TE Connectivity 1-643819-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-643819-8 is an 18-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 827 units in stock.

Substitute parts are identified when equivalent electrical and mechanical specifications are maintained across critical parameters including connector type, position count, pitch, termination method, wire gauge, and mounting configuration. Alternative part numbers may offer different compliance certifications, contact finishes, or packaging formats while preserving functional compatibility.

Substiute Parts

1-643819-8

TE Connectivity AMP ConnectorsIn Stock: 9291-643819-8 Datasheet

Current PartRFQ

4-643819-8

TE Connectivity AMP ConnectorsIn Stock: 12224-643819-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 1-643819-8 are identified based on strict equivalence across the following critical parameters:

Electrical and Mechanical Equivalence Criteria:

• Connector type (Receptacle)
• Number of positions (18)
• Pitch specification (0.156" / 3.96mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge compatibility (22 AWG)
• Wire type support (Discrete or Ribbon Cable)
• Mounting configuration (Free Hanging, In-Line)
• Fastening mechanism (Locking Ramp)
• Design features (Closed End, Polarizing Key)
• Series designation (MTA-156)

Variations in contact finish material, RoHS compliance status, packaging format, and regulatory certifications do not affect functional substitutability when all electrical and mechanical parameters remain identical. The substitute part 4-643819-8 maintains complete equivalence across all critical parameters while differing in contact finish composition and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Part 1-643819-8 (Tin-Lead Contact Finish):

• Suitable for applications where RoHS non-compliance is acceptable or not required
• REACH Affected status requires compliance verification in regulated markets
• Tin-lead contact finish provides established performance characteristics in legacy systems

Part 4-643819-8 (Tin Contact Finish):

• Compliant with ROHS3 regulations, suitable for applications requiring RoHS certification
• REACH Unaffected status eliminates regulatory concerns in REACH-regulated jurisdictions
• Tin contact finish meets modern environmental compliance standards
• Higher inventory availability (1192 units) supports supply chain continuity
• Bulk packaging format accommodates high-volume production requirements

Both parts maintain identical electrical and mechanical specifications. Selection between these substitutes depends on regulatory compliance requirements, supply chain availability, and environmental certification mandates applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can part 4-643819-8 be used as a direct replacement for 1-643819-8?

A: Yes. Both parts are functionally equivalent across all electrical and mechanical parameters including connector type, position count, pitch, termination method, wire gauge, and mounting configuration. The primary differences are contact finish material (tin versus tin-lead) and regulatory compliance certifications.

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

A: The main part uses tin-lead contact finish while the substitute uses tin contact finish. Both maintain identical contact finish thickness (80.0µin / 2.03µm). The tin contact finish in part 4-643819-8 aligns with ROHS3 compliance requirements, whereas the tin-lead finish in part 1-643819-8 does not.

Q: Are there compatibility concerns when substituting between these parts?

A: No compatibility concerns exist. Both parts feature identical pitch (0.156" / 3.96mm), 18-position configuration, IDC termination, 22 AWG wire gauge support, and mechanical mounting specifications. They are mechanically and electrically interchangeable.

Q: What does REACH Affected versus REACH Unaffected mean for part selection?

A: REACH Affected status (part 1-643819-8) indicates the part contains substances subject to REACH regulation and requires compliance documentation in European Union applications. REACH Unaffected status (part 4-643819-8) indicates the part does not contain regulated substances, eliminating REACH compliance requirements.

Q: How do the packaging formats differ between these parts?

A: Part 1-643819-8 packaging is not specified in available documentation. Part 4-643819-8 is supplied in bulk packaging format, suitable for high-volume manufacturing environments.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements applicable to the end application. For applications requiring ROHS3 compliance and REACH exemption, part 4-643819-8 is the appropriate choice. For legacy systems or applications without regulatory compliance mandates, either part is functionally suitable.

Q: Is the MTA-156 series designation consistent across both parts?

A: Yes. Both parts belong to the TE Connectivity MTA-156 series, confirming series-level compatibility and interchangeability.