TE Connectivity AMP Connectors 748678-4 D-Sub Backshell Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 748678-4 is a 37 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 37-position D-Sub connectors in the AMPLIMITE series.

The 748678-4 carries an Obsolete product status, making identification of equivalent substitute parts necessary for ongoing procurement and system maintenance. Obsolete components require direct substitution with active production alternatives that maintain identical electrical and mechanical specifications to ensure seamless integration into existing designs.

Substiute Parts

748678-4

TE Connectivity AMP ConnectorsIn Stock: 1077748678-4 Datasheet

Current PartRFQ

5748678-4

TE Connectivity AMP ConnectorsIn Stock: 12335748678-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 748678-4 is determined by strict equivalence across all critical mechanical and electrical parameters. The substitute part must maintain identical specifications in the following categories:

Mechanical Compatibility Parameters:

• Number of Positions: 37
• Compatible Shell Size: C
• Compatible D-Sub Size: 37pos and HD62pos
• Cable Exit Angle: 180°
• Accessory Type: Two Piece Backshell
• Cable Type: Round

Material and Construction Parameters:

• Primary Material: Plastic (ABS)
• Color: Black
• Hardware: Mating Screws 4-40, Assembly Hardware, Grommets
• Shielding: Unshielded

Environmental Parameters:

• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 5748678-4 satisfies all required parameters while offering the additional advantage of Active product status and RoHS Compliance, making it the direct equivalent for the obsolete 748678-4.

Parameter Comparison

Engineering Selection Recommendations

The 5748678-4 is the direct equivalent substitute for the obsolete 748678-4. Both components are manufactured by TE Connectivity AMP Connectors and maintain identical mechanical, electrical, and environmental specifications across all critical parameters.

Selection Basis:

The 5748678-4 provides complete functional equivalence with the following advantages:

• Product Status: Active production status ensures ongoing availability and supply chain continuity
• Regulatory Compliance: RoHS Compliant status satisfies modern environmental and regulatory requirements, whereas the 748678-4 is RoHS non-compliant
• Identical Specifications: All mechanical parameters, material composition, hardware features, and environmental ratings are identical to the obsolete part
• Series Continuity: Both parts belong to the AMPLIMITE series, maintaining design consistency

For applications currently using the 748678-4, direct substitution with the 5748678-4 is supported without design modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the 5748678-4 be used as a direct replacement for the 748678-4?

A: Yes. The 5748678-4 is a direct equivalent substitute. All mechanical specifications, material composition, cable exit angle, position count, shell size compatibility, and hardware features are identical. The substitute part is manufactured by the same supplier and belongs to the same AMPLIMITE series.

Q: What is the difference between the 748678-4 and 5748678-4?

A: The primary differences are product status and regulatory compliance. The 748678-4 is Obsolete and RoHS non-compliant, while the 5748678-4 is Active production and RoHS Compliant. All functional and mechanical specifications remain identical.

Q: Are there packaging differences between these parts?

A: The 748678-4 packaging specification is not provided in the technical data. The 5748678-4 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Is the 5748678-4 compatible with 37-position D-Sub connectors?

A: Yes. The 5748678-4 is compatible with both 37pos and HD62pos D-Sub connectors in Shell Size C. The two-piece backshell design accommodates round cable with 180° exit angle.

Q: Does the substitute part maintain the same hardware specifications?

A: Yes. Both the 748678-4 and 5748678-4 feature identical hardware: Mating Screws 4-40, Assembly Hardware, and Grommets. No hardware modifications are required for substitution.

Q: What is the Moisture Sensitivity Level for the 5748678-4?

A: The Moisture Sensitivity Level is 1 (Unlimited), identical to the 748678-4. This rating indicates no moisture sensitivity restrictions for storage or handling.

Q: Are both parts classified under the same export control and tariff codes?

A: Yes. Both the 748678-4 and 5748678-4 share identical ECCN (EAR99) and HTSUS (8538.90.8180) classifications, ensuring consistent regulatory treatment for export and tariff purposes.