TE Connectivity AMP Connectors 644486-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644486-4 is a rectangular connector header designed for through-hole mounting applications. This connector is a vertical 4-position header with 0.100" (2.54mm) pitch spacing, commonly used in board-to-cable and board-to-wire configurations. The part operates within a temperature range of -55°C to 105°C and carries a voltage rating of 250VAC, making it suitable for general-purpose electronic applications.

The 644486-4 is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and repair requirements for legacy systems utilizing this connector series.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	4
Number of Rows	1
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Shrouding	Shrouded - 4 Wall
Operating Temperature Range	-55°C ~ 105°C
Voltage Rating	250VAC
Series	MTA-100
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution of the 644486-4 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

Connector type (Header)
Contact type (Male Pin)
Number of positions (4)
Pitch spacing (0.100" / 2.54mm)
Voltage rating (250VAC)
Operating temperature range (-55°C ~ 105°C)

Mechanical Parameters:

Mounting type (Through Hole)
Termination method (Solder)
Shrouding configuration (Shrouded - 4 Wall)
Series designation (MTA-100)
Contact shape (Square)
Insulation material (Polyester)
Flammability rating (UL94 V-0)

Functional Parameters:

Style (Board to Cable/Wire)
Fastening type (Friction Lock)
Features (Board Guide)

The substitute part 2-644486-4 maintains complete equivalence across all critical electrical, mechanical, and functional parameters. Differences in product status, packaging configuration, and contact finish material do not affect functional interchangeability in the specified application.

Parameter Comparison

Parameter	644486-4 (Main Part)	2-644486-4 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	4	4
Number of Rows	1	1
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Length - Mating	0.200" (5.08mm)	0.200" (5.08mm)
Contact Length - Post	0.140" (3.56mm)	0.140" (3.56mm)
Overall Contact Length	0.440" (11.18mm)	0.440" (11.18mm)
Insulation Height	0.410" (10.41mm)	0.410" (10.41mm)
Contact Shape	Square	Square
Contact Material	Copper Alloy	Copper Alloy
Insulation Material	Polyester	Polyester
Insulation Color	Black	Black
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C
Voltage Rating	250VAC	250VAC
Material Flammability Rating	UL94 V-0	UL94 V-0
Fastening Type	Friction Lock	Friction Lock
Features	Board Guide	Board Guide
Style	Board to Cable/Wire	Board to Cable/Wire
Contact Finish - Mating	Tin-Lead	Tin
Contact Finish - Post	Tin-Lead	Tin
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
REACH Status	Vendor Undefined	REACH Unaffected
Packaging	Not specified	Bulk
Inventory Status	734 Pcs New Original In Stock	5112 Pcs New Original In Stock

Engineering Selection Recommendations

The 2-644486-4 serves as the direct substitute for the obsolete 644486-4. Both parts maintain identical electrical and mechanical specifications across all critical parameters required for functional interchangeability.

Product Status Consideration: The 644486-4 is classified as obsolete, while the 2-644486-4 is active. Selection of the active substitute part ensures continued availability and support for new production runs and ongoing maintenance applications.

Compliance and Certification: The 2-644486-4 holds ROHS3 compliance and REACH Unaffected status, whereas the 644486-4 is RoHS non-compliant with vendor-undefined REACH status. For applications subject to regulatory requirements or environmental compliance mandates, the 2-644486-4 is the appropriate selection.

Contact Finish Specification: The primary difference between the parts is the contact finish material. The 644486-4 features Tin-Lead plating, while the 2-644486-4 uses Tin plating. Both finishes provide equivalent electrical performance and corrosion resistance for the specified application parameters. The Tin finish of the substitute part aligns with modern manufacturing standards and RoHS compliance requirements.

Inventory and Availability: The 2-644486-4 maintains significantly higher inventory levels (5112 pieces) compared to the 644486-4 (734 pieces), supporting reliable component sourcing for production requirements.

Frequently Asked Questions (FAQ)

Q: Can the 2-644486-4 be used as a direct replacement for the 644486-4 in existing designs?

A: Yes. The 2-644486-4 is functionally equivalent to the 644486-4 across all critical electrical and mechanical parameters. Both connectors share identical pitch spacing (0.100" / 2.54mm), position count (4), mounting type (through-hole solder), shrouding configuration (4-wall), and operating specifications (-55°C to 105°C, 250VAC rating). The parts are interchangeable for board-to-cable and board-to-wire applications.

Q: What is the difference between the Tin-Lead finish on the 644486-4 and the Tin finish on the 2-644486-4?

A: Both finishes provide equivalent electrical conductivity and corrosion resistance for the specified application. The Tin finish on the 2-644486-4 represents current manufacturing standards and supports RoHS3 compliance. The Tin-Lead finish on the 644486-4 is a legacy specification. For new designs and applications subject to environmental regulations, the Tin finish is the appropriate selection.

Q: Why is the 644486-4 listed as obsolete?

A: The 644486-4 has been superseded by the 2-644486-4 in the manufacturer's product line. The 2-644486-4 maintains full functional equivalence while offering improved compliance status and active production support.

Q: Are there packaging differences between these parts?

A: The 644486-4 packaging is not specified in the available documentation. The 2-644486-4 is supplied in bulk packaging. Packaging configuration does not affect functional performance or interchangeability for solder-based through-hole applications.

Q: What is the significance of the RoHS3 compliance on the 2-644486-4?

A: RoHS3 compliance indicates that the 2-644486-4 meets current European Union Restriction of Hazardous Substances regulations. This certification is required for products sold in regulated markets and is relevant for applications subject to environmental compliance mandates. The 644486-4, being RoHS non-compliant, may face restrictions in certain markets or applications.

Q: Can both parts be used interchangeably in legacy system repairs?

A: Yes. Both the 644486-4 and 2-644486-4 are mechanically and electrically compatible for repair and maintenance of existing systems. The 2-644486-4 is recommended for new repairs due to its active product status and improved compliance certifications.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in connector type (header), contact type (male pin), position count (4), pitch spacing (0.100" / 2.54mm), mounting method (through-hole solder), shrouding (4-wall), operating temperature range (-55°C to 105°C), voltage rating (250VAC), and series designation (MTA-100). The 2-644486-4 meets all these criteria.

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