TE Connectivity 640604-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640604-2 is a 2-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as a feed-through receptacle for free-hanging in-line applications. The part is currently active in production with 739 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector interface, allowing for direct functional replacement in applications where the primary part becomes unavailable or when alternative compliance certifications are required.

Substiute Parts

640604-2

TE Connectivity AMP ConnectorsIn Stock: 819640604-2 Datasheet

Current PartRFQ

3-640604-2

TE Connectivity AMP ConnectorsIn Stock: 8643-640604-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 640604-2 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type (Receptacle)
• Number of positions (2)
• Pitch (0.156" / 3.96mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge (18 AWG)
• Number of rows (1)
• Mounting type (Free Hanging In-Line)
• Contact finish thickness (80.0µin / 2.03µm)

Allowable Variations:

• Contact finish material (Tin-Lead to Tin)
• RoHS compliance status
• Packaging configuration
• Inventory availability

The substitute part 3-640604-2 maintains all mandatory parameters while differing only in contact finish composition (Tin versus Tin-Lead) and regulatory compliance certifications. This variation does not affect electrical or mechanical compatibility with mating connectors or cable termination performance.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Regulatory and Compliance Requirements:

The 640604-2 (Tin-Lead contact finish) is suitable for applications where RoHS non-compliance is acceptable or where legacy system compatibility requires tin-lead plating specifications. This part maintains active production status and is available in current inventory.

The 3-640604-2 (Tin contact finish) is the appropriate selection for applications requiring ROHS3 compliance certification. This substitute maintains identical electrical and mechanical performance while meeting current regulatory standards for lead-free manufacturing. The tin contact finish at 80.0µin thickness provides equivalent conductivity and durability to the tin-lead variant.

Both parts are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly. Both carry identical ECCN and HTSUS classifications for export and tariff purposes.

Selection between these parts should be based solely on the regulatory compliance requirements of the end application and the geographic market destination.

Frequently Asked Questions (FAQ)

Q: Can the 3-640604-2 directly replace the 640604-2 in existing assemblies?

A: Yes. The 3-640604-2 maintains identical electrical and mechanical parameters across all critical specifications including connector type, position count, pitch, contact type, termination method, and wire gauge. The contact finish difference (Tin versus Tin-Lead) does not affect mating compatibility or electrical performance.

Q: What is the functional difference between Tin-Lead and Tin contact finishes?

A: Both finishes provide equivalent electrical conductivity and contact resistance at the specified thickness of 80.0µin (2.03µm). The primary difference is regulatory: Tin-Lead finishes are subject to RoHS restrictions in certain markets, while Tin finishes comply with ROHS3 standards. Mechanically and electrically, both perform identically in IDC termination applications.

Q: Are there any packaging differences between these parts?

A: The 640604-2 is supplied in standard packaging, while the 3-640604-2 is supplied in Bulk packaging. This difference affects only the quantity per container and does not impact the connector specifications or performance.

Q: Which part should be selected for new designs?

A: Selection depends on the target market and regulatory requirements. For applications requiring ROHS3 compliance, the 3-640604-2 is the appropriate choice. For legacy systems or applications where RoHS compliance is not mandated, either part is functionally equivalent.

Q: Do both parts require special handling during storage?

A: No. Both parts are classified as Moisture Sensitivity Level 1 (Unlimited), meaning they do not require controlled humidity storage or baking procedures prior to assembly.

Q: Are the mating plugs identical for both receptacle variants?

A: Yes. Both the 640604-2 and 3-640604-2 receptacles are part of the MTA-156 series and mate with identical MTA-156 series plugs. The contact finish variation does not affect mating geometry or contact engagement.

Q: What is the current inventory status for each part?

A: The 640604-2 has 739 units in stock. The 3-640604-2 has 781 units in stock. Both are classified as New Original parts in active production.