TE Connectivity 745187-3 D-Sub 25 Position Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity 745187-3 is a 25 position D-Sub receptacle connector with female sockets, designed for through-hole solder termination applications. This AMPLIMITE HDP-20 series connector features a vertical orientation with an unthreaded housing shell and is classified as an active product. Substitute parts are identified when equivalent electrical and mechanical parameters are required for applications where the original part number is unavailable, when alternative compliance certifications are needed, or when different mounting configurations are necessary while maintaining core connector functionality.

Substiute Parts

745187-3

TE Connectivity AMP ConnectorsIn Stock: 1153745187-3 Datasheet

Current PartRFQ

5745187-3

TE Connectivity AMP ConnectorsIn Stock: 11695745187-3 Datasheet

DirectRFQ

172-025-282-031

NorComp Inc.In Stock: 874172-025-282-031 Datasheet

SimilarRFQ

172-025-283L001

NorComp Inc.In Stock: 1400172-025-283L001 Datasheet

SimilarRFQ

172-025-283L011

NorComp Inc.In Stock: 759172-025-283L011 Datasheet

SimilarRFQ

172-025-283L021

NorComp Inc.In Stock: 949172-025-283L021 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 745187-3 are grouped based on the following critical parameters that determine functional equivalence:

Primary Equivalence Criteria:

• Connector style (D-Sub)
• Connector type (Receptacle, Female Sockets)
• Number of positions (25)
• Number of rows (2)
• Shell size and layout (3, DB, B)
• Termination method (Solder)
• Contact finish (Gold)
• Material flammability rating (UL94 V-0)
• Color (Black)

Acceptable Variations in Substitutes:

• Mounting type (Through Hole vs. Panel Mount, Through Hole)
• Shell material finish (Tin Plated vs. Nickel Plated)
• Contact material (Phosphor Bronze vs. Brass)
• Dielectric material (Thermoplastic vs. Polyamide or Polybutylene Terephthalate)
• Current rating (6A vs. 5A)
• Operating temperature range (within specified limits)
• RoHS compliance status
• Flange feature configuration (Unthreaded vs. Board Side)
• Manufacturer (TE Connectivity vs. NorComp)

Substitutes maintain the core D-Sub 25 position receptacle architecture and solder termination interface, ensuring mechanical and electrical compatibility in applications where the original part is unavailable.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Manufacturer):

The TE Connectivity 5745187-3 is a direct substitute for the 745187-3. Both parts share identical electrical and mechanical specifications within the AMPLIMITE HDP-20 series. The primary distinction is that 5745187-3 carries ROHS3 compliance and REACH Unaffected status, whereas the original 745187-3 is RoHS non-compliant. Selection of 5745187-3 is appropriate for applications requiring regulatory compliance with RoHS3 directives.

Cross-Manufacturer Alternatives (NorComp Inc.):

The NorComp 172 series parts (172-025-283L001, 172-025-283L011, 172-025-283L021, and 172-025-282-031) provide functional equivalence as 25 position D-Sub receptacles with solder termination. These parts are suitable for applications where:

• Panel mount or through-hole mounting configurations are required
• Operating temperature range of -50°C to 125°C is acceptable
• Current rating of 5A meets application requirements
• ROHS3 compliance and REACH Unaffected status are mandatory
• Brass contact material and PBT dielectric material are acceptable alternatives to phosphor bronze and thermoplastic

The NorComp parts feature nickel-plated steel shells compared to the tin-plated shells of the TE Connectivity parts, and employ machined contacts rather than standard contacts. These differences do not affect functional compatibility in standard D-Sub 25 position receptacle applications.

Compliance Considerations:

Applications subject to RoHS3 or REACH regulations should utilize 5745187-3 or NorComp alternatives. The original 745187-3 is not compliant with these directives and should not be selected for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 5745187-3 be used as a direct replacement for 745187-3?

A: Yes. The 5745187-3 is electrically and mechanically equivalent to the 745187-3. Both are 25 position D-Sub receptacles with identical pin configurations, solder termination, and through-hole mounting. The primary difference is regulatory compliance status. The 5745187-3 is ROHS3 compliant and REACH Unaffected, while the 745187-3 is RoHS non-compliant.

Q: What are the key differences between TE Connectivity and NorComp D-Sub 25 position receptacles?

A: Both manufacturers produce functionally equivalent 25 position D-Sub receptacles with solder termination and UL94 V-0 flammability ratings. Differences include: shell material finish (TE uses tin plating; NorComp uses nickel plating), contact material (TE uses phosphor bronze; NorComp uses brass), dielectric material (TE uses thermoplastic; NorComp uses PBT), current rating (TE rates 6A; NorComp rates 5A), and mounting options (NorComp offers panel mount configurations). All parts maintain the same shell size (3, DB, B) and 25 position layout.

Q: Are NorComp 172-025-283L001, 172-025-283L011, and 172-025-283L021 interchangeable?

A: These three NorComp parts are functionally equivalent 25 position D-Sub receptacles. The primary difference is the flange feature: 172-025-283L001 has an unthreaded housing shell, while 172-025-283L011 and 172-025-283L021 feature board-side 4-40 mounting. Selection depends on the specific mounting configuration required by the application. All three parts are ROHS3 compliant and REACH Unaffected.

Q: What is the difference between through-hole and panel mount configurations?

A: Through-hole mounting (745187-3, 5745187-3) is designed for insertion into printed circuit board holes with solder connections on the reverse side. Panel mount configurations (NorComp 172 series) include flanges for attachment to equipment enclosures or panels. The choice depends on the physical installation requirements of the application.

Q: Can I use a NorComp part rated at 5A in an application designed for the 6A TE Connectivity connector?

A: Application suitability depends on actual current requirements. If the application draws 5A or less, the NorComp part is acceptable. If the application requires current capacity above 5A, the TE Connectivity part rated at 6A must be used. Verify actual circuit current requirements before substitution.

Q: What is the significance of the contact material difference (phosphor bronze vs. brass)?

A: Both phosphor bronze and brass are acceptable contact materials for D-Sub connectors and provide reliable electrical performance. The choice between them does not affect functional compatibility. Both materials are used in industry-standard D-Sub connectors and maintain consistent contact resistance and durability characteristics.

Q: Are the NorComp parts suitable for applications requiring -55°C operation?

A: NorComp 172 series parts are rated for -50°C to 125°C operating temperature. Applications requiring operation at -55°C must use TE Connectivity parts (745187-3 or 5745187-3), which are rated for -55°C to 105°C. Verify the minimum operating temperature requirement before selecting a substitute part.

Q: What packaging options are available for these D-Sub 25 position receptacles?

A: The TE Connectivity 745187-3 is supplied in tube packaging. The TE Connectivity 5745187-3 is also supplied in tube packaging. NorComp 172 series parts are supplied in tray packaging. Packaging selection may affect handling, storage, and ordering quantities. Verify packaging requirements with procurement specifications.

Q: Do all substitute parts carry the same certifications?

A: No. The original 745187-3 is RoHS non-compliant with vendor-undefined REACH status. The 5745187-3 is ROHS3 compliant and REACH Unaffected. All NorComp 172 series parts are ROHS3 compliant and REACH Unaffected. Applications subject to regulatory compliance requirements must use 5745187-3 or NorComp alternatives.