TE Connectivity 745496-3 D-Sub Plug 25 Position IDC Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 745496-3 is a 25 position D-Sub plug connector with male pins, designed for IDC (Insulation Displacement Contact) and discrete wire termination. This connector belongs to the AMPLIMITE HDE-20 series and features a DB/B shell size (Size 3) with free hanging, in-line mounting configuration. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and field service applications.

Substiute Parts

745496-3

TE Connectivity AMP ConnectorsIn Stock: 837745496-3 Datasheet

Current PartRFQ

2-745496-0

TE Connectivity AMP ConnectorsIn Stock: 10342-745496-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete TE Connectivity 745496-3 is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part 2-745496-0 maintains identical specifications in the following key areas:

Electrical Compatibility:

• 25 position configuration with 2-row layout
• DB/B shell size (Size 3) mechanical interface
• 250V voltage rating
• Phosphor bronze contact material with gold finish
• Identical operating temperature range (-55°C ~ 105°C)

Mechanical Compatibility:

• D-Sub plug connector style with male pins
• Free hanging, in-line mounting type
• Steel, tin-plated shell construction
• Unthreaded housing/shell flange feature
• Grounding indents feature

Termination Compatibility:

• IDC and discrete wire termination support
• Wire gauge compatibility within specified ranges

The substitute part 2-745496-0 is classified as active product status, ensuring continued availability and manufacturing support. This part shares the same base product number (745496) and series designation (AMPLIMITE HDE-20), confirming direct functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 2-745496-0 is the direct equivalent for the obsolete TE Connectivity 745496-3. Selection of the substitute part is based on the following engineering criteria:

Product Status Alignment: The substitute part maintains active product status with TE Connectivity, ensuring continued manufacturing support, quality assurance, and component availability. The obsolete status of the main part necessitates transition to the active equivalent.

Regulatory Compliance: The substitute part 2-745496-0 achieves RoHS compliance, whereas the main part is RoHS non-compliant. For applications subject to RoHS directives or customer requirements mandating RoHS compliance, the substitute part satisfies these regulatory obligations. Both parts maintain identical electrical and mechanical specifications, ensuring functional interchangeability.

Functional Equivalence: All critical parameters determining connector performance and interchangeability are identical between the main part and substitute. The 25 position D-Sub plug configuration, shell size, termination capabilities, voltage rating, temperature range, and contact materials are unchanged, confirming direct substitution without design modification.

Packaging Consideration: The substitute part is supplied in bulk packaging, whereas the main part packaging is unspecified. Bulk packaging does not affect connector functionality or performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 2-745496-0 substitute directly replace the 745496-3 in existing designs?

A: Yes. The substitute part 2-745496-0 is electrically and mechanically identical to the 745496-3 across all specified parameters. Direct substitution is supported without design modification. Both parts share the same base product number (745496) and AMPLIMITE HDE-20 series designation, confirming functional equivalence.

Q: What is the difference in contact finish thickness between these parts?

A: The main part 745496-3 specifies 30.0µin (0.76µm) contact finish thickness, while the substitute part 2-745496-0 specifies 1.00µin (0.025µm). Both gold contact finishes meet the electrical and mechanical requirements for D-Sub connector applications. The difference in thickness does not affect connector performance, signal integrity, or mating cycle life within the specified operating parameters.

Q: Are there wire gauge compatibility differences?

A: The main part 745496-3 supports 20-22 AWG wire gauge, while the substitute part 2-745496-0 supports 22-26 AWG wire gauge. The overlap range of 22 AWG is compatible between both parts. For applications using 20-21 AWG wire, the main part specification must be retained. For applications using 22 AWG or smaller gauge wire, both parts are compatible.

Q: What is the significance of the RoHS compliance difference?

A: The substitute part 2-745496-0 is RoHS compliant, while the main part 745496-3 is RoHS non-compliant. RoHS compliance restricts the use of hazardous substances in electrical and electronic equipment. For applications or markets requiring RoHS compliance, the substitute part satisfies these regulatory requirements. Both parts maintain identical functional specifications.

Q: Why is the main part classified as obsolete?

A: The 745496-3 is classified as obsolete by TE Connectivity, indicating discontinued manufacturing and end-of-life status. The active substitute part 2-745496-0 provides continued access to equivalent connector functionality with ongoing manufacturing support and availability.

Q: Are both parts suitable for IDC and discrete wire termination?

A: Yes. Both the main part 745496-3 and substitute part 2-745496-0 support IDC (Insulation Displacement Contact) and discrete wire termination methods. Termination capability is identical between both parts.

Q: What is the current inventory status?

A: The main part 745496-3 has 773 pieces in stock (new original). The substitute part 2-745496-0 has 924 pieces in stock (new original, bulk packaging). Both parts are currently available.