TE Connectivity AMP Connectors 748831-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 748831-1 is a 78 Position D-Sub High Density Receptacle connector with female sockets, designed for through-hole solder termination applications. This connector is part of the AMPLIMITE HD-22 series and features a steel nickel-plated shell with gold-plated contacts rated for 1.5A at 125V operation across a temperature range of -55°C to 105°C.

The 748831-1 is classified as obsolete. Identifying equivalent and substitute parts is necessary to support ongoing maintenance, repair, and legacy system requirements where this connector type remains in use.

Substiute Parts

748831-1

TE Connectivity AMP ConnectorsIn Stock: 1158748831-1 Datasheet

Current PartRFQ

180-078-213R011

NorComp Inc.In Stock: 1293180-078-213R011 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 748831-1 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: D-Sub, High Density
• Connector Type: Receptacle, Female Sockets
• Number of Positions: 78
• Number of Rows: 4
• Shell Size, Connector Layout: 5 (DD, D) High Density
• Termination: Solder

Compatible Variation Parameters:

• Mounting Type: Through Hole variants including Panel Mount Through Hole configurations
• Shell Material, Finish: Steel, Nickel Plated (consistent across substitutes)
• Contact Finish: Gold or Flash gold finishes
• Dielectric Material: Polybutylene Terephthalate (PBT) formulations

The substitute part NorComp Inc. 180-078-213R011 meets all mandatory matching parameters while offering enhanced electrical performance and active product status with modern compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 748831-1 (Original Part): The 748831-1 remains suitable for legacy system maintenance where exact original component replacement is required and inventory is available. However, this part carries obsolete status and RoHS non-compliant certification, limiting its use in new designs and regulated applications.

NorComp Inc. 180-078-213R011 (Substitute Part): The 180-078-213R011 is the recommended substitute for new applications and forward-compatible replacements. This part provides:

• Active product status with ongoing manufacturer support
• ROHS3 compliance for regulated environments
• UL94 V-0 material flammability rating for enhanced safety standards
• Increased current rating of 3A versus 1.5A, providing design margin
• Shielded construction for improved signal integrity
• Panel mount capability in addition to through-hole mounting

The 180-078-213R011 maintains full mechanical and electrical compatibility with the 748831-1 across all critical connector parameters while offering superior compliance and performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the NorComp 180-078-213R011 directly replace the TE Connectivity 748831-1 in existing assemblies?

A: Yes. Both connectors share identical pin counts (78 positions), row configuration (4 rows), shell size (5 DD/D High Density), and solder termination. The 180-078-213R011 includes panel mount capability in addition to through-hole mounting, providing installation flexibility. The higher current rating (3A versus 1.5A) and shielded design represent performance enhancements rather than incompatibilities.

Q: What are the key differences between these two connectors?

A: The primary differences are product status, compliance certifications, and electrical performance. The 748831-1 is obsolete and RoHS non-compliant, while the 180-078-213R011 is active and ROHS3 compliant. The 180-078-213R011 features UL94 V-0 flammability rating, shielded construction, and double the current capacity. Operating temperature ranges differ slightly (-55°C to 105°C for 748831-1 versus -50°C to 100°C for 180-078-213R011).

Q: Are there packaging differences between these connectors?

A: The 748831-1 packaging specification is not provided in available documentation. The 180-078-213R011 is supplied in tray packaging. Confirm packaging requirements with your procurement specifications before ordering.

Q: Does the shielded design of the 180-078-213R011 affect mechanical fit?

A: No. The shielded feature is integrated into the connector design without altering the mechanical envelope or mounting interface. The connector maintains the same shell size and mounting footprint as the 748831-1.

Q: What is the significance of the contact finish difference (30.0µin gold versus flash gold)?

A: Both finishes provide gold contact plating for corrosion resistance and electrical conductivity. The 748831-1 specifies 30.0µin (0.76µm) thickness, while the 180-078-213R011 uses flash plating. Flash plating provides adequate contact protection for signal-level applications and is standard in modern connector designs. Both finishes are suitable for the 1.5A to 3A current range of these connectors.

Q: Is the 180-078-213R011 suitable for applications requiring the full -55°C to 105°C temperature range of the 748831-1?

A: The 180-078-213R011 operates across -50°C to 100°C. For applications requiring operation below -50°C or above 100°C, the 748831-1 specifications must be maintained. For standard industrial and commercial temperature ranges, the 180-078-213R011 is suitable.