TE Connectivity 747948-1 D-Sub Plug 25 Position IDC Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 747948-1 is a 25 position D-Sub plug connector with male pins, designed for IDC (Insulation Displacement Contact) and discrete wire termination. This connector belongs to the AMPLIMITE HDE-20 series and features a shielded design with cable-side male jackscrew flange. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The substitute part maintains functional compatibility while offering improved product status and regulatory compliance.

Substiute Parts

747948-1

TE Connectivity AMP ConnectorsIn Stock: 1011747948-1 Datasheet

Current PartRFQ

1-747948-5

TE Connectivity AMP ConnectorsIn Stock: 11131-747948-5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 1-747948-5 is classified as a direct equivalent based on the following critical parameters that determine substitution validity:

Electrical Compatibility Parameters:

• Identical connector style (D-Sub) and type (Plug, Male Pins)
• Matching position count (25 positions) and row configuration (2 rows)
• Identical shell size and connector layout (3, DB, B)
• Equivalent voltage rating (250V)
• Matching operating temperature range (-55°C ~ 105°C)
• Identical wire gauge specification (26-30 AWG)

Mechanical Compatibility Parameters:

• Identical mounting type (Free Hanging, In-Line)
• Matching termination method (IDC, Discrete Wire)
• Identical flange feature (Cable Side, Male Jackscrew 4-40)
• Equivalent shell material and finish (Steel, Tin Plated)
• Matching contact material (Phosphor Bronze)
• Identical contact finish (Gold)

Functional Feature Parameters:

• Identical feature set (Backshell, Cover, Grounding Indents, Mounting Screws, Shielded)
• Equivalent contact type (Signal)

The substitute part differs only in product status (Active versus Obsolete), packaging format (Bulk), and regulatory compliance status (RoHS3 Compliant versus RoHS non-compliant), with no impact on electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Production: The substitute part 1-747948-5 is the appropriate selection for all new applications. This part maintains complete electrical and mechanical compatibility with the original 747948-1 while offering the advantage of active product status, ensuring long-term availability and supply chain continuity.

For Regulatory Compliance: The substitute part 1-747948-5 carries ROHS3 compliance certification, whereas the original part 747948-1 is RoHS non-compliant. Organizations operating under RoHS regulatory requirements must transition to the substitute part. The original part remains suitable only for legacy systems where RoHS compliance is not mandated.

For Existing Installations: The original part 747948-1 remains functionally equivalent for maintenance and repair of existing equipment. The substitute part provides a direct replacement without modification to existing connector interfaces, backshells, or cable assemblies.

Inventory and Supply Chain: The substitute part 1-747948-5 is currently in active production with 1100 pieces in stock, compared to the obsolete status of 747948-1 with 982 pieces remaining. For long-term supply assurance, transition to the substitute part is recommended.

Frequently Asked Questions (FAQ)

Q: Can 1-747948-5 be used as a direct replacement for 747948-1 in existing assemblies?

A: Yes. The substitute part 1-747948-5 is electrically and mechanically identical to 747948-1 across all critical parameters including connector geometry, pin configuration, termination method, voltage rating, and operating temperature range. No modifications to existing cable assemblies, backshells, or mating connectors are required.

Q: What is the difference between the two part numbers?

A: The parts are functionally equivalent. The primary differences are product status (747948-1 is obsolete; 1-747948-5 is active), regulatory compliance (1-747948-5 is ROHS3 compliant; 747948-1 is not), and packaging format (1-747948-5 is supplied in bulk). All electrical and mechanical specifications are identical.

Q: Are there any compatibility issues with IDC termination between the two parts?

A: No. Both parts support identical IDC (Insulation Displacement Contact) and discrete wire termination methods with matching wire gauge specifications (26-30 AWG). Termination tooling and procedures are interchangeable.

Q: Does the substitute part support the same voltage and temperature ratings?

A: Yes. Both parts are rated for 250V operation and function across the identical temperature range of -55°C to 105°C. Current rating varies by wire gauge in both cases.

Q: Is the shielding configuration identical between the two parts?

A: Yes. Both parts feature identical shielding with grounding indents, backshell, cover, and mounting screws. The cable-side male jackscrew flange (4-40) is identical on both parts.

Q: What is the significance of the RoHS compliance difference?

A: The substitute part 1-747948-5 is ROHS3 compliant, meeting current European Union Restriction of Hazardous Substances regulations. The original part 747948-1 is non-compliant. For applications subject to RoHS requirements, the substitute part is mandatory. For legacy systems without RoHS mandates, both parts remain functionally equivalent.

Q: Can I mix 747948-1 and 1-747948-5 in the same system?

A: Yes. Both parts are electrically and mechanically compatible and can be used interchangeably within the same system or application without performance degradation or interface issues.

Q: What is the contact finish specification for both parts?

A: Both parts feature gold contact finish. The original part specifies 30.0µin (0.76µm) thickness; the substitute part does not specify thickness but maintains gold finish for equivalent electrical performance and corrosion resistance.