TE Connectivity 640429-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640429-2 is a 2-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as obsolete product status.

Due to its obsolete classification, locating equivalent or substitute components is necessary for ongoing system maintenance, repair, and new design implementations. The substitute part identified maintains functional compatibility while offering improved product status and regulatory compliance.

Substiute Parts

640429-2

TE Connectivity AMP ConnectorsIn Stock: 1021640429-2 Datasheet

Current PartRFQ

3-640429-2

TE Connectivity AMP ConnectorsIn Stock: 30333-640429-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the TE Connectivity 640429-2 is determined by the following critical parameters:

Mechanical Compatibility Parameters:

• Connector type (Receptacle)
• Number of positions (2)
• Pitch spacing (0.156" / 3.96mm)
• Number of rows (1)
• Mounting type (Free Hanging In-Line)
• Fastening type (Locking Ramp)
• Contact type (Female Socket)

Electrical Compatibility Parameters:

• Cable termination method (IDC)
• Wire gauge (24 AWG)
• Wire type (Discrete or Ribbon Cable)
• Contact finish thickness (80.0µin / 2.03µm)

Physical Compatibility Parameters:

• Closed end feature
• Color (White)
• Series designation (MTA-156)

The substitute part 3-640429-2 maintains identical values across all mechanical, electrical, and physical parameters, establishing direct functional equivalence. The primary differences are contact finish material (tin versus tin-lead) and product status classification.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Active Projects:

The substitute part 3-640429-2 is the appropriate selection. This part maintains active product status with full manufacturing support and availability. The part is RoHS compliant, meeting current regulatory requirements for electronic components in most jurisdictions. The tin contact finish provides equivalent electrical performance to the tin-lead variant while eliminating lead-based materials from the assembly.

For Legacy System Maintenance:

The original 640429-2 part remains functionally equivalent for systems already deployed with tin-lead contact specifications. However, the obsolete status indicates limited future availability. Transition planning to the 3-640429-2 substitute is recommended for long-term supply chain continuity.

Regulatory Compliance Consideration:

The 3-640429-2 substitute carries RoHS compliance certification, whereas the original 640429-2 is RoHS non-compliant. This distinction is material for applications subject to RoHS directives or customer specifications requiring lead-free components.

Frequently Asked Questions (FAQ)

Q: Are the 640429-2 and 3-640429-2 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including pitch (0.156"), number of positions (2), mounting type (Free Hanging In-Line), and fastening mechanism (Locking Ramp). They are directly interchangeable in mechanical terms.

Q: What is the functional difference between tin-lead and tin contact finishes in this connector?

A: Both contact finishes provide equivalent electrical conductivity and contact resistance at the specified contact finish thickness of 80.0µin (2.03µm). The primary distinction is material composition: tin-lead contains lead, while tin does not. This affects regulatory compliance and environmental considerations rather than electrical performance.

Q: Can I use the 3-640429-2 as a direct replacement in existing assemblies designed for the 640429-2?

A: Yes. The 3-640429-2 maintains all electrical and mechanical parameters required for direct substitution. The RoHS compliance of the substitute part may be advantageous for systems subject to regulatory requirements.

Q: Why is the original 640429-2 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. The substitute part 3-640429-2 represents the current active equivalent in the product line.

Q: Are there packaging differences between these parts?

A: The original 640429-2 packaging is not specified in the available data. The 3-640429-2 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What is the Moisture Sensitivity Level (MSL) for these connectors?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Do both parts support discrete and ribbon cable termination?

A: Yes. Both the 640429-2 and 3-640429-2 support IDC termination for discrete or ribbon cable at 24 AWG wire gauge.