TE Connectivity AMP Connectors 748483-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 748483-5 is a 78 Position D-Sub High Density Receptacle connector with female sockets, designed for through-hole right-angle solder termination applications. This connector features a 4-row configuration in shell size 5 (DD, D) high density layout with gold-plated phosphor bronze contacts rated at 2A per contact and 125V operating voltage.

The 748483-5 is classified as an obsolete product. Locating equivalent substitute parts is necessary to support legacy system maintenance, repair, and field replacement requirements where original inventory is depleted or unavailable.

Substiute Parts

748483-5

TE Connectivity AMP ConnectorsIn Stock: 863748483-5 Datasheet

Current PartRFQ

634-078-663-032

Mercury United Electronics, Inc.In Stock: 884634-078-663-032 Datasheet

DirectRFQ

634-078-263-032

Mercury United Electronics, Inc.In Stock: 1302634-078-263-032 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 748483-5 are identified based on strict electrical and mechanical parameter compatibility. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Connector type: D-Sub, High Density Receptacle, Female Sockets
• Position count: 78 positions
• Row configuration: 4 rows
• Shell size and layout: 5 (DD, D) High Density
• Mounting configuration: Through Hole, Right Angle
• Termination method: Solder
• Shell material and finish: Steel, Nickel Plated
• Contact finish: Gold plating
• Flange feature: Housing/Shell (4-40)

Identified Substitute Parts:

1. Mercury United Electronics, Inc. 634-078-663-032 — Direct functional equivalent with matching core electrical and mechanical specifications
2. Mercury United Electronics, Inc. 634-078-263-032 — Functionally compatible substitute with enhanced current rating and additional mounting features

Both substitute parts maintain the 78-position, 4-row, high-density D-Sub receptacle configuration with gold-plated contacts, steel nickel-plated shells, and solder termination suitable for direct replacement in legacy applications.

Parameter Comparison

Engineering Selection Recommendations

Mercury United Electronics 634-078-263-032 is the preferred substitute for the obsolete TE Connectivity 748483-5 based on the following engineering criteria:

1. Product Status: The Mercury 634-078-263-032 is classified as Active, ensuring continued availability and manufacturer support for future procurement and technical inquiries.

2. Regulatory Compliance: The Mercury 634-078-263-032 is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The original TE Connectivity 748483-5 is RoHS non-compliant, making the Mercury substitute the appropriate choice for new installations and systems requiring regulatory adherence.

3. Mechanical Compatibility: Both the Mercury 634-078-263-032 and the original part share identical core mechanical specifications: 78-position, 4-row, high-density D-Sub receptacle configuration with through-hole right-angle solder termination, steel nickel-plated shells, gold-plated contacts, and 4-40 housing/shell flange features.

4. Enhanced Performance: The Mercury 634-078-263-032 provides a higher current rating of 3A per contact compared to the original 2A rating, offering improved electrical capacity for demanding applications.

5. Additional Features: The Mercury 634-078-263-032 includes mounting brackets and shielding features not present in the original part, providing enhanced mechanical stability and electromagnetic interference protection.

Mercury United Electronics 634-078-663-032 serves as an alternative substitute where inventory availability of the 634-078-263-032 is constrained. This part maintains identical core mechanical and electrical specifications with the original TE Connectivity 748483-5.

Frequently Asked Questions (FAQ)

Q: Can the Mercury 634-078-263-032 be used as a direct replacement for the TE Connectivity 748483-5 in existing assemblies?

A: Yes. Both connectors share identical mechanical mounting configurations (through-hole, right-angle solder termination), shell sizes (5 DD/D high density), position counts (78 positions, 4 rows), and contact finishes (gold-plated). The Mercury part is mechanically and electrically compatible for direct substitution in legacy applications.

Q: What is the difference between the Mercury 634-078-663-032 and 634-078-263-032?

A: Both Mercury parts are 78-position, 4-row, high-density D-Sub receptacles with identical core specifications. The 634-078-263-032 provides a higher current rating (3A per contact versus unspecified for the 663-032), includes mounting brackets and shielding features, and is classified as an Active product with ROHS3 compliance. The 634-078-663-032 is a direct functional equivalent with matching specifications to the original TE Connectivity part.

Q: Does the Mercury 634-078-263-032 have a lower operating temperature range than the original TE Connectivity 748483-5?

A: The Mercury 634-078-263-032 operates from -55°C to 85°C, while the original TE Connectivity 748483-5 operates from -55°C to 105°C. Applications requiring operation above 85°C must evaluate thermal requirements against the substitute part's specifications.

Q: Are the Mercury substitute parts RoHS compliant?

A: The Mercury 634-078-263-032 is ROHS3 Compliant. The original TE Connectivity 748483-5 is RoHS non-compliant. For applications subject to RoHS regulations, the Mercury 634-078-263-032 is the appropriate substitute.

Q: What is the packaging format for the Mercury substitute parts?

A: The Mercury 634-078-263-032 is supplied in Tray packaging. The Mercury 634-078-663-032 packaging format is not specified in available documentation.

Q: Can the Mercury 634-078-263-032 be used in applications requiring 125V operation?

A: The voltage rating for the Mercury 634-078-263-032 is not specified in available documentation. Applications with specific voltage requirements should be evaluated against the original TE Connectivity 748483-5 specification of 125V or confirmed with the Mercury manufacturer.

Q: What is the contact finish thickness specification for the Mercury substitute parts?

A: The Mercury 634-078-663-032 contact finish thickness is not specified. The Mercury 634-078-263-032 specifies Flash contact finish thickness. The original TE Connectivity 748483-5 specifies 30.0µin (0.76µm) contact finish thickness.

Q: Are the dielectric materials equivalent between the original and substitute parts?

A: The original TE Connectivity 748483-5 uses Polybutylene Terephthalate (PBT), Polyester, Glass Filled dielectric material. The Mercury 634-078-263-032 uses Polyester Thermoplastic dielectric material. Both materials meet UL94 V-0 flammability requirements and are suitable for high-density D-Sub applications.