TE Connectivity 748566-1 D-Sub High Density Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 748566-1 is a D-Sub high density receptacle housing for female contacts with 26 positions across 3 rows in shell size 2 (DA, A) configuration. This connector is part of the AMPLIMITE HDP-22 series and features a steel tin-plated shell with polyamide nylon glass-filled dielectric material. The part is currently classified as obsolete, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility while offering active product status and current compliance certifications.

Substiute Parts

748566-1

TE Connectivity AMP ConnectorsIn Stock: 1036748566-1 Datasheet

Current PartRFQ

1658682-1

TE Connectivity AMP ConnectorsIn Stock: 11431658682-1 Datasheet

DirectRFQ

180-026-273L000

NorComp Inc.In Stock: 2557180-026-273L000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 748566-1 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector style: D-Sub, High Density
• Connector type: Receptacle for Female Contacts
• Number of positions: 26
• Number of rows: 3
• Shell size and layout: 2 (DA, A) High Density
• Contact type: Signal
• Mounting type: Free Hanging (In-Line)
• Flange feature: Housing/Shell (Unthreaded)

Acceptable Variations:

• Shell finish material: Steel with tin plating or nickel plating
• Dielectric material: Polyamide nylon glass-filled or equivalent
• Packaging format: Bulk or tray
• Product status: Active products are preferred over obsolete classifications

Both identified substitute parts meet all mandatory matching parameters and maintain mechanical and electrical compatibility with the original 748566-1 housing.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity 1658682-1

The 1658682-1 is the direct equivalent substitute for the obsolete 748566-1. Both components share identical electrical and mechanical specifications within the AMPLIMITE HDP-22 series. The 1658682-1 offers the following advantages: active product status, ROHS3 compliance, REACH unaffected status, and specified shell finish thickness of 200µin (5.08µm). This part maintains the same tin-plated steel shell and polyamide nylon glass-filled dielectric material as the original. Selection of 1658682-1 eliminates obsolescence risk and ensures compliance with current regulatory requirements.

Secondary Substitute: NorComp 180-026-273L000

The 180-026-273L000 provides mechanical and electrical compatibility through identical connector configuration, position count, row arrangement, and shell size. This part is manufactured by NorComp Inc. within the 180 series and features a nickel-plated steel shell instead of tin plating. The 180-026-273L000 is active, ROHS3 compliant, and REACH unaffected. Operating temperature range is specified as -50°C to 100°C. This substitute is suitable for applications where cross-manufacturer sourcing is acceptable and nickel plating is compatible with system requirements.

Compliance Considerations:

The original 748566-1 is RoHS non-compliant and REACH affected. Both substitute parts (1658682-1 and 180-026-273L000) are ROHS3 compliant and REACH unaffected, making them suitable for applications subject to current environmental and hazardous substance regulations.

Frequently Asked Questions (FAQ)

Q: Can the 1658682-1 directly replace the 748566-1 in existing designs?

A: Yes. The 1658682-1 is mechanically and electrically equivalent to the 748566-1. Both are D-Sub high density receptacles with 26 positions in 3 rows, shell size 2 (DA, A), free hanging mounting, and unthreaded housing/shell flange. The 1658682-1 maintains the same tin-plated steel shell and polyamide nylon glass-filled dielectric material.

Q: What is the difference between the TE Connectivity 1658682-1 and the NorComp 180-026-273L000?

A: Both parts are mechanically and electrically compatible D-Sub high density receptacles with identical position count, row configuration, and shell size. The primary difference is shell finish material: the 1658682-1 features tin plating while the 180-026-273L000 features nickel plating. The 180-026-273L000 also specifies an operating temperature range of -50°C to 100°C. Selection between these parts depends on finish material compatibility and temperature requirements for the specific application.

Q: Why is the 748566-1 listed as obsolete?

A: The 748566-1 is classified as obsolete by TE Connectivity. The 1658682-1 serves as the active replacement within the same AMPLIMITE HDP-22 series, offering identical specifications with current product status and regulatory compliance.

Q: Are there packaging differences between the substitute parts?

A: Yes. The 1658682-1 is supplied in bulk packaging, while the 180-026-273L000 is supplied in tray packaging. Packaging format may affect handling, storage, and procurement processes but does not impact electrical or mechanical compatibility.

Q: Do these connectors include contacts?

A: No. The 748566-1, 1658682-1, and 180-026-273L000 are housing components only. Contacts are not included and must be sourced separately.

Q: What compliance certifications apply to the substitute parts?

A: Both 1658682-1 and 180-026-273L000 are ROHS3 compliant and REACH unaffected. Both are classified under ECCN EAR99 and HTSUS 8538.90.8180. The original 748566-1 is RoHS non-compliant and REACH affected, making the substitutes suitable for applications requiring current environmental compliance.

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

A: The 748566-1 and 1658682-1 both have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The 180-026-273L000 has MSL not applicable.