TE Connectivity 643819-9 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643819-9 is a 9-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 a tin-lead contact finish, closed-end design with polarizing key, and free-hanging in-line mounting configuration. The part is currently active in production with 955 units in stock.

Identification of equivalent and substitute parts is necessary to support procurement flexibility, manage supply chain continuity, and accommodate specific compliance or packaging requirements in applications where the primary part number may be unavailable or where alternative contact finishes or RoHS compliance status are required.

Substiute Parts

643819-9

TE Connectivity AMP ConnectorsIn Stock: 1007643819-9 Datasheet

Current PartRFQ

3-643819-9

TE Connectivity AMP ConnectorsIn Stock: 9373-643819-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part 643819-9 and the equivalent part 3-643819-9 is based on strict electrical and mechanical compatibility. Both parts share identical core parameters that define functional interchangeability:

Critical Matching Parameters:

• Connector type (Receptacle)
• Number of positions (9)
• Pitch specification (0.156" / 3.96mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge (22 AWG)
• Wire type compatibility (Discrete or Ribbon Cable)
• Mounting configuration (Free Hanging In-Line)
• Fastening mechanism (Locking Ramp)
• Design features (Closed End, Polarizing Key)
• Series designation (MTA-156)

The primary difference between these parts is the contact finish specification: 643819-9 features tin-lead plating, while 3-643819-9 features tin plating. Both maintain the same contact finish thickness of 80.0µin (2.03µm). Additionally, 3-643819-9 carries RoHS compliance status, whereas 643819-9 is RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Compliance and Product Status:

Both 643819-9 and 3-643819-9 are active production parts from TE Connectivity AMP Connectors and are electrically and mechanically interchangeable for all standard applications requiring a 9-position MTA-156 series receptacle connector with IDC termination for 22 AWG cable.

RoHS Compliance Consideration: Applications subject to RoHS (Restriction of Hazardous Substances) directives or customer specifications requiring RoHS compliance must use part number 3-643819-9, which carries RoHS Compliant status. The original part 643819-9 is RoHS non-compliant due to its tin-lead contact finish.

Contact Finish Specification: The tin-lead contact finish of 643819-9 may be specified for applications requiring specific solderability or contact resistance characteristics. The tin finish of 3-643819-9 provides an alternative where lead-free requirements apply.

Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints for storage or handling.

Export Classification: Both parts share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications, supporting equivalent regulatory treatment in international trade contexts.

Frequently Asked Questions (FAQ)

Q: Are 643819-9 and 3-643819-9 directly interchangeable in all applications?

A: Yes, these parts are electrically and mechanically interchangeable. Both are 9-position MTA-156 series receptacle connectors with identical pitch, contact configuration, IDC termination method, and wire gauge specifications. The primary difference is the contact finish (tin-lead versus tin) and RoHS compliance status.

Q: What is the difference between the tin-lead finish of 643819-9 and the tin finish of 3-643819-9?

A: Both finishes maintain the same thickness of 80.0µin (2.03µm). The tin-lead finish in 643819-9 contains lead, while 3-643819-9 uses a lead-free tin finish. Selection depends on application requirements, solderability specifications, and regulatory compliance mandates.

Q: Which part should I specify for RoHS-compliant applications?

A: Part number 3-643819-9 is RoHS Compliant and must be used for applications subject to RoHS directives or customer RoHS compliance requirements. Part 643819-9 is RoHS non-compliant.

Q: Do these connectors support both discrete and ribbon cable termination?

A: Yes, both 643819-9 and 3-643819-9 support IDC termination for discrete or ribbon cable at 22 AWG wire gauge.

Q: What is the packaging difference between these parts?

A: Part 643819-9 packaging is not specified in the product data. Part 3-643819-9 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specification.

Q: Are there any moisture sensitivity or storage constraints for these connectors?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations for storage, handling, or use.

Q: Can these connectors be used in applications requiring specific export classifications?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications, supporting equivalent regulatory treatment for export purposes.