TE Connectivity 640433-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640433-3 is a 3-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as a closed-end receptacle with free-hanging in-line mounting. The part is currently active in production with 1050 pieces available in new original inventory.

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

640433-3

TE Connectivity AMP ConnectorsIn Stock: 1136640433-3 Datasheet

Current PartRFQ

3-640433-3

TE Connectivity AMP ConnectorsIn Stock: 27833-640433-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part 640433-3 and the equivalent part 3-640433-3 is based on strict electrical and mechanical parameter matching within the MTA-156 rectangular connector series. Both parts maintain identical specifications across the following critical parameters:

Substitution-Determining Parameters:

• Connector type (Receptacle)
• Number of positions (3)
• Pitch (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge (22 AWG)
• Series designation (MTA-156)
• Mounting configuration (Free Hanging In-Line)
• Contact finish thickness (80.0µin / 2.03µm)
• Number of rows (1)
• Features (Closed End)

The primary difference between these parts is the contact finish specification (tin-lead versus tin) and RoHS compliance status. The substitute part 3-640433-3 features tin contact finish and is RoHS3 compliant, whereas the main part 640433-3 uses tin-lead finish and is RoHS non-compliant. Both parts are mechanically and electrically interchangeable within applications where the contact finish material and regulatory compliance requirements align.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Product Status and Compliance:

The choice between 640433-3 and 3-640433-3 is determined by regulatory and material requirements rather than functional performance differences.

Select 640433-3 when:

• Legacy system designs or existing inventory compatibility requires tin-lead contact finish
• RoHS compliance is not a project requirement
• Historical performance data with tin-lead contacts is specified

Select 3-640433-3 when:

• RoHS3 compliance is mandated by design specifications or customer requirements
• New designs require lead-free contact materials
• Bulk packaging is preferred for manufacturing operations
• Environmental or regulatory standards prohibit lead-containing components

Both parts are active products with current manufacturing status. The substitute part 3-640433-3 offers superior regulatory alignment for modern applications while maintaining complete electrical and mechanical compatibility with the main part across all critical connector parameters.

Frequently Asked Questions (FAQ)

Q: Are 640433-3 and 3-640433-3 mechanically interchangeable?

A: Yes. Both parts share identical mechanical specifications including connector type, number of positions, pitch (0.156"), mounting configuration, and closed-end design. They mate with the same plug connectors and occupy identical physical space in assemblies.

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

A: The contact finish material differs between the parts. The 640433-3 uses tin-lead finish, while 3-640433-3 uses tin finish. Both finishes provide equivalent electrical conductivity and contact resistance at 80.0µin (2.03µm) thickness. The primary distinction is material composition and regulatory compliance status.

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

A: Direct replacement is possible from an electrical and mechanical standpoint. However, design documentation, material specifications, and regulatory compliance requirements must be reviewed. If the original design specifies tin-lead contact finish or RoHS non-compliant components, substitution requires design change authorization.

Q: What does RoHS3 compliance mean for the 3-640433-3?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, specifically the lead-free material standard. The 640433-3 is RoHS non-compliant, meaning it contains lead in the tin-lead contact finish. This distinction is critical for applications subject to EU regulations or customer-mandated environmental standards.

Q: Are there packaging differences between these parts?

A: Yes. The 640433-3 packaging is listed as unspecified in the provided data, while 3-640433-3 is supplied in bulk packaging. Bulk packaging typically accommodates higher-volume manufacturing operations and may affect ordering quantities and handling procedures.

Q: Do both parts support the same wire gauges and termination methods?

A: Yes. Both parts are rated for 22 AWG wire and use IDC (Insulation Displacement Contact) termination. They accept discrete or ribbon cable configurations identically.

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

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

Q: Can these connectors be used with ribbon cable?

A: Yes. Both 640433-3 and 3-640433-3 are specified for discrete or ribbon cable wire types. The IDC termination method accommodates standard ribbon cable configurations.