TE Connectivity 748639-1 D-Sub High Density Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity 748639-1 is a D-Sub High Density receptacle housing designed for 15-position female contact applications. This connector belongs to the AMPLIMITE HDP-22 series and features a cable-side flange with 4-40 mounting, shielded backshell, and steel tin-plated construction. The 748639-1 is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure ongoing component availability for production and field service applications.

Substiute Parts

748639-1

TE Connectivity AMP ConnectorsIn Stock: 1174748639-1 Datasheet

Current PartRFQ

1658688-1

TE Connectivity AMP ConnectorsIn Stock: 18391658688-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 748639-1 with active equivalent components 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: 15
• Number of Rows: 3
• Shell Size, Connector Layout: 1 (DE, E) High Density
• Contact Type: Signal
• Mounting Type: Free Hanging (In-Line)
• Flange Feature: Cable Side (4-40)
• Features: Backshell, Shielded
• Shell Material, Finish: Steel, Tin Plated
• Dielectric Material: Polyamide (PA), Nylon, Glass Filled
• Color: Black
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part 1658688-1 satisfies all mandatory matching parameters and is classified as active product status, making it a direct functional equivalent for the obsolete 748639-1.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1658688-1 is the direct functional equivalent for the obsolete 748639-1. Both components share identical electrical and mechanical specifications within the AMPLIMITE HDP-22 series, including connector style, position count, mounting configuration, and material composition.

The 1658688-1 offers the following advantages:

Product Status: The 1658688-1 is classified as active product, ensuring continued availability and manufacturer support, whereas the 748639-1 is obsolete.

Regulatory Compliance: The 1658688-1 is RoHS Compliant, providing improved environmental and regulatory alignment compared to the non-compliant 748639-1.

Documentation: The 1658688-1 includes specified shell finish thickness of 200µin (5.08µm), providing explicit manufacturing tolerance documentation.

Inventory Availability: The 1658688-1 maintains higher inventory levels (1765 Pcs) compared to the 748639-1 (1088 Pcs), supporting production continuity.

Selection of the 1658688-1 for new designs and field replacements eliminates obsolescence risk while maintaining full mechanical and electrical compatibility with existing connector systems.

Frequently Asked Questions (FAQ)

Q: Can the 1658688-1 directly replace the 748639-1 in existing assemblies?

A: Yes. The 1658688-1 is a direct functional equivalent with identical connector style, position count, mounting type, flange configuration, and material specifications. No design modifications are required for mechanical or electrical integration.

Q: What is the difference in RoHS compliance between these parts?

A: The 748639-1 is RoHS non-compliant, while the 1658688-1 is RoHS Compliant. For applications subject to RoHS regulations or customer requirements, the 1658688-1 is the appropriate selection.

Q: Are the shell finish specifications equivalent?

A: The 1658688-1 specifies shell finish thickness at 200µin (5.08µm). The 748639-1 does not include documented finish thickness. Both use steel with tin plating as the shell material and finish. The documented specification in the 1658688-1 provides explicit manufacturing tolerance reference.

Q: What packaging options are available?

A: The 1658688-1 is supplied in Bulk packaging. The 748639-1 packaging specification is not documented in the provided data.

Q: Are contacts included with these housings?

A: No. Both the 748639-1 and 1658688-1 are housings only. Contacts are not included and must be sourced separately.

Q: What is the moisture sensitivity level for these connectors?

A: Both components are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are these components suitable for high-density D-Sub applications?

A: Yes. Both the 748639-1 and 1658688-1 are High Density D-Sub receptacles with 15 positions arranged in 3 rows, conforming to shell size 1 (DE, E) High Density specifications.