TE Connectivity 1-1740198-2 D-Sub Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-1740198-2 is a 25 Position D-Sub Receptacle connector featuring female sockets, surface mount right-angle configuration, and solder termination. This connector is part of the AMPLIMITE HD-20 series and is classified as obsolete. The part is RoHS compliant with a tin-plated steel shell and gold-plated contacts suitable for signal applications in industrial and commercial electronics.

Due to its obsolete product status, identifying equivalent and substitute parts is necessary to ensure continued availability for new designs, repairs, and production continuity. Active alternatives within the same series provide enhanced features and current availability while maintaining core electrical and mechanical compatibility.

Substiute Parts

1-1740198-2

TE Connectivity AMP ConnectorsIn Stock: 9971-1740198-2 Datasheet

Current PartRFQ

1-1740198-5

TE Connectivity AMP ConnectorsIn Stock: 7791-1740198-5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1-1740198-2 is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

• Connector Style: D-Sub
• Connector Type: Receptacle, Female Sockets
• Number of Positions: 25
• Number of Rows: 2
• Shell Size, Connector Layout: 3 (DB, B)
• Mounting Type: Surface Mount, Right Angle
• Termination: Solder
• Contact Type: Signal
• Flange Feature: Board Side (4-40)
• Contact Finish: Gold
• Contact Finish Thickness: 31.5µin (0.80µm)
• Dielectric Material: Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled
• Operating Temperature Range: -55°C ~ 105°C
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part 1-1740198-5 maintains all critical parameters while offering an active product status, enhanced shell material finish (nickel plated), and additional mounting features. The substitution is valid for applications requiring equivalent electrical and mechanical performance within the specified environmental and compliance constraints.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-1740198-5 serves as a direct substitute for the obsolete 1-1740198-2 based on the following engineering criteria:

Product Status Consideration: The 1-1740198-2 is classified as obsolete, creating supply chain risk for ongoing production and field service applications. The 1-1740198-5 maintains active product status within the same AMPLIMITE HD-20 series, ensuring long-term availability and manufacturing support.

Compliance and Certification: Both parts maintain identical RoHS compliance status and Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), ensuring compatibility with current regulatory requirements and manufacturing processes. Both parts carry the same ECCN (EAR99) and HTSUS (8536.69.4040) classifications.

Electrical and Mechanical Equivalence: The substitute part preserves all critical electrical and mechanical parameters including connector geometry, pin configuration, contact materials, and operating temperature range. The nickel-plated shell finish of the 1-1740198-5 provides enhanced corrosion resistance compared to the tin-plated finish of the main part, while maintaining equivalent signal integrity and mechanical performance.

Enhanced Features: The 1-1740198-5 includes mounting brackets in addition to the board guide feature, providing improved mechanical stability during assembly and field deployment. The specified current rating of 4.5A for the substitute part provides additional design documentation clarity.

Frequently Asked Questions (FAQ)

Q: Can the 1-1740198-5 be used as a direct replacement for the 1-1740198-2 in existing designs?

A: Yes. The 1-1740198-5 maintains all critical electrical and mechanical parameters required for direct substitution, including connector style, pin count, shell size, mounting configuration, contact materials, and operating temperature range. The parts are mechanically and electrically interchangeable.

Q: What is the primary difference between these two parts?

A: The main differences are product status and shell material finish. The 1-1740198-2 is obsolete with a tin-plated steel shell, while the 1-1740198-5 is active with a nickel-plated steel shell. The 1-1740198-5 also includes mounting brackets as an additional feature and specifies a 4.5A current rating.

Q: Are there any compatibility concerns with PCB layouts or mounting holes?

A: No. Both parts feature identical board-side flange specifications (4-40) and surface mount right-angle mounting configurations. PCB layouts designed for the 1-1740198-2 accommodate the 1-1740198-5 without modification.

Q: Does the nickel-plated finish of the 1-1740198-5 affect signal integrity compared to the tin-plated finish of the 1-1740198-2?

A: No. Both parts maintain identical gold-plated contact finishes with 31.5µin (0.80µm) thickness, which is the critical parameter for signal transmission. The shell material finish does not affect electrical performance for signal-type connectors.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1-1740198-2 and 1-1740198-5 are RoHS compliant and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited), ensuring compatibility with current manufacturing and environmental standards.

Q: What is the significance of the current rating specification for the 1-1740198-5?

A: The 1-1740198-5 specifies a 4.5A current rating, providing explicit design documentation for power delivery applications. This specification clarifies the connector's capability for applications requiring current-carrying capacity within this rating.