TE Connectivity AMP Connectors 641537-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 641537-2 is a 2 Position Rectangular Receptacle Connector designed for IDC (Insulation Displacement Contact) termination with 28 AWG wire. This connector operates as a female socket receptacle in the MTA-100 series and features a closed-end design with tin contact finish. The part is currently in active production status. Substitute parts are identified to address inventory availability, packaging requirements, or compliance specifications while maintaining electrical and mechanical compatibility.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution eligibility for the 641537-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

Connector type (Receptacle)
Contact type (Female Socket)
Number of positions (2)
Pitch (0.100" / 2.54mm)
Cable termination method (IDC)
Wire gauge (28 AWG)
Contact finish (Tin)
Contact finish thickness (80.0µin / 2.03µm)

Mechanical Compatibility Parameters:

Number of rows (1)
Mounting type (Free Hanging In-Line, Right Angle)
Fastening type (Locking Ramp)
Features (Closed End)
Color (Green)
Series designation (MTA-100)

Substitute parts must match all parameters listed above. Variations in packaging type or RoHS compliance status do not affect functional interchangeability but may impact procurement and regulatory requirements.

Parameter Comparison

Parameter	641537-2 (Main Part)	3-641537-2 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	2	2
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	Closed End	Closed End
Contact Finish	Tin	Tin
Contact Finish Thickness	80.0µin (2.03µm)	80.0µin (2.03µm)
Color	Green	Green
Product Status	Active	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99

Engineering Selection Recommendations

Both the 641537-2 and 3-641537-2 are active production parts from TE Connectivity AMP Connectors with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Packaging Consideration: The 641537-2 is supplied in standard packaging, while the 3-641537-2 is supplied in bulk packaging. Bulk packaging may be appropriate for high-volume production environments or when component consolidation is required.

Compliance Status: The 3-641537-2 carries RoHS Compliant certification, whereas the 641537-2 has RoHS Status listed as Not applicable. For applications subject to RoHS directives or customer specifications requiring RoHS compliance, the 3-641537-2 is the appropriate selection.

Inventory Availability: The 3-641537-2 maintains higher inventory levels (2321 pcs) compared to the 641537-2 (921 pcs), which may influence procurement lead times and supply chain planning.

Both parts are functionally equivalent for IDC rectangular connector applications requiring 2-position, 28 AWG, tin-plated female socket receptacles in the MTA-100 series.

Frequently Asked Questions (FAQ)

Q: Are the 641537-2 and 3-641537-2 electrically interchangeable?

A: Yes. Both parts are identical in electrical specifications, including contact type, pitch, wire gauge, contact finish, and termination method. They function identically in circuit applications.

Q: What is the difference between these two part numbers?

A: The primary differences are packaging type (standard versus bulk) and RoHS compliance status. The 3-641537-2 is RoHS Compliant, while the 641537-2 is not applicable for RoHS. All electrical and mechanical parameters are identical.

Q: Can I use the 3-641537-2 as a direct replacement for the 641537-2 in existing designs?

A: Yes. The 3-641537-2 is a direct functional substitute. No design modifications are required. Verify that bulk packaging meets your procurement and storage requirements.

Q: Does RoHS compliance affect connector performance?

A: RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both parts deliver identical electrical and mechanical performance in applications.

Q: What wire gauges are compatible with these connectors?

A: These connectors are specified for 28 AWG wire. Both discrete and ribbon cable configurations are supported through the IDC termination method.

Q: Are these connectors suitable for ribbon cable applications?

A: Yes. The IDC termination method supports both discrete wire and ribbon cable configurations. The closed-end design accommodates standard ribbon cable widths for 2-position applications.

Q: What is the pitch specification, and why is it important?

A: The pitch is 0.100" (2.54mm), which defines the center-to-center spacing between connector positions. This specification ensures compatibility with mating connectors and PCB layouts designed for the MTA-100 series.

Q: Can these receptacle connectors be used with different contact finishes?

A: No. These parts are specified with tin contact finish at 80.0µin (2.03µm) thickness. Substitution with different contact finishes is not permitted.

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