TE Connectivity 643828-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643828-3 is a 3-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 and is classified as RoHS non-compliant. The part is currently active in production with 706 units in stock.

Identification of equivalent and substitute parts is necessary to address supply chain requirements, compliance mandates, and inventory optimization while maintaining electrical and mechanical compatibility with the original design.

Substiute Parts

643828-3

TE Connectivity AMP ConnectorsIn Stock: 795643828-3 Datasheet

Current PartRFQ

3-643828-3

TE Connectivity AMP ConnectorsIn Stock: 23813-643828-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 643828-3 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Number of positions: 3
• Pitch: 0.100" (2.54mm)
• Contact type: Female socket
• Wire gauge: 26 AWG
• Cable termination: IDC
• Contact finish thickness: 80.0µin (2.03µm)

Mechanical Compatibility Parameters:

• Connector type: Rectangular receptacle
• Number of rows: 1
• Mounting type: Free Hanging (In-Line), Right Angle
• Fastening type: Locking ramp
• Features: Closed end
• Wire type: Discrete or ribbon cable

Environmental Parameters:

• Moisture sensitivity level: 1 (Unlimited)

The substitute part 3-643828-3 maintains identical electrical and mechanical specifications. The primary distinction is the contact finish material (tin versus tin-lead) and RoHS compliance status. Both parts share the same base product number (643828) and series designation (MTA-100), confirming functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

643828-3 (Tin-Lead Contact Finish): This part is suitable for applications where RoHS compliance is not required and tin-lead contact finish is specified in the design. The part maintains active production status and is available in standard packaging with 706 units in current inventory.

3-643828-3 (Tin Contact Finish): This part is the preferred selection for applications requiring RoHS compliance. It maintains identical electrical and mechanical specifications to the main part while substituting the contact finish from tin-lead to tin. The part is active in production with significantly higher inventory availability (2327 units) and is supplied in bulk packaging. The tin contact finish at 80.0µin thickness provides equivalent contact performance and durability.

Selection between these parts should be based on regulatory compliance requirements and design specifications. Both parts are manufactured by TE Connectivity and share the MTA-100 series designation, ensuring mechanical and electrical interchangeability within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Are the 643828-3 and 3-643828-3 connectors mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including pitch (0.100"), number of positions (3), mounting type (free hanging in-line and right angle), and fastening type (locking ramp). They are mechanically interchangeable in all applications.

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

A: The 643828-3 features a tin-lead contact finish, while the 3-643828-3 features a tin contact finish. Both finishes are applied at 80.0µin (2.03µm) thickness. The primary distinction is the lead content; tin-lead finishes are not RoHS compliant, while tin finishes are RoHS compliant. Both provide equivalent electrical conductivity and contact performance for IDC termination applications.

Q: Can I substitute the 3-643828-3 for the 643828-3 in an existing design?

A: Substitution is electrically and mechanically valid. The 3-643828-3 maintains all critical electrical parameters including wire gauge (26 AWG), contact type (female socket), and termination method (IDC). The primary consideration is regulatory compliance; if the original design specifies tin-lead finish or does not require RoHS compliance, design review is necessary before substitution.

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

A: The 643828-3 is supplied in standard packaging, while the 3-643828-3 is supplied in bulk packaging. Packaging type does not affect electrical or mechanical performance. Selection should be based on procurement volume requirements and inventory management practices.

Q: Are both parts suitable for ribbon cable and discrete wire termination?

A: Yes. Both the 643828-3 and 3-643828-3 support IDC termination for discrete or ribbon cable at 26 AWG wire gauge. The IDC termination method and contact specifications are identical across both parts.

Q: What is the Moisture Sensitivity Level for these connectors?

A: Both connectors are rated at Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or use.