TE Connectivity 640470-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640470-2 is a 2-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 26 AWG discrete or ribbon cable. This connector features tin-lead contact finish, a closed-end design, and a locking ramp fastening mechanism. The part is currently active in production with 633 pieces available in new original inventory.

Substitute parts are identified to address specific application requirements, including packaging format preferences, compliance certifications, and contact finish specifications while maintaining functional equivalence across core electrical and mechanical parameters.

Substiute Parts

640470-2

TE Connectivity AMP ConnectorsIn Stock: 743640470-2 Datasheet

Current PartRFQ

3-640470-2

TE Connectivity AMP ConnectorsIn Stock: 10603-640470-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 3-640470-2 is functionally equivalent to the main part 640470-2 based on the following critical parameters that determine substitution validity:

Electrical Compatibility Parameters:

• Identical number of positions (2)
• Identical pitch spacing (0.100" / 2.54mm)
• Identical contact type (Female Socket)
• Identical wire gauge specification (26 AWG)
• Identical cable termination method (IDC)

Mechanical Compatibility Parameters:

• Identical mounting type (Free Hanging In-Line, Right Angle)
• Identical fastening mechanism (Locking Ramp)
• Identical connector design (Closed End)
• Identical series designation (MTA-100)

Differentiating Parameters:

• Contact finish: Tin-Lead (640470-2) versus Tin (3-640470-2)
• Packaging format: Bulk versus Tape & Reel (TR)
• RoHS compliance: Non-compliant (640470-2) versus ROHS3 Compliant (3-640470-2)

The substitute relationship is valid because both parts maintain identical form, fit, and functional characteristics across all core electrical and mechanical specifications. Differences in contact finish composition and compliance certifications do not affect interchangeability in applications where these variations are acceptable.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Product Status and Compliance:

The 640470-2 and 3-640470-2 are both active production parts from TE Connectivity with identical electrical and mechanical specifications. Selection between these parts depends on specific application and regulatory requirements:

Choose 640470-2 when:

• RoHS compliance is not a requirement for the application
• Tin-lead contact finish is specified in design documentation
• Bulk packaging format is preferred for manufacturing processes
• Legacy system compatibility requires tin-lead contact composition

Choose 3-640470-2 when:

• ROHS3 compliance is mandated by application standards or customer requirements
• Tin contact finish meets application specifications
• Tape & Reel packaging is required for automated assembly processes
• Higher inventory availability (975 pieces) supports production scheduling

Both parts maintain identical form, fit, and functional characteristics. The primary differentiators are contact finish composition and regulatory compliance status. Selection should be based on documented application requirements and compliance certifications applicable to the end product.

Frequently Asked Questions (FAQ)

Q: Are the 640470-2 and 3-640470-2 connectors physically interchangeable?

A: Yes. Both connectors share identical mechanical dimensions, pitch spacing (0.100"), mounting configuration, and fastening mechanisms. They occupy the same physical footprint and mount identically in applications designed for the MTA-100 series 2-position receptacle.

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

A: The 640470-2 features tin-lead contact finish, while the 3-640470-2 features tin contact finish. Both maintain the same contact finish thickness (80.0µin / 2.03µm). The contact finish material affects compliance certifications and environmental compatibility but does not alter electrical performance or mechanical fit.

Q: Why does the 3-640470-2 have ROHS3 compliance while the 640470-2 does not?

A: The tin-lead contact finish in the 640470-2 contains lead, which is restricted under RoHS regulations. The 3-640470-2 uses tin contact finish without lead, making it compliant with ROHS3 standards. Both parts are functionally equivalent; compliance status depends on contact finish composition.

Q: Can I use the 3-640470-2 as a direct replacement for the 640470-2 in existing designs?

A: Direct replacement is possible if the application does not specifically require tin-lead contact finish and if ROHS3 compliance is acceptable or required. Verify that design documentation does not mandate tin-lead composition. Both parts are electrically and mechanically identical.

Q: What is the significance of the packaging difference (bulk versus Tape & Reel)?

A: Bulk packaging (640470-2) is suitable for manual assembly and small-volume production. Tape & Reel packaging (3-640470-2) is designed for automated pick-and-place assembly equipment. Selection depends on manufacturing process requirements and assembly automation capabilities.

Q: Are both parts suitable for IDC termination with 26 AWG cable?

A: Yes. Both the 640470-2 and 3-640470-2 are specified for IDC termination with 26 AWG discrete or ribbon cable. The IDC termination method and wire gauge specifications are identical across both parts.

Q: What is the moisture sensitivity level for these connectors?

A: Both connectors have a Moisture Sensitivity Level (MSL) of 1, which indicates unlimited shelf life without special moisture control requirements. No baking or desiccant storage is necessary for either part.