TE Connectivity 640623-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640623-2 is a 2-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 28 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 1,097 units in stock.

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

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	2
Pitch	0.100" (2.54mm)
Number of Rows	1
Contact Type	Female Socket
Cable Termination	IDC
Wire Gauge	28 AWG
Mounting Type	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp
Contact Finish Thickness	80.0µin (2.03µm)
Series	MTA-100

Substitute Part Grouping Explanation

Substitution between the main part 640623-2 and the equivalent part 3-640623-2 is based on strict electrical and mechanical parameter alignment. Both connectors share identical specifications across all critical dimensions and functional characteristics:

Key Parameters Determining Substitutability:

Connector type, position count, and pitch (0.100")
Contact type and wire gauge (28 AWG)
Cable termination method (IDC)
Mounting configuration and fastening mechanism
Contact finish thickness (80.0µin)
Series designation (MTA-100)

The primary distinction between these parts is the contact finish composition (tin-lead versus tin) and packaging format (tape versus bulk), along with RoHS compliance status. These differences do not affect electrical or mechanical compatibility in applications where the connector specifications are met.

Parameter Comparison

Parameter	640623-2	3-640623-2
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Receptacle	Receptacle
Number of Positions	2	2
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	28 AWG	28 AWG
Features	Feed Through	Feed Through
Contact Finish Thickness	80.0µin (2.03µm)	80.0µin (2.03µm)
Color	Green	Green
Base Product Number	640623	640623
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.8000	8536.69.8000
Contact Finish	Tin-Lead	Tin
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging	Tape	Bulk
Inventory	1,097 Pcs	6,215 Pcs

Engineering Selection Recommendations

640623-2 (Tin-Lead, RoHS Non-Compliant): Use this part number when legacy system designs or specific application requirements mandate tin-lead contact finish. This part is suitable for applications not subject to RoHS3 compliance requirements. Current inventory availability is 1,097 units.

3-640623-2 (Tin, ROHS3 Compliant): Use this part number for new designs, production runs requiring RoHS3 compliance, or when regulatory mandates necessitate lead-free contact finishes. This variant maintains full electrical and mechanical compatibility with the original specification while meeting modern environmental standards. Bulk packaging format is available with higher inventory levels (6,215 units).

Both parts are active products from TE Connectivity AMP Connectors and are suitable for direct substitution based on connector specifications, provided that compliance requirements and contact finish material specifications are satisfied by the application requirements.

Frequently Asked Questions (FAQ)

Q: Are 640623-2 and 3-640623-2 electrically and mechanically interchangeable?

A: Yes. Both connectors share identical electrical and mechanical specifications including connector type, position count, pitch, contact type, wire gauge, termination method, and mounting configuration. They are direct substitutes from an electrical and mechanical standpoint.

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

A: The 640623-2 features tin-lead contact finish, while the 3-640623-2 features tin contact finish. Both maintain the same contact finish thickness of 80.0µin (2.03µm). The primary distinction is the material composition, with tin-lead being RoHS non-compliant and tin being ROHS3 compliant.

Q: Which part should be selected for RoHS3 compliant applications?

A: The 3-640623-2 is ROHS3 compliant and is the appropriate selection for applications subject to RoHS3 regulatory requirements. The 640623-2 is RoHS non-compliant and should not be used in applications requiring RoHS3 certification.

Q: Does packaging format affect connector performance?

A: No. The 640623-2 is supplied in tape packaging, while the 3-640623-2 is supplied in bulk packaging. Packaging format does not affect electrical or mechanical performance. Selection should be based on production workflow, inventory management, and handling requirements.

Q: Are there any wire gauge or cable type restrictions between these parts?

A: No. Both connectors are rated for 28 AWG wire and accept discrete or ribbon cable types. Wire gauge and cable type specifications are identical between the two parts.

Q: What is the pitch specification for these connectors?

A: Both connectors feature a 0.100" (2.54mm) pitch, which defines the center-to-center spacing between contact positions. This specification is identical for both part numbers.

Q: Can these connectors be used in right-angle and in-line mounting configurations?

A: Yes. Both connectors support free hanging mounting in both in-line and right-angle orientations. Mounting flexibility is identical between the two parts.

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