TE Connectivity 644486-3 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644486-3 is a shrouded vertical connector header designed for through-hole mounting in board-to-cable/wire applications. This component features a 3-position configuration with 0.100" (2.54mm) pitch spacing and is part of the MTA-100 series. The part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design and procurement requirements. The substitute part maintains identical electrical and mechanical specifications while offering improved product status and compliance characteristics.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	3
Number of Rows	1
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Termination	Solder
Operating Temperature Range	-55°C ~ 105°C
Voltage Rating	250VAC
Material Flammability Rating	UL94 V-0
Series	MTA-100

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 644486-3 with part number 2-644486-3 is based on strict equivalence across all critical electrical and mechanical parameters. Both parts share identical specifications for connector type, contact configuration, pitch spacing, mounting methodology, shrouding design, and termination approach. The substitute maintains the same operating temperature range of -55°C to 105°C, voltage rating of 250VAC, and UL94 V-0 flammability classification.

The key parameters determining substitution eligibility are:

Connector type classification (Header)
Contact type and gender (Male Pin)
Position count and row configuration (3 positions, 1 row)
Mating pitch specification (0.100" / 2.54mm)
Through-hole mounting compatibility
Shrouding configuration (Shrouded - 4 Wall)
Solder termination method
Thermal and electrical ratings

The substitute part 2-644486-3 satisfies all these criteria and is therefore electrically and mechanically interchangeable with the original part number.

Parameter Comparison

Parameter	644486-3 (Original)	2-644486-3 (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	3	3
Number of Rows	1	1
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder
Fastening Type	Friction Lock	Friction Lock
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
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Voltage Rating	250VAC	250VAC
Applications	General Purpose	General Purpose
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The substitute part 2-644486-3 is the direct equivalent for the obsolete TE Connectivity 644486-3. Selection of the substitute part is based on the following engineering criteria:

Product Status: The original part 644486-3 carries an obsolete designation, limiting long-term availability and supply chain reliability. The substitute part 2-644486-3 maintains active product status, ensuring continued procurement capability and manufacturer support.

Compliance and Certifications: The substitute part 2-644486-3 achieves RoHS compliance, whereas the original part is RoHS non-compliant. Both parts maintain identical UL94 V-0 flammability ratings and equivalent electrical/mechanical specifications. The substitute part satisfies modern regulatory requirements for electronic component procurement.

Electrical and Mechanical Equivalence: The substitute part maintains complete functional equivalence across all specified parameters including connector type, contact configuration, pitch spacing, mounting methodology, thermal ratings, and voltage specifications. No design modifications are required for direct substitution.

Inventory and Availability: The substitute part 2-644486-3 is available in significantly higher quantities (2477 pieces) compared to the original part (708 pieces), providing improved supply chain stability.

For new designs and ongoing production requirements, the substitute part 2-644486-3 is the appropriate selection. For legacy systems currently utilizing the original part 644486-3, the substitute provides a direct replacement without requiring circuit board redesign or connector interface modifications.

Frequently Asked Questions (FAQ)

Q: Are parts 644486-3 and 2-644486-3 electrically interchangeable?

A: Yes. Both parts are electrically equivalent. They share identical voltage ratings (250VAC), operating temperature ranges (-55°C to 105°C), contact materials (Copper Alloy), and termination methods (Solder). No electrical performance differences exist between the two part numbers.

Q: Are parts 644486-3 and 2-644486-3 mechanically interchangeable?

A: Yes. Both parts are mechanically equivalent. They feature identical connector types (Header), contact configurations (3-position, 1-row, Male Pin), pitch spacing (0.100" / 2.54mm), mounting methods (Through Hole), shrouding design (Shrouded - 4 Wall), and physical dimensions. Direct substitution on printed circuit boards is possible without modification.

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

A: The primary differences are product status and regulatory compliance. Part 644486-3 is obsolete and RoHS non-compliant, while part 2-644486-3 is active and RoHS compliant. The contact finish differs slightly: 644486-3 uses Tin-Lead finish, while 2-644486-3 uses Tin finish. All electrical and mechanical specifications remain identical.

Q: Can I use 2-644486-3 as a replacement for 644486-3 in existing designs?

A: Yes. The substitute part 2-644486-3 is a direct replacement for 644486-3. No circuit board modifications, connector interface changes, or design alterations are required. The parts are pin-compatible and functionally equivalent.

Q: What is the packaging difference between these parts?

A: The original part 644486-3 packaging specification is not provided in the technical data. The substitute part 2-644486-3 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Are there any temperature or voltage limitations when substituting these parts?

A: No. Both parts maintain identical operating temperature ranges (-55°C to 105°C) and voltage ratings (250VAC). No thermal or electrical limitations apply to substitution.

Q: What is the significance of the RoHS compliance difference?

A: RoHS compliance indicates the substitute part 2-644486-3 meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. The original part 644486-3 does not meet these requirements. For applications subject to RoHS regulations or modern procurement standards, the substitute part is required.

Q: Are both parts suitable for general-purpose applications?

A: Yes. Both parts are classified for general-purpose applications. The 3-position, 0.100" pitch configuration and through-hole mounting method support standard board-to-cable/wire interconnection requirements across diverse industrial and commercial applications.

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