TE Connectivity AMP Connectors 748678-5 D-Sub Backshell Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 748678-5 is a 50 Position Two Piece Backshell Connector with 180° cable exit, designed for D-Sub applications. This component is classified as an accessory backshell for D-shaped connectors in the AMPLIMITE series. The part is currently listed as obsolete, making identification of active equivalent components necessary for ongoing procurement and system maintenance. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct compatibility with existing connector assemblies.

Substiute Parts

748678-5

TE Connectivity AMP ConnectorsIn Stock: 1057748678-5 Datasheet

Current PartRFQ

5748678-5

TE Connectivity AMP ConnectorsIn Stock: 11955748678-5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 748678-5 is determined by strict equivalence across all mechanical and electrical parameters. The primary substitute identified is the 5748678-5, which maintains complete parameter alignment with the original part. Substitution validity is established through the following critical parameters:

• Position Count: Both parts specify 50 positions, ensuring mechanical fit within connector housings
• Shell Size Compatibility: Both parts are compatible with D-shell size connectors and support 50pos and HD78pos D-Sub configurations
• Cable Exit Geometry: Both parts feature 180° cable exit angles, maintaining identical installation geometry
• Material Composition: Both parts use ABS plastic, ensuring equivalent mechanical properties and environmental resistance
• Shielding Configuration: Both parts are unshielded, maintaining identical electromagnetic characteristics
• Hardware Specification: Both parts include identical mating screws (4-40) and assembly hardware

The 5748678-5 differs from the 748678-5 only in product status (Active versus Obsolete), packaging format (Bag versus unspecified), and regulatory compliance status (RoHS3 Compliant versus RoHS non-compliant). These differences do not affect functional or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 5748678-5 is a direct functional equivalent to the 748678-5 and is suitable for all applications requiring a 50-position D-Sub backshell with 180° cable exit. Selection of the 5748678-5 is supported by the following factors:

Product Status: The 5748678-5 maintains Active product status, ensuring continued availability and manufacturer support. The original 748678-5 is classified as Obsolete, limiting future procurement options.

Regulatory Compliance: The 5748678-5 is RoHS3 Compliant, meeting current environmental and hazardous substance restrictions. The original part is RoHS non-compliant. For applications subject to RoHS requirements, the 5748678-5 is the appropriate selection.

Mechanical and Electrical Equivalence: All functional parameters remain identical between the two parts. The 5748678-5 maintains the same connector geometry, material composition, shielding characteristics, and hardware specifications as the original part.

Packaging: The 5748678-5 is supplied in Bag packaging, which is standard for connector accessories and does not affect functional performance.

Frequently Asked Questions (FAQ)

Q: Can the 5748678-5 be used as a direct replacement for the 748678-5 in existing assemblies?

A: Yes. The 5748678-5 is mechanically and electrically identical to the 748678-5. All connector interface dimensions, cable exit angles, and hardware specifications are equivalent. Direct substitution is supported without modification to existing connector assemblies.

Q: What is the significance of the product status difference between these parts?

A: The 748678-5 is classified as Obsolete, indicating that TE Connectivity has discontinued active production and support. The 5748678-5 is Active, meaning it is currently manufactured and available for procurement. For new designs or ongoing production, the Active part number should be specified.

Q: Are there any compatibility limitations when substituting the 5748678-5 for the 748678-5?

A: No compatibility limitations exist. Both parts are designed for identical D-Sub connector configurations, support the same position counts (50pos and HD78pos), and feature identical cable exit geometry (180°). The parts are fully interchangeable.

Q: Does the RoHS3 compliance of the 5748678-5 affect its performance compared to the non-compliant 748678-5?

A: No. RoHS3 compliance indicates adherence to hazardous substance restrictions and does not alter electrical or mechanical performance. The 5748678-5 maintains identical functional characteristics while meeting current environmental regulations.

Q: What is the difference in packaging between the two parts?

A: The 748678-5 packaging is unspecified in available documentation. The 5748678-5 is supplied in Bag packaging, which is standard for D-Sub connector accessories. Packaging format does not affect component functionality or compatibility.

Q: Are both parts compatible with HD78pos D-Sub connectors?

A: Yes. Both the 748678-5 and 5748678-5 are compatible with both 50pos and HD78pos D-Sub connector sizes. The backshell design accommodates both standard and high-density D-Sub configurations.

Q: What cable types are supported by these backshells?

A: Both parts are designed for round cable types. The 180° cable exit angle accommodates standard round cable assemblies used in D-Sub connector applications.