TE Connectivity 643814-9 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643814-9 is a 9-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG discrete or ribbon cable. This connector features tin-lead contact finish, closed-end design, and free-hanging or right-angle mounting configuration with locking ramp fastening. The part is Active in product status with RoHS compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across connector position count, pitch, termination method, wire gauge, and mounting characteristics, while allowing variation in contact finish composition and packaging configuration.

Substiute Parts

643814-9

TE Connectivity AMP ConnectorsIn Stock: 1076643814-9 Datasheet

Current PartRFQ

3-643814-9

TE Connectivity AMP ConnectorsIn Stock: 15743-643814-9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 643814-9 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must remain identical for a part to qualify as a direct substitute:

• Number of Positions: 9 positions (determines mating interface and circuit capacity)
• Pitch: 0.100" (2.54mm) (determines physical spacing and compatibility with mating connectors)
• Connector Type: Receptacle (determines mating orientation)
• Contact Type: Female Socket (determines signal interface)
• Cable Termination Method: IDC (determines wire attachment mechanism)
• Wire Gauge: 24 AWG (determines current-carrying capacity and termination compatibility)
• Number of Rows: 1 row (determines connector profile)
• Mounting Type: Free Hanging (In-Line), Right Angle (determines installation configuration)
• Fastening Type: Locking Ramp (determines mechanical retention)

Non-critical parameters that may vary between substitutes include contact finish composition (tin-lead versus tin), packaging configuration (bulk versus standard), and inventory availability. These variations do not affect functional compatibility or electrical performance in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-643814-9 is a direct functional equivalent to the 643814-9 for all standard applications requiring a 9-position MTA-100 series IDC receptacle connector with 24 AWG wire termination.

Compliance Considerations: Both parts maintain Active product status and meet RoHS requirements. The main part carries RoHS Compliant certification, while the substitute carries ROHS3 Compliant certification, indicating enhanced compliance with current regulatory standards. Both parts are classified under identical ECCN (EAR99) and HTSUS (8536.69.8000) codes, confirming equivalent export and tariff treatment.

Contact Finish Variation: The primary difference between these parts is the contact finish composition. The main part (643814-9) features tin-lead finish, while the substitute (3-643814-9) features tin finish. Both maintain identical contact finish thickness of 80.0µin (2.03µm) and identical contact finish thickness specifications. This variation does not affect electrical performance, mating force, or signal integrity in standard applications.

Packaging and Availability: The substitute part is available in bulk packaging with higher inventory availability (1504 pieces versus 972 pieces). This packaging difference does not affect connector performance or compatibility.

Regulatory and Environmental: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating equivalent environmental performance. REACH status differs between parts (REACH Affected for main part, Vendor Undefined for substitute), which may require clarification for specific regulatory jurisdictions but does not affect functional substitution.

Frequently Asked Questions (FAQ)

Q: Can the 3-643814-9 be used as a direct replacement for the 643814-9 in existing designs?

A: Yes. The 3-643814-9 maintains identical electrical and mechanical specifications across all critical parameters including connector position count, pitch, termination method, wire gauge, mounting configuration, and fastening type. The parts are functionally interchangeable in standard applications.

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

A: Both finishes provide equivalent electrical conductivity and contact resistance. Tin-lead finish (643814-9) and tin finish (3-643814-9) differ in composition but maintain identical contact finish thickness (80.0µin / 2.03µm). The choice between them is typically driven by regulatory requirements or specific application constraints rather than electrical performance.

Q: Are there any compatibility issues when mixing these parts in the same assembly?

A: No. Both parts are from the same MTA-100 series with identical pitch (0.100" / 2.54mm), mounting type, and fastening mechanism. They mate with identical connector plugs and accept identical wire gauges (24 AWG) through the same IDC termination process.

Q: Does the bulk packaging of the 3-643814-9 affect its performance compared to standard packaging?

A: No. Packaging configuration does not affect connector electrical performance, mechanical properties, or functional compatibility. Bulk packaging is a logistics and inventory consideration only.

Q: What is the significance of the RoHS3 compliance on the substitute part?

A: ROHS3 Compliant status on the 3-643814-9 indicates compliance with the most current RoHS directive requirements. Both parts meet RoHS standards; the substitute reflects updated regulatory certification. This does not affect functional performance but may be relevant for procurement in specific regulatory jurisdictions.

Q: Can these connectors be used with both discrete and ribbon cable?

A: Yes. Both the main part and substitute are specified for use with discrete or ribbon cable at 24 AWG wire gauge. The IDC termination method accommodates both cable types without modification.

Q: What is the locking ramp fastening type?

A: The locking ramp is the mechanical fastening mechanism that secures the connector to the mating plug. Both the 643814-9 and 3-643814-9 use identical locking ramp fastening, ensuring compatible mating and retention.

Q: Are there any environmental or storage differences between these parts?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating equivalent environmental performance and unlimited shelf life under standard storage conditions. No special handling or storage differences apply between the two parts.