TE Connectivity 640427-6 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640427-6 is a 6-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 20 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as obsolete product status.

Due to its obsolete classification, identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for ongoing production, repair, and maintenance applications. The substitute part identified maintains functional compatibility while offering improved product status and regulatory compliance.

Substiute Parts

640427-6

TE Connectivity AMP ConnectorsIn Stock: 898640427-6 Datasheet

Current PartRFQ

3-640427-6

TE Connectivity AMP ConnectorsIn Stock: 76913-640427-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 640427-6 is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part 3-640427-6 maintains identical specifications in the following key areas:

Electrical Compatibility:

• 6-position configuration with 0.156" (3.96mm) pitch
• Female socket contact type
• 20 AWG wire gauge capacity
• IDC termination method for discrete or ribbon cable

Mechanical Compatibility:

• Single-row receptacle connector
• Free hanging in-line mounting
• Locking ramp fastening mechanism
• Closed-end housing design
• Yellow color designation

Contact Finish Specifications:

• Contact finish thickness: 80.0µin (2.03µm)
• Moisture sensitivity level: 1 (Unlimited)

The primary distinction between the main part and substitute is the contact finish material (tin-lead versus tin) and product status classification (obsolete versus active).

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-640427-6 serves as the direct substitute for the obsolete 640427-6 connector. Selection of the substitute part is supported by the following engineering considerations:

Product Status: The substitute part maintains active product status, ensuring continued availability and manufacturer support. The main part is classified as obsolete, limiting future procurement options.

Regulatory Compliance: The substitute part is ROHS3 compliant, meeting current environmental and hazardous substance restrictions. The main part is RoHS non-compliant, which may present compliance challenges in new designs or applications subject to regulatory requirements.

Functional Equivalence: Both parts are manufactured by TE Connectivity within the MTA-156 series and maintain identical electrical and mechanical specifications across all critical parameters including position count, pitch, contact configuration, termination method, and wire gauge capacity.

Contact Finish Consideration: The substitute part utilizes tin contact finish in place of tin-lead. Both finishes maintain the specified 80.0µin (2.03µm) thickness and are compatible with IDC termination methods for 20 AWG cable applications.

Frequently Asked Questions (FAQ)

Q: Can the 3-640427-6 substitute directly replace the 640427-6 in existing applications?

A: Yes. Both connectors maintain identical electrical and mechanical specifications including 6-position configuration, 0.156" pitch, female socket contacts, IDC termination capability, and 20 AWG wire gauge compatibility. The connectors are mechanically and electrically interchangeable.

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

A: Both contact finishes are applied at 80.0µin (2.03µm) thickness and function identically in IDC termination applications. Tin finish in the substitute part eliminates lead content, supporting RoHS3 compliance requirements.

Q: Why is the main part classified as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand, production decisions, and product lifecycle management. The substitute part 3-640427-6 remains in active production status.

Q: Are there packaging differences between these parts?

A: The main part 640427-6 is supplied in unspecified packaging, while the substitute part 3-640427-6 is supplied in bulk packaging. Both are suitable for component selection and installation.

Q: Does the MSL rating differ between these connectors?

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

Q: What is the inventory status for these parts?

A: The main part 640427-6 has 794 pieces in stock. The substitute part 3-640427-6 has 7624 pieces in stock, providing significantly greater availability.