TE Connectivity 748569-1 D-Sub High Density Receptacle Housing Equivalent & Substitute Parts

Part Overview

The TE Connectivity 748569-1 is a D-Sub high density receptacle housing designed for 78-position female contact applications. This connector is part of the AMPLIMITE HDP-22 series and features a 4-row configuration with shell size 5 (DD, D) high density layout. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing procurement and system integration requirements.

Substiute Parts

748569-1

TE Connectivity AMP ConnectorsIn Stock: 782748569-1 Datasheet

Current PartRFQ

1658685-1

TE Connectivity AMP ConnectorsIn Stock: 11671658685-1 Datasheet

DirectRFQ

180-078-273L000

NorComp Inc.In Stock: 1044180-078-273L000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 748569-1 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: D-Sub, High Density
• Connector Type: Receptacle for Female Contacts
• Number of Positions: 78
• Number of Rows: 4
• Shell Size, Connector Layout: 5 (DD, D) High Density
• Contact Type: Signal
• Mounting Type: Free Hanging (In-Line)
• Flange Feature: Housing/Shell (Unthreaded)

Acceptable Variation Parameters:

• Shell Material Finish: Steel with Tin or Nickel plating
• Dielectric Material: Polyamide (PA), Nylon, Glass Filled or unspecified
• RoHS Compliance: Substitutes may be RoHS3 compliant despite main part non-compliance
• Packaging: Bulk or Tray formats acceptable

The identified substitute parts maintain full mechanical and electrical compatibility through identical position count, row configuration, shell size, and mounting characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity 1658685-1

The 1658685-1 is the direct equivalent substitute for the obsolete 748569-1. Both components share identical manufacturer lineage within TE Connectivity AMP Connectors and are part of the same AMPLIMITE HDP-22 series. The 1658685-1 maintains all critical mechanical and electrical parameters while offering active product status and ROHS3 compliance. Shell material finish specifications are identical (Steel, Tin Plated), and dielectric material composition matches exactly. This substitute provides the highest level of form, fit, and function compatibility.

Secondary Substitute: NorComp Inc. 180-078-273L000

The 180-078-273L000 provides functional equivalence through identical connector geometry, position count, row configuration, and mounting characteristics. This cross-manufacturer substitute differs in shell finish material (Nickel Plated versus Tin Plated) and operates across an extended temperature range of -50°C to 100°C. The NorComp component carries ROHS3 compliance and REACH Unaffected status. Selection of this substitute is appropriate when cross-manufacturer sourcing is required or when extended temperature operation is specified.

Both substitute parts are active products with confirmed inventory availability, eliminating procurement risk associated with the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can the 1658685-1 directly replace the 748569-1 in existing applications?

A: Yes. The 1658685-1 maintains identical connector style, position count, row configuration, shell size, mounting type, and flange feature. Both components are part of the AMPLIMITE HDP-22 series and share the same dielectric material composition. The primary difference is product status (Active versus Obsolete) and RoHS compliance level.

Q: What is the significance of the shell finish difference between the TE Connectivity and NorComp substitutes?

A: The TE Connectivity 1658685-1 uses Tin plating while the NorComp 180-078-273L000 uses Nickel plating. Both finishes are applied to steel shells and provide corrosion protection. The choice between them depends on application-specific environmental exposure and contact resistance requirements. Both finishes are compatible with standard D-Sub high density contact systems.

Q: Are there packaging considerations when selecting between substitute parts?

A: Yes. The 1658685-1 is supplied in Bulk packaging while the 180-078-273L000 is supplied in Tray packaging. Bulk packaging is suitable for high-volume assembly operations, while Tray packaging provides organized component presentation for lower-volume or manual assembly processes. Packaging selection should align with production workflow and inventory management requirements.

Q: Does the RoHS compliance difference between the main part and substitutes affect compatibility?

A: No. The obsolete 748569-1 is RoHS non-compliant, while both active substitutes are ROHS3 compliant. This difference reflects regulatory evolution and manufacturing updates rather than functional incompatibility. Systems designed for the original part operate identically with RoHS-compliant substitutes.

Q: What is the operating temperature range for these connectors?

A: The TE Connectivity 748569-1 and 1658685-1 do not specify operating temperature limits in available documentation. The NorComp 180-078-273L000 specifies -50°C to 100°C operation. For applications requiring confirmed temperature specifications, the NorComp substitute provides explicit thermal operating parameters.

Q: Are contacts included with these housing components?

A: No. All three components (748569-1, 1658685-1, and 180-078-273L000) are housing-only receptacles. Female contacts must be sourced separately and inserted into the housing during assembly.

Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?

A: The TE Connectivity components carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling. The NorComp component lists MSL as Not Applicable, reflecting different classification standards. Both designations indicate the components are not subject to moisture-related storage limitations.