TE Connectivity AMP Connectors 748678-2 D-Sub Backshell Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 748678-2 is a 15 Position Two Piece Backshell Connector with 180° cable exit, manufactured in black ABS plastic for unshielded D-Sub applications. This component functions as a protective and strain relief accessory for D-Sub connectors in the AMPLIMITE series, compatible with both 15-position and HD26-position D-Sub sizes.

The 748678-2 carries an Obsolete product status, necessitating identification of active equivalent components to ensure continued availability and compliance with current manufacturing standards. Substitute parts maintain functional compatibility while offering improved product lifecycle support and updated regulatory compliance.

Substiute Parts

748678-2

TE Connectivity AMP ConnectorsIn Stock: 759748678-2 Datasheet

Current PartRFQ

5748678-2

TE Connectivity AMP ConnectorsIn Stock: 19245748678-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 748678-2 is determined by strict equivalence across all critical mechanical and electrical parameters. The substitute part 5748678-2 maintains identical specifications for:

• Number of positions (15)
• Accessory configuration (Two Piece Backshell)
• Compatible shell size (A)
• Compatible D-Sub sizes (15pos and HD26pos)
• Cable exit orientation (180°)
• Shielding classification (Unshielded)
• Material composition (ABS plastic)
• Color (Black)
• Hardware specification (Assembly Hardware, Grommets, Mating Screws 4-40)
• Moisture sensitivity level (MSL 1)

The primary distinction between the main part and substitute is product status transition from Obsolete to Active, coupled with RoHS compliance upgrade and packaging format change from standard to Bulk.

Parameter Comparison

Engineering Selection Recommendations

The 5748678-2 serves as the direct active equivalent to the obsolete 748678-2 part number. Selection of the substitute part is based on the following engineering criteria:

Product Lifecycle Status: The 748678-2 is classified as Obsolete, indicating discontinued manufacturing and limited long-term availability. The 5748678-2 maintains Active product status, ensuring continued supply chain access and manufacturer support.

Regulatory Compliance: The 5748678-2 achieves RoHS Compliance, meeting current environmental and hazardous substance restrictions applicable to electronic components. The original 748678-2 is RoHS non-compliant, presenting potential regulatory barriers in applications subject to RoHS directives.

Functional Equivalence: Both parts maintain identical mechanical and electrical specifications across all critical parameters, including connector position count, shell size compatibility, cable exit angle, material composition, and hardware configuration. Direct substitution does not require design modification or connector interface changes.

Inventory Availability: The 5748678-2 demonstrates superior inventory availability with 1862 pieces in stock compared to 712 pieces for the obsolete variant, supporting both immediate procurement and long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can the 5748678-2 directly replace the 748678-2 in existing designs?

A: Yes. The 5748678-2 is functionally equivalent to the 748678-2 across all mechanical and electrical parameters. Both components are 15-position two-piece backshells with identical shell size compatibility (A), D-Sub size compatibility (15pos and HD26pos), 180° cable exit orientation, ABS plastic construction, and hardware specifications. No design modification is required.

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

A: The primary differences are product status and regulatory compliance. The 748678-2 is Obsolete and RoHS non-compliant, while the 5748678-2 is Active and RoHS Compliant. Both parts are mechanically and electrically identical.

Q: Are there packaging differences between the 748678-2 and 5748678-2?

A: Yes. The 748678-2 is supplied in standard packaging, while the 5748678-2 is supplied in Bulk packaging. This distinction affects order quantities and handling procedures but does not impact component functionality or compatibility.

Q: Is the 5748678-2 compatible with both 15-position and HD26-position D-Sub connectors?

A: Yes. The 5748678-2 is compatible with both 15-position and HD26-position D-Sub connector sizes through its Shell Size A configuration, identical to the 748678-2.

Q: What is the moisture sensitivity level for the 5748678-2?

A: The moisture sensitivity level is MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling do not require controlled humidity environments.

Q: Are both parts suitable for unshielded applications?

A: Yes. Both the 748678-2 and 5748678-2 are classified as Unshielded backshells, appropriate for unshielded D-Sub connector applications.

Q: What hardware is included with the 5748678-2?

A: The 5748678-2 includes Assembly Hardware, Grommets, and Mating Screws (4-40 specification), identical to the 748678-2.