TE Connectivity 643813-9 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643813-9 is a 9-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features tin-lead contact finish, a closed-end design, and free-hanging or right-angle mounting configuration with locking ramp fastening. The part is currently active in production with 1117 pieces available in inventory. Substitute parts are identified to address specific application requirements, including RoHS compliance needs and packaging preferences.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	9
Pitch	0.100" (2.54mm)
Number of Rows	1
Contact Type	Female Socket
Cable Termination Method	IDC
Wire Gauge	22 AWG
Wire Type	Discrete or Ribbon Cable
Mounting Type	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp
Features	Closed End
Series	MTA-100
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution between the main part 643813-9 and the equivalent part 3-643813-9 is based on strict electrical and mechanical compatibility. Both connectors maintain identical specifications across all critical parameters that determine functional interchangeability:

Key Parameters for Substitution Compatibility:

Connector type, position count, and pitch (0.100")
Contact type and gender (Female Socket)
Cable termination method (IDC) and wire gauge (22 AWG)
Mounting configuration (Free Hanging/Right Angle) and fastening mechanism (Locking Ramp)
Closed-end design and color (Red)
Contact finish thickness (80.0µin / 2.03µm)
Moisture Sensitivity Level (MSL 1)

The primary distinction between these parts is the contact finish composition and RoHS compliance status. The 643813-9 features tin-lead contact finish and is RoHS non-compliant, while the 3-643813-9 features tin contact finish and is ROHS3 compliant. Both maintain the same electrical and mechanical performance characteristics required for MTA-100 series applications.

Parameter Comparison

Parameter	643813-9 (Main Part)	3-643813-9 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Receptacle	Receptacle
Number of Positions	9	9
Contact Type	Female Socket	Female Socket
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1
Mounting Type	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp	Locking Ramp
Cable Termination	IDC	IDC
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable
Wire Gauge	22 AWG	22 AWG
Features	Closed End	Closed End
Color	Red	Red
Contact Finish Thickness	80.0µin (2.03µm)	80.0µin (2.03µm)
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Contact Finish	Tin-Lead	Tin
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Product Status	Active	Active
Packaging	Standard	Bulk
Inventory	1117 Pcs	2995 Pcs

Engineering Selection Recommendations

643813-9 Selection Criteria: Select the 643813-9 for applications where RoHS non-compliance is acceptable and tin-lead contact finish is specified. This part is suitable for legacy systems, non-regulated environments, or applications where existing design specifications explicitly require tin-lead plating.

3-643813-9 Selection Criteria: Select the 3-643813-9 for applications requiring ROHS3 compliance. This part is suitable for new designs, regulated industries, and applications subject to environmental directives. The tin contact finish provides equivalent electrical performance while meeting modern compliance requirements. Higher inventory availability (2995 pieces) supports production volume requirements.

Both parts maintain active product status and are manufactured by TE Connectivity AMP Connectors. Selection between these parts should be based on regulatory compliance requirements and contact finish specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Are the 643813-9 and 3-643813-9 electrically interchangeable?

A: Yes. Both connectors maintain identical electrical specifications including contact type, pitch, wire gauge compatibility, and termination method. The difference in contact finish (tin-lead versus tin) does not affect electrical interchangeability within the specified 22 AWG wire gauge range.

Q: What is the primary difference between these two parts?

A: The primary differences are contact finish composition and RoHS compliance status. The 643813-9 features tin-lead finish and is RoHS non-compliant. The 3-643813-9 features tin finish and is ROHS3 compliant. All mechanical and electrical parameters remain identical.

Q: Can I use the 3-643813-9 as a direct replacement for the 643813-9?

A: Yes, the 3-643813-9 is a direct mechanical and electrical substitute for the 643813-9. Both connectors are 9-position MTA-100 series receptacles with identical pitch, mounting configuration, and IDC termination specifications.

Q: What does the packaging difference mean?

A: The 643813-9 is supplied in standard packaging, while the 3-643813-9 is supplied in bulk packaging. Bulk packaging typically offers higher piece counts per container, which may affect handling, storage, and inventory management procedures.

Q: Which part should I specify for new designs?

A: For new designs subject to environmental or regulatory requirements, specify the 3-643813-9 due to its ROHS3 compliance status. For legacy system maintenance or applications without compliance requirements, either part is acceptable based on design specifications.

Q: Are both parts currently in production?

A: Yes, both the 643813-9 and 3-643813-9 are active products in TE Connectivity's current product line with available inventory.

Q: Can these connectors accommodate both discrete and ribbon cable?

A: Yes, both connectors support discrete or ribbon cable termination via IDC method at 22 AWG wire gauge.

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