TE Connectivity 1759941-1 PCI Express Mini Card Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1759941-1 is a 52-position female connector designed for PCI Express Mini Card applications. This connector features a 0.031" (0.80mm) pitch, dual read-out configuration, and gold-plated copper alloy contacts with through-hole, right-angle mounting. The part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

1759941-1

TE Connectivity AMP ConnectorsIn Stock: 9221759941-1 Datasheet

Current PartRFQ

2041119-1

TE Connectivity AMP ConnectorsIn Stock: 16742041119-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1759941-1 connector is determined by strict adherence to the following critical parameters:

Core Compatibility Parameters:

• Card Type: PCI Express Mini Card (required match)
• Gender: Female (required match)
• Number of Positions: 52 (required match)
• Number of Rows: 2 (required match)
• Pitch: 0.031" (0.80mm) (required match)
• Read Out: Dual (required match)
• Termination: Solder (required match)
• Contact Finish: Gold (required match)

Allowable Variation Parameters:

• Mounting Type: Through Hole or Surface Mount configurations are acceptable for substitution
• Contact Material: Copper Alloy or Phosphor Bronze are acceptable alternatives
• Insulation Material: Thermoplastic or Liquid Crystal Polymer (LCP) Glass Filled are acceptable alternatives
• Packaging: Original packaging or Cut Tape (CT) are acceptable
• Product Status: Active status is preferred for ongoing availability

The substitute part 2041119-1 meets all core compatibility requirements while introducing allowable variations in mounting type (Surface Mount vs. Through Hole), contact material (Phosphor Bronze vs. Copper Alloy), and insulation material (LCP Glass Filled vs. Thermoplastic).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Through-Hole Applications): The 1759941-1 remains the specified component for applications requiring through-hole, right-angle mounting. Given its obsolete status, inventory availability is limited to existing stock.

For New Designs or Surface Mount Applications: The 2041119-1 is the active equivalent for PCI Express Mini Card connector requirements. This substitute provides:

• Active product status with ongoing manufacturer support
• ROHS3 compliance certification
• Surface mount configuration suitable for modern PCB assembly processes
• Phosphor bronze contact material with equivalent electrical performance to copper alloy
• Liquid crystal polymer insulation with enhanced thermal and mechanical properties compared to thermoplastic

Mounting Type Consideration: Selection between 1759941-1 (through-hole) and 2041119-1 (surface mount) is determined by PCB design requirements and assembly methodology. Both connectors maintain electrical and mechanical compatibility with PCI Express Mini Card specifications.

Compliance and Availability: The 2041119-1 substitute is recommended for applications where ROHS3 compliance is required or where long-term component availability is a design consideration.

Frequently Asked Questions (FAQ)

Q: Can the 2041119-1 be used as a direct replacement for the 1759941-1 in existing assemblies?

A: Electrical and mechanical compatibility is maintained between these connectors for PCI Express Mini Card applications. However, the primary difference is mounting type: 1759941-1 uses through-hole mounting while 2041119-1 uses surface mount. Direct PCB-level substitution requires compatible mounting pad layouts. Both connectors maintain the same 52-position, dual read-out configuration with 0.031" pitch.

Q: What are the key differences between these two connectors?

A: The connectors share identical electrical specifications for PCI Express Mini Card applications. Differences include: mounting type (through-hole vs. surface mount), contact material (copper alloy vs. phosphor bronze), insulation material (thermoplastic vs. LCP glass filled), and product status (obsolete vs. active). All differences fall within acceptable substitution parameters.

Q: Is the 2041119-1 suitable for applications originally designed for the 1759941-1?

A: Functional compatibility is maintained for PCI Express Mini Card electrical requirements. Substitution feasibility depends on PCB design: through-hole applications require pad layout modifications to accommodate surface mount termination. The 2041119-1 is suitable for new designs or redesigned assemblies.

Q: What is the significance of the product status difference?

A: The 1759941-1 is classified as obsolete, indicating discontinued manufacturing and limited inventory availability. The 2041119-1 is active, indicating ongoing production and availability. For applications requiring long-term component supply, the active substitute is preferred.

Q: Are there compliance differences between these connectors?

A: The 2041119-1 carries ROHS3 compliance certification. Both connectors share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications. Both maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: How do the contact materials affect performance?

A: Both copper alloy and phosphor bronze contacts with gold flash finish provide equivalent electrical performance for PCI Express Mini Card applications. Phosphor bronze offers enhanced spring characteristics and durability in high-cycle insertion applications.

Q: What packaging options are available?

A: The 1759941-1 is supplied in standard packaging. The 2041119-1 is available in Cut Tape (CT) packaging, suitable for automated assembly processes.