TE Connectivity 745073-2 D-Sub Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 745073-2 is a 25-position D-Sub plug connector with vertical solder termination, part of the AMPLIMITE HD-20 series. This connector features male pins, through-hole mounting, and a mating-side female screwlock mechanism. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

745073-2

TE Connectivity AMP ConnectorsIn Stock: 1167745073-2 Datasheet

Current PartRFQ

5745073-2

TE Connectivity AMP ConnectorsIn Stock: 11325745073-2 Datasheet

DirectRFQ

745073-1

TE Connectivity AMP ConnectorsIn Stock: 755745073-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 745073-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (D-Sub plug with male pins)
• Number of positions (25)
• Number of rows (2)
• Shell size and layout (3 / DB, B)
• Current rating (6A)
• Voltage rating (125V)
• Contact material (brass)
• Contact finish (gold)
• Dielectric material (polyester)
• Flammability rating (UL94 V-0)

Mechanical Compatibility Parameters:

• Mounting type (through hole)
• Termination method (solder)
• Flange feature (mating side, female screwlock 4-40)
• Operating temperature range (-55°C to 105°C)

Identified Substitutes:

The 745073-2 has two direct equivalents within the AMPLIMITE HD-20 series that satisfy all electrical and mechanical parameters:

1. 5745073-2 (Direct manufacturer equivalent, active status)
2. 745073-1 (Similar manufacturer equivalent, active status)

Both substitutes maintain identical connector specifications, pin configuration, and performance ratings. Differences exist only in packaging format, contact finish thickness specification, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 5745073-2

The 5745073-2 is the recommended direct equivalent for the obsolete 745073-2. This part maintains complete electrical and mechanical compatibility across all critical parameters. The 5745073-2 carries active product status and achieves ROHS3 compliance, making it suitable for new designs and applications subject to regulatory requirements. The contact finish thickness differs (flash versus 30.0µin), but both specifications satisfy the gold plating requirement for signal integrity and corrosion resistance.

Secondary Substitute: 745073-1

The 745073-1 provides an alternative equivalent with identical connector specifications and active product status. This part is functionally interchangeable with the 745073-2 and maintains all electrical and mechanical parameters. The 745073-1 does not achieve ROHS3 compliance but carries REACH Affected status. Selection between 5745073-2 and 745073-1 depends on regulatory compliance requirements for the target application.

Compliance Considerations:

Applications requiring ROHS3 compliance should specify 5745073-2. Applications without RoHS requirements may utilize either 745073-1 or 5745073-2. Both substitutes are manufactured by TE Connectivity AMP Connectors within the AMPLIMITE HD-20 series, ensuring design continuity and supply chain consistency.

Frequently Asked Questions (FAQ)

Q: Can the 5745073-2 directly replace the obsolete 745073-2 in existing designs?

A: Yes. The 5745073-2 maintains identical electrical and mechanical specifications across all critical parameters: 25-position D-Sub plug configuration, male pins, through-hole solder termination, 6A current rating, 125V voltage rating, and mating-side female screwlock mechanism. Pin-to-pin compatibility is complete.

Q: What is the difference between contact finish thickness specifications (30.0µin versus flash)?

A: Both specifications denote gold plating applied to brass contacts. The 30.0µin (0.76µm) specification on the 745073-2 defines a measured thickness, while the flash specification on 5745073-2 and 745073-1 indicates a thin, continuous gold coating. Both finishes satisfy signal integrity and corrosion resistance requirements for D-Sub connectors.

Q: Does packaging format affect electrical or mechanical compatibility?

A: No. Packaging format (tube versus unspecified) does not affect connector performance, pin configuration, or mating characteristics. Packaging differences relate only to handling, storage, and logistics considerations.

Q: Which substitute should be selected for new product designs?

A: The 5745073-2 is recommended for new designs due to active product status and ROHS3 compliance. This ensures long-term supply availability and regulatory alignment with current environmental standards.

Q: Are the 745073-1 and 5745073-2 interchangeable in the same application?

A: Yes. Both parts are electrically and mechanically equivalent to the 745073-2. Selection between them depends on regulatory compliance requirements. The 5745073-2 provides ROHS3 compliance, while the 745073-1 does not.

Q: What is the operating temperature range for all three parts?

A: All three parts operate across the identical temperature range of -55°C to 105°C, ensuring thermal compatibility across applications.

Q: Can these connectors be used in high-current applications?

A: The 6A current rating applies to all three parts. Applications requiring current capacity exceeding 6A require alternative connector designs with higher current specifications.