TE Connectivity 640433-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640433-2 is a 2-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. The connector features tin-lead contact finish, closed-end design, and free-hanging in-line mounting configuration. This part is currently active in production with 986 pieces available in new original inventory stock.

Substitute parts are identified to address specific application requirements including RoHS compliance status, packaging preferences, and contact finish specifications while maintaining electrical and mechanical compatibility.

Substiute Parts

640433-2

TE Connectivity AMP ConnectorsIn Stock: 1057640433-2 Datasheet

Current PartRFQ

3-640433-2

TE Connectivity AMP ConnectorsIn Stock: 28263-640433-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the TE Connectivity 640433-2 and its identified equivalent is based on strict electrical and mechanical parameter matching within the MTA-156 rectangular connector series. The following parameters must remain identical for valid substitution:

Critical Matching Parameters:

• Connector type (Receptacle)
• Number of positions (2)
• Pitch specification (0.156" / 3.96mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge compatibility (22 AWG)
• Series designation (MTA-156)
• Row configuration (1 row)
• Mounting style (Free Hanging In-Line)
• End configuration (Closed End)

Variable Parameters Allowing Substitution:

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

The substitute part 3-640433-2 maintains complete compatibility across all critical electrical and mechanical parameters while offering alternative contact finish and regulatory compliance options.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Regulatory and Compliance Requirements:

The 640433-2 and 3-640433-2 are electrically and mechanically interchangeable within the MTA-156 series. Selection between these parts depends on specific application compliance mandates:

Choose 640433-2 when:

• RoHS non-compliant applications are acceptable
• Tin-lead contact finish is specified or required
• Standard packaging configuration is preferred
• Legacy system compatibility is required

Choose 3-640433-2 when:

• RoHS compliance is mandated by design specification or regulatory requirement
• Tin contact finish meets application requirements
• Bulk packaging is preferred for manufacturing efficiency
• Higher inventory availability is advantageous (2730 pieces in stock versus 986 pieces)

Both parts maintain identical electrical performance, mechanical fit, and environmental ratings (MSL 1). The contact finish difference (tin-lead versus tin) does not affect electrical compatibility or mechanical interface. The RoHS compliance status is the primary regulatory differentiator between these equivalent parts.

Frequently Asked Questions (FAQ)

Q: Are the 640433-2 and 3-640433-2 connectors mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including pitch (0.156"), position count (2), mounting style (free-hanging in-line), and closed-end design. They interface identically with mating connectors and cable assemblies within the MTA-156 series.

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

A: The 640433-2 features tin-lead contact finish while the 3-640433-2 features tin contact finish. Both maintain the same contact finish thickness (80.0µin / 2.03µm) and provide equivalent electrical conductivity and contact resistance performance. The primary difference is the lead content, which affects RoHS compliance status.

Q: Why does the 3-640433-2 show RoHS compliant status while the 640433-2 does not?

A: The tin contact finish in the 3-640433-2 eliminates lead content, achieving RoHS compliance. The tin-lead finish in the 640433-2 contains lead, resulting in non-compliant status. Both finishes are functionally equivalent for electrical performance.

Q: Can I use the 3-640433-2 as a direct replacement for the 640433-2 in existing designs?

A: Yes, the 3-640433-2 is a direct electrical and mechanical substitute for the 640433-2. All critical parameters including connector type, position count, pitch, termination method, and wire gauge are identical. The substitute part is suitable for new designs and retrofit applications.

Q: What is the significance of the packaging difference between these parts?

A: The 640433-2 uses standard packaging while the 3-640433-2 uses bulk packaging. This difference affects inventory management and order quantities but does not impact connector performance or compatibility. Bulk packaging typically offers cost advantages for high-volume manufacturing.

Q: Are both connectors suitable for IDC termination with 22 AWG cable?

A: Yes. Both the 640433-2 and 3-640433-2 are designed for IDC termination with 22 AWG discrete or ribbon cable. The IDC contact design and wire gauge specifications are identical across both parts.

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

A: Both connectors carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts do not require special moisture control during storage, handling, or assembly.

Q: How do the inventory levels compare between these two parts?

A: The 640433-2 has 986 pieces in new original stock, while the 3-640433-2 has 2730 pieces available. The higher inventory of the substitute part may provide supply chain advantages for high-volume applications.