TE Connectivity AMP Connectors 745996-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 745996-4 is a 37-position D-Sub receptacle connector with female sockets, right-angle through-hole mounting, and solder termination. This connector is part of the AMPLIMITE HD-20 series and is classified as active product status. The connector features a steel tin-plated shell, gold-plated contacts, and ground strap functionality suitable for signal applications requiring 6A current capacity at 125V.

Equivalent and substitute parts are necessary to address inventory availability, manufacturing lead times, compliance requirements, and design flexibility across different supplier networks while maintaining electrical and mechanical compatibility.

Substiute Parts

745996-4

TE Connectivity AMP ConnectorsIn Stock: 1114745996-4 Datasheet

Current PartRFQ

5745996-4

TE Connectivity AMP ConnectorsIn Stock: 11325745996-4 Datasheet

DirectRFQ

183-037-213R171

NorComp Inc.In Stock: 2203183-037-213R171 Datasheet

SimilarRFQ

183-037-213R541

NorComp Inc.In Stock: 1037183-037-213R541 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of D-Sub receptacle connectors is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Connector style (D-Sub)
• Connector type (Receptacle, Female Sockets)
• Number of positions (37)
• Number of rows (2)
• Shell size and connector layout (4 / DC, C)
• Mounting type (Through Hole, Right Angle)
• Termination method (Solder)
• Operating temperature range (-55°C ~ 105°C)
• Backset spacing (0.590" / 14.99mm)
• Material flammability rating (UL94 V-0)

Allowable Variation Parameters:

• Manufacturer (TE Connectivity AMP Connectors, NorComp Inc.)
• Shell material finish (Steel Tin Plated, Steel Nickel Plated)
• Contact finish thickness (30.0µin, Flash)
• Contact material (Phosphor Bronze, Brass)
• Flange feature configuration (Housing/Shell 4-40, Mating Side Female Screwlock 4-40)
• Current rating (6A, 5A)
• Voltage rating (125V, unspecified)
• Packaging format (Bulk, Tray)
• RoHS compliance status
• Dielectric material composition

The substitute parts listed maintain full mechanical and electrical compatibility within the specified parameter tolerances for D-Sub 37-position receptacle applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (TE Connectivity 5745996-4): The part number 5745996-4 is a direct equivalent to 745996-4 with identical electrical and mechanical specifications. The primary distinction is RoHS compliance status: 5745996-4 is RoHS Compliant while 745996-4 is RoHS Non-Compliant. Selection of 5745996-4 is appropriate for applications requiring RoHS compliance or when inventory of the original part is unavailable.

Alternative Substitutes (NorComp 183-037-213R171 and 183-037-213R541): Both NorComp alternatives maintain full mechanical compatibility and core electrical functionality. These parts differ in the following aspects:

• Current rating is reduced to 5A (versus 6A in TE Connectivity parts)
• Voltage rating is not specified (versus 125V in TE Connectivity parts)
• Shell material finish is Nickel Plated (versus Tin Plated)
• Contact material is Brass (versus Phosphor Bronze)
• Dielectric material is Polyamide (PA9T), Nylon 9T (versus Thermoplastic)
• Mounting type includes Panel Mount option in addition to Through Hole, Right Angle
• Both parts are ROHS3 Compliant and REACH Unaffected

The 183-037-213R171 features Housing/Shell flange configuration identical to the main part, while 183-037-213R541 features Mating Side Female Screwlock configuration and Board Lock functionality.

Selection of NorComp alternatives is appropriate when the reduced current rating (5A) and unspecified voltage rating are acceptable for the application, and when NorComp supplier availability or compliance requirements take precedence.

Frequently Asked Questions (FAQ)

Q: Can 5745996-4 be used as a direct replacement for 745996-4?

A: Yes. The 5745996-4 is electrically and mechanically equivalent to 745996-4. Both parts share identical specifications for connector style, position count, mounting type, termination, current rating (6A), voltage rating (125V), operating temperature range, and flange configuration. The primary difference is RoHS compliance status.

Q: What is the significance of the current rating difference between TE Connectivity (6A) and NorComp (5A) parts?

A: The current rating specifies the maximum continuous current the connector contacts can safely carry. Applications requiring current levels between 5A and 6A must use TE Connectivity parts (745996-4 or 5745996-4). Applications with maximum current requirements of 5A or less can use either TE Connectivity or NorComp alternatives.

Q: Are the NorComp 183-037-213R171 and 183-037-213R541 interchangeable with each other?

A: Both NorComp parts are mechanically compatible and share identical electrical specifications. The primary difference is the flange feature: 183-037-213R171 has Housing/Shell (4-40) configuration, while 183-037-213R541 has Mating Side Female Screwlock (4-40) configuration and includes Board Lock functionality. Selection depends on the specific mounting and locking requirements of the application.

Q: What does the voltage rating difference (125V specified versus not specified) mean for substitution?

A: TE Connectivity parts are rated for 125V operation. NorComp parts do not specify a voltage rating in the provided data. For applications operating at voltages approaching or exceeding 100V, TE Connectivity parts (745996-4 or 5745996-4) are the appropriate selection. For lower voltage applications, NorComp alternatives are acceptable.

Q: How does packaging format (Bulk versus Tray) affect part selection?

A: Packaging format affects handling, storage, and procurement logistics but does not impact electrical or mechanical compatibility. TE Connectivity parts are supplied in Bulk packaging, while NorComp parts are supplied in Tray packaging. Selection should be based on inventory management and procurement requirements.

Q: What is the difference between Tin Plated and Nickel Plated shell finishes?

A: Both finishes provide corrosion protection for the steel shell. Tin Plating (TE Connectivity parts) and Nickel Plating (NorComp parts) are both acceptable for standard industrial applications. Selection may depend on specific environmental exposure requirements or existing connector inventory standards within the application.

Q: Are all substitute parts suitable for the same operating temperature range?

A: Yes. All listed parts (745996-4, 5745996-4, 183-037-213R171, and 183-037-213R541) operate across the identical temperature range of -55°C to 105°C, ensuring thermal compatibility across all substitution options.

Q: What does RoHS compliance status indicate for part selection?

A: RoHS compliance indicates whether the part meets Restriction of Hazardous Substances regulations. The 745996-4 is RoHS Non-Compliant, while 5745996-4, 183-037-213R171, and 183-037-213R541 are RoHS Compliant or ROHS3 Compliant. Applications subject to RoHS regulations must use compliant alternatives.