TE Connectivity AMP Connectors 1734078-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1734078-4 is a 15 Position D-Sub High Density Receptacle connector with female sockets, right-angle solder termination, and through-hole mounting. This connector is part of the AMPLIMITE HD-22 series and features a mating side female screwlock (4-40) flange with board lock functionality. The product is currently obsolete, necessitating identification of active equivalent and substitute parts that maintain electrical and mechanical compatibility for new designs or replacement applications.

Substiute Parts

1734078-4

TE Connectivity AMP ConnectorsIn Stock: 9611734078-4 Datasheet

Current PartRFQ

193-015-213R531

NorComp Inc.In Stock: 1034193-015-213R531 Datasheet

SimilarRFQ

193-015-213R561

NorComp Inc.In Stock: 736193-015-213R561 Datasheet

SimilarRFQ

632-015-666-032

Mercury United Electronics, Inc.In Stock: 982632-015-666-032 Datasheet

SimilarRFQ

632-015-666-033

Mercury United Electronics, Inc.In Stock: 1055632-015-666-033 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1734078-4 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: D-Sub, High Density
• Connector Type: Receptacle, Female Sockets
• Number of Positions: 15
• Number of Rows: 3
• Shell Size, Connector Layout: 1 (DE, E) High Density
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Flange Feature: Mating Side, Female Screwlock (4-40)
• Shell Material, Finish: Steel, Nickel Plated
• Contact Finish: Gold
• Contact Type: Signal
• Features: Board Lock
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All four substitute parts listed meet these mandatory parameters. Variations in dielectric material, contact material, contact finish thickness, current rating, operating temperature range, and color do not preclude substitution when the core electrical and mechanical parameters align. The substitute parts are sourced from NorComp Inc. (193 series) and Mercury United Electronics, Inc. (632 series), all with active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes with Exact Flange Configuration:

The NorComp 193-015-213R561 and Mercury 632-015-666-033 are direct substitutes for the TE Connectivity 1734078-4, as both feature the mating side female screwlock (4-40) flange configuration that matches the original part. Both substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) ratings, ensuring compatibility with existing assembly and storage protocols. The Mercury 632-015-666-033 provides enhanced current rating (3A per contact) and shielding features, while the NorComp 193-015-213R561 offers extended operating temperature range (-55°C to 125°C).

Alternative Substitutes with Modified Flange Configuration:

The NorComp 193-015-213R531 and Mercury 632-015-666-032 feature housing/shell (4-40) flange configurations rather than mating side female screwlock. These parts maintain all other critical electrical and mechanical parameters but require evaluation of mounting interface compatibility in the target application. Both parts are ROHS3 compliant with MSL 1 (Unlimited) ratings.

All four substitute parts are currently active products with established supply chains, eliminating obsolescence risk associated with the original TE Connectivity 1734078-4.

Frequently Asked Questions (FAQ)

Q: Can the NorComp 193-015-213R561 directly replace the TE Connectivity 1734078-4 without design modification?

A: Yes. The NorComp 193-015-213R561 matches all mandatory parameters including connector style, position count, shell size, mounting type, termination method, and flange feature (mating side female screwlock 4-40). Both parts are ROHS3 compliant with MSL 1 (Unlimited) ratings.

Q: What is the difference between the Mercury 632-015-666-032 and 632-015-666-033?

A: Both Mercury parts are electrically and mechanically equivalent with identical connector specifications. The primary difference is the flange feature: the 632-015-666-032 uses housing/shell (4-40) mounting, while the 632-015-666-033 uses mating side female screwlock (4-40) mounting. The 632-015-666-033 matches the original TE Connectivity flange configuration.

Q: Are there compatibility concerns with the different dielectric materials used in the substitute parts?

A: No. The substitute parts use Polyamide (PA9T) or Polyester Thermoplastic dielectric materials, which are functionally equivalent to the original Polyamide (PA46) material for signal-level D-Sub high-density applications. All materials meet the required electrical insulation and mechanical performance standards for this connector category.

Q: Why do the Mercury parts feature shielding while the original part does not?

A: The shielding feature in the Mercury 632 series provides additional electromagnetic interference (EMI) protection. This is an enhancement that does not preclude substitution; applications not requiring shielding can use these parts without functional impact.

Q: What is the significance of the different contact finish thicknesses between parts?

A: The TE Connectivity 1734078-4 specifies flash gold plating, while the Mercury parts specify 30.0µin (0.76µm) gold plating. Both finishes provide equivalent contact durability and signal integrity for solder-terminated D-Sub connectors. The specified thickness difference does not affect substitution compatibility.

Q: Can the NorComp 193-015-213R531 be used if the application requires mating side female screwlock mounting?

A: No. The NorComp 193-015-213R531 features housing/shell (4-40) flange mounting, not mating side female screwlock. For applications requiring mating side female screwlock configuration, use the NorComp 193-015-213R561 or Mercury 632-015-666-033.

Q: Are all substitute parts available in the same packaging format?

A: The TE Connectivity 1734078-4 packaging is not specified in the provided data. All substitute parts are supplied in tray packaging. Packaging format should be confirmed with the component supplier for procurement and assembly process compatibility.

Q: What is the operating temperature range difference between substitute parts?

A: The NorComp 193 series operates from -55°C to 125°C, while the Mercury 632 series operates from -55°C to 85°C. The original TE Connectivity operating temperature is not specified. Application thermal requirements should determine which substitute part is appropriate.

Q: Do all substitute parts maintain ROHS3 compliance?

A: Yes. All four substitute parts are ROHS3 compliant with MSL 1 (Unlimited) ratings, matching the environmental and regulatory compliance profile of the original TE Connectivity 1734078-4.