TE Connectivity 2-103644-0 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 2-103644-0 is a 21-position rectangular receptacle connector designed for IDC (Insulation Displacement Contact) termination with 22-26 AWG wire. This connector features gold-plated contacts, a closed-end design, and latch lock fastening suitable for free-hanging in-line applications.

The 2-103644-0 carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure continued availability, maintain design compatibility, and support ongoing production and field service requirements for systems utilizing this connector type.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	21
Pitch	0.100" (2.54mm)
Number of Rows	1
Mounting Type	Free Hanging (In-Line)
Fastening Type	Latch Lock
Cable Termination	IDC
Wire Gauge	22-26 AWG
Contact Finish	Gold
Features	Closed End
Series	AMPMODU MTE

Substitute Part Grouping Explanation

Substitution eligibility for the 2-103644-0 is determined by strict equivalence across the following critical parameters:

Connector Configuration: Receptacle type with 21 female socket contacts
Contact Pitch: 0.100" (2.54mm) spacing
Termination Method: IDC cable termination capability
Wire Gauge Compatibility: 22-26 AWG wire acceptance
Contact Material: Gold plating with 15.0µin (0.38µm) thickness
Mechanical Design: Closed-end housing with latch lock fastening
Mounting Orientation: Free-hanging in-line configuration

The substitute part 7-103644-0 maintains identical electrical and mechanical specifications across all these parameters, differing only in product status (active versus obsolete) and packaging configuration (tube versus unspecified).

Parameter Comparison

Parameter	2-103644-0 (Main Part)	7-103644-0 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Category	Rectangular Connectors	Rectangular Connectors
Series	AMPMODU MTE	AMPMODU MTE
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	21	21
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Latch Lock	Latch Lock
Cable Termination	IDC	IDC
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable
Wire Gauge	22-26 AWG	22-26 AWG
Features	Closed End	Closed End
Contact Finish	Gold	Gold
Contact Finish Thickness	15.0µin (0.38µm)	15.0µin (0.38µm)
Color	Black	Black
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The 7-103644-0 serves as the direct functional equivalent to the obsolete 2-103644-0. Both connectors are manufactured by TE Connectivity within the AMPMODU MTE series and maintain identical electrical and mechanical specifications.

Product Status Consideration: The 2-103644-0 is classified as obsolete, while the 7-103644-0 maintains active product status. For new designs, ongoing production, and field service applications, the 7-103644-0 is the appropriate selection to ensure long-term component availability and supply chain continuity.

Compliance Differentiation: The 7-103644-0 is RoHS compliant, whereas the 2-103644-0 is RoHS non-compliant. Applications subject to RoHS regulatory requirements must utilize the 7-103644-0. For legacy systems or applications without RoHS mandates, both parts remain functionally interchangeable.

Packaging: The 7-103644-0 is supplied in tube packaging, which may affect procurement, handling, and inventory management procedures compared to the main part's unspecified packaging configuration.

Frequently Asked Questions (FAQ)

Q: Are the 2-103644-0 and 7-103644-0 electrically and mechanically interchangeable?

A: Yes. Both connectors maintain identical specifications for contact count (21 positions), pitch (0.100"), termination method (IDC), wire gauge acceptance (22-26 AWG), contact material (gold plating at 15.0µin thickness), and mechanical design (closed-end, latch lock fastening). They are direct functional equivalents.

Q: Why should I transition from the 2-103644-0 to the 7-103644-0?

A: The 2-103644-0 is obsolete, creating supply and availability risks. The 7-103644-0 is an active product with confirmed inventory and ongoing manufacturer support. Additionally, the 7-103644-0 is RoHS compliant, meeting current regulatory requirements for many applications and markets.

Q: What is the difference in packaging between these two parts?

A: The 7-103644-0 is supplied in tube packaging. The 2-103644-0 packaging configuration is not specified in the available data. Tube packaging may affect order quantities, storage requirements, and handling procedures.

Q: Can I use the 7-103644-0 as a direct replacement in existing assemblies designed for the 2-103644-0?

A: Yes. The 7-103644-0 is a direct substitute with identical connector geometry, contact configuration, and termination characteristics. No design modifications are required.

Q: Are there any compliance differences between these connectors?

A: The 7-103644-0 is RoHS compliant, while the 2-103644-0 is RoHS non-compliant. Both carry the same ECCN classification (EAR99). Applications subject to RoHS regulations must use the 7-103644-0.

Q: What wire gauges are compatible with both connectors?

A: Both the 2-103644-0 and 7-103644-0 accept 22-26 AWG wire for IDC termination. They support both discrete and ribbon cable configurations.

Q: Is the moisture sensitivity level the same for both parts?

A: Yes. Both connectors are rated at MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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