TE Connectivity 749763-1 D-Sub Receptacle Housing Equivalent & Substitute Parts

Part Overview

The TE Connectivity 749763-1 is a D-Sub receptacle housing designed for 25-position female contact applications. This connector belongs to the AMPLIMITE HDP-20 series and features a shielded steel housing with tin plating. The part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct compatibility in existing designs.

Substiute Parts

749763-1

TE Connectivity AMP ConnectorsIn Stock: 815749763-1 Datasheet

Current PartRFQ

1658662-1

TE Connectivity AMP ConnectorsIn Stock: 11571658662-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 749763-1 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: D-Sub
• Connector Type: Receptacle for Female Contacts
• Number of Positions: 25
• Number of Rows: 2
• Shell Size, Connector Layout: 3 (DB, B)
• Contact Type: Signal
• Mounting Type: Free Hanging (In-Line)
• Flange Feature: Cable Side (4-40)
• Features: Shielded
• Shell Material, Finish: Steel, Tin Plated
• Dielectric Material: Polyamide (PA), Nylon, Glass Filled
• Color: Black
• Series: AMPLIMITE HDP-20

Parts meeting all these criteria are classified as direct equivalents and may be substituted without design modification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity 1658662-1

The TE Connectivity 1658662-1 is a direct functional equivalent to the 749763-1 across all critical electrical and mechanical parameters. Both parts share identical connector specifications within the AMPLIMITE HDP-20 series, including 25-position receptacle configuration, D-Sub shell size 3 (DB, B), shielded steel housing with tin plating, and free-hanging cable-side mounting.

The 1658662-1 offers the following advantages:

• Product Status: Active production status ensures ongoing availability and supply chain continuity, addressing the obsolescence of the 749763-1.
• RoHS Compliance: The 1658662-1 is RoHS compliant, whereas the 749763-1 is non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements.
• Shell Finish Specification: The 1658662-1 provides explicit shell finish thickness documentation (200µin / 5.08µm), enabling precise corrosion resistance and durability assessment.
• Inventory Availability: The 1658662-1 maintains higher stock levels (1084 pcs) compared to the 749763-1 (725 pcs).

Both parts are subject to REACH regulations and classified under ECCN EAR99 and HTSUS 8538.90.8180. Neither part includes contacts; contacts must be sourced separately and must be compatible with 25-position D-Sub receptacle housings.

Frequently Asked Questions (FAQ)

Q: Can the 1658662-1 be used as a direct replacement for the 749763-1?

A: Yes. The 1658662-1 meets all electrical and mechanical specifications of the 749763-1. Both are 25-position D-Sub receptacle housings within the AMPLIMITE HDP-20 series with identical shell size, mounting configuration, and shielding characteristics. No design modification is required.

Q: What is the difference between the 749763-1 and 1658662-1?

A: The primary differences are product status and regulatory compliance. The 749763-1 is obsolete and RoHS non-compliant, while the 1658662-1 is in active production and RoHS compliant. The 1658662-1 also provides documented shell finish thickness (200µin / 5.08µm). All functional and mechanical parameters are identical.

Q: Are contacts included with these housings?

A: No. Both the 749763-1 and 1658662-1 are housings only. Contacts must be procured separately. Contacts must be compatible with 25-position D-Sub receptacle housings for female signal contacts.

Q: What is the shell size designation "3 (DB, B)"?

A: Shell size 3 refers to the standard D-Sub connector shell size. The designation "DB, B" indicates the specific connector layout and pin configuration for 25-position D-Sub connectors.

Q: Does the RoHS compliance difference affect mechanical compatibility?

A: No. RoHS compliance relates to material composition and hazardous substance restrictions, not mechanical fit or electrical function. Both parts are mechanically and electrically interchangeable.

Q: What does "Free Hanging (In-Line)" mounting mean?

A: This mounting type indicates the connector is designed for cable-side installation without a backshell or panel-mount bracket. The connector mounts directly to the cable assembly.

Q: Are both parts shielded?

A: Yes. Both the 749763-1 and 1658662-1 feature shielded housings, providing electromagnetic interference (EMI) protection for signal integrity.

Q: What is the flange feature "Cable Side (4-40)"?

A: This indicates the connector includes a cable-side flange with 4-40 threaded mounting holes, enabling secure mechanical attachment to cable assemblies or strain relief components.