Overview

The TE Connectivity 747956-1 is a D-Sub connector housing plug designed for 25-position male contact applications. This component functions as the shell assembly for D-Sub connectors in the AMPLIMITE HDP-20 series, featuring a shielded design with backshell and grounding indents for signal-level applications.

The 747956-1 carries an obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this connector housing is specified or currently deployed.

Substiute Parts

747956-1

TE Connectivity AMP ConnectorsIn Stock: 828747956-1 Datasheet

Current PartRFQ

1658659-1

TE Connectivity AMP ConnectorsIn Stock: 12671658659-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 747956-1 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: D-Sub
• Connector Type: Plug for Male Contacts
• Number of Positions: 25
• Number of Rows: 2
• Shell Size, Connector Layout: 3 (DB, B)
• Series: AMPLIMITE HDP-20
• Mounting Type: Free Hanging (In-Line)
• Flange Feature: Cable Side (4-40)
• Shell Material, Finish: Steel, Tin Plated
• Dielectric Material: Polyamide (PA), Nylon, Glass Filled
• Features: Backshell, Grounding Indents, Shielded

The substitute part 1658659-1 maintains complete alignment with all mandatory parameters, ensuring mechanical and electrical compatibility with applications originally specified for the 747956-1.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement Applications:

The 1658659-1 serves as the direct substitute for the obsolete 747956-1. Both parts are manufactured by TE Connectivity and belong to the AMPLIMITE HDP-20 series. All mechanical and electrical parameters are identical, ensuring form, fit, and function compatibility.

Product Status Consideration:

The 747956-1 is classified as obsolete, while the 1658659-1 maintains active product status. The active status of 1658659-1 ensures continued availability, technical support, and manufacturing consistency for new procurements and ongoing supply chain requirements.

Compliance Differentiation:

The 747956-1 is RoHS non-compliant, whereas the 1658659-1 is ROHS3 compliant. Applications subject to RoHS3 regulatory requirements must utilize the 1658659-1. For legacy systems without RoHS compliance mandates, either part satisfies the functional specification.

Shell Finish Specification:

The 1658659-1 provides explicit shell finish thickness specification of 200µin (5.08µm), whereas the 747956-1 does not document this parameter. This specification in the substitute part provides additional process control documentation.

Frequently Asked Questions (FAQ)

Q: Can the 1658659-1 replace the 747956-1 in existing assemblies?

A: Yes. The 1658659-1 is a direct functional equivalent. All mechanical dimensions, contact positions, mounting features, and electrical characteristics are identical. No design modifications are required.

Q: What is the primary reason to transition from 747956-1 to 1658659-1?

A: The 747956-1 is obsolete. The 1658659-1 is the active equivalent part from TE Connectivity, ensuring long-term availability and supply chain continuity.

Q: Are there compliance differences between these parts?

A: Yes. The 747956-1 is RoHS non-compliant, while the 1658659-1 is ROHS3 compliant. Applications requiring RoHS3 compliance must use the 1658659-1.

Q: Do these parts have different packaging?

A: The 747956-1 packaging is not specified in the documentation. The 1658659-1 is supplied in bulk packaging. Confirm packaging requirements with your procurement specification.

Q: Are contacts included with either part?

A: No. Both the 747956-1 and 1658659-1 are housing assemblies only. Contacts must be procured separately and are not included.

Q: What is the shell size designation for these connectors?

A: Both parts use shell size 3 (DB, B), which is the standard 25-position D-Sub shell size. This designation ensures compatibility with all standard DB-25 contact arrangements.

Q: Can these parts be used interchangeably in new designs?

A: Yes. The 1658659-1 is the recommended choice for new designs due to its active product status and ROHS3 compliance. The 747956-1 should be used only in legacy system maintenance where the original specification is required.