TE Connectivity AMP Connectors 644760-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644760-8 is a rectangular connector header designed for through-hole mounting applications. This connector features 8 positions with 0.156" (3.96mm) pitch spacing, male pin contact type, and shrouded single-wall design. The part operates within the MTA-156 series and is classified as obsolete product status.

Due to the obsolete status of part number 644760-8, identifying equivalent and substitute components is necessary for ongoing design support, production continuity, and system maintenance. Direct replacements and functionally equivalent alternatives are available from TE Connectivity and Molex manufacturers.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	8
Pitch - Mating	0.156" (3.96mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 1 Wall
Termination	Solder
Fastening Type	Friction Lock
Operating Temperature Range	-55°C ~ 105°C
Voltage Rating	600VAC
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution logic for rectangular connectors in this category is determined by the following critical parameters: connector type, contact type, number of positions, mating pitch, mounting method, shrouding configuration, termination style, and fastening mechanism. All substitute parts listed maintain these core electrical and mechanical specifications.

Critical Parameters for Substitution:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 8
Pitch - Mating: 0.156" (3.96mm)
Mounting Type: Through Hole
Shrouding: Shrouded - 1 Wall
Termination: Solder
Fastening Type: Friction Lock

Substitute parts are grouped into two categories: direct manufacturer equivalents from TE Connectivity and functionally compatible alternatives from Molex. Direct equivalents maintain identical or near-identical physical and electrical characteristics. Compatible alternatives satisfy the core substitution parameters while introducing minor variations in contact geometry, material composition, or finish specifications.

Parameter Comparison

Parameter	644760-8 (Main)	3-644760-8 (TE Direct)	0026482085 (Molex)	0416710007 (Molex)
Manufacturer	TE Connectivity	TE Connectivity	Molex	Molex
Product Status	Obsolete	Active	Active	Active
Connector Type	Header	Header	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	8	8	8	8
Pitch - Mating	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)
Number of Rows	1	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Shrouding	Shrouded - 1 Wall	Shrouded - 1 Wall	Shrouded - 1 Wall	Shrouded - 1 Wall
Termination	Solder	Solder	Solder	Solder
Fastening Type	Friction Lock	Friction Lock	Friction Lock	Friction Lock
Contact Length - Mating	0.400" (10.16mm)	0.400" (10.16mm)	0.450" (11.43mm)	0.450" (11.43mm)
Contact Length - Post	0.175" (4.45mm)	0.175" (4.45mm)	0.172" (4.37mm)	0.172" (4.37mm)
Overall Contact Length	0.700" (17.78mm)	0.700" (17.78mm)	0.750" (19.05mm)	0.750" (19.05mm)
Insulation Height	0.425" (10.80mm)	0.425" (10.80mm)	0.500" (12.70mm)	0.500" (12.70mm)
Contact Shape	Circular	Circular	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold
Contact Material	Copper Alloy	Copper Alloy	Brass	Brass
Insulation Material	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	Polyester	Polyester
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	Not Specified	Not Specified
Voltage Rating	600VAC	600VAC	Not Specified	Not Specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Non-Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: TE Connectivity 3-644760-8

The TE Connectivity part number 3-644760-8 is the direct equivalent replacement for the obsolete 644760-8. This part maintains identical electrical and mechanical specifications including contact geometry, insulation height, operating temperature range, and voltage rating. The primary distinction is product status: 3-644760-8 is active and currently in production, ensuring long-term availability and supply chain continuity. Additionally, 3-644760-8 carries RoHS Compliant certification, addressing regulatory requirements for new designs and manufacturing processes. The contact finish on the post is specified as Tin rather than Tin-Lead, reflecting modern manufacturing standards.

Secondary Recommendation: Molex 0026482085 or 0416710007

The Molex rectangular connectors 0026482085 and 0416710007 function as compatible alternatives within the KK396 and 41671 series. These parts satisfy all critical substitution parameters: 8-position headers with 0.156" (3.96mm) pitch, through-hole mounting, shrouded single-wall design, solder termination, and friction lock fastening. Both Molex alternatives are active products with ROHS3 Compliant certification and REACH Unaffected status.

Differences between the main part and Molex alternatives include contact geometry (square versus circular), contact material (brass versus copper alloy), insulation material (polyester versus thermoplastic glass-filled), and insulation color (black versus natural). Contact length specifications differ slightly: Molex parts feature 0.450" (11.43mm) mating contact length and 0.500" (12.70mm) insulation height compared to 0.400" (10.16mm) and 0.425" (10.80mm) respectively for the TE parts. These dimensional variations require verification against specific board layout and mating connector specifications before implementation.

Compliance Considerations

The original 644760-8 is RoHS non-compliant. For new designs or manufacturing processes subject to RoHS regulations, 3-644760-8 or Molex alternatives are required. All substitute parts carry UL94 V-0 flammability certification, maintaining safety compliance across all options.

Frequently Asked Questions (FAQ)

Q: Can 3-644760-8 be used as a direct drop-in replacement for 644760-8?

A: Yes. The TE Connectivity 3-644760-8 maintains identical physical dimensions, electrical ratings, and mechanical specifications as the obsolete 644760-8. The part is functionally interchangeable for all applications where 644760-8 was previously specified.

Q: What are the key differences between TE Connectivity and Molex substitute options?

A: TE Connectivity 3-644760-8 is the direct equivalent with identical contact geometry (circular), material composition (copper alloy), and insulation specifications (thermoplastic glass-filled). Molex alternatives (0026482085 and 0416710007) feature square contact geometry, brass material, and polyester insulation. Molex parts also have slightly longer overall contact lengths (0.750" versus 0.700") and greater insulation height (0.500" versus 0.425"). These dimensional differences require verification against mating connector specifications and PCB layout constraints.

Q: Are the Molex parts compatible with existing mating connectors designed for 644760-8?

A: Compatibility depends on the specific mating connector design. While all parts share the same 0.156" (3.96mm) pitch and 8-position configuration, the dimensional variations in contact length and insulation height may affect fit with existing mating connectors. Physical verification is required before implementation in existing systems.

Q: What is the significance of the contact finish differences?

A: The original 644760-8 features Tin-Lead post finish. The TE Connectivity 3-644760-8 specifies Tin post finish, reflecting modern manufacturing standards and lead-free compliance. Molex alternatives specify Tin post finish with 100.0µin (2.54µm) thickness. These finishes are functionally equivalent for solder termination applications.

Q: Do all substitute parts meet the same operating temperature and voltage specifications?

A: TE Connectivity 3-644760-8 maintains identical operating temperature (-55°C ~ 105°C) and voltage rating (600VAC) specifications as the original 644760-8. Molex alternatives do not specify operating temperature or voltage ratings in the provided documentation. For applications requiring these specifications, TE Connectivity 3-644760-8 is the appropriate selection.

Q: What is the RoHS compliance status of each part?

A: The original 644760-8 is RoHS non-compliant. TE Connectivity 3-644760-8 is RoHS Compliant. Both Molex alternatives (0026482085 and 0416710007) are ROHS3 Compliant. For applications subject to RoHS regulations, all three substitute options are acceptable.

Q: Are there inventory considerations when selecting a substitute?

A: Current inventory levels are: 644760-8 (932 pcs), 3-644760-8 (777 pcs), 0026482085 (1557 pcs), and 0416710007 (1053 pcs). Inventory availability may vary based on current demand and supply conditions. Verify current stock status with component suppliers before finalizing procurement decisions.

Q: What packaging options are available for substitute parts?

A: The original 644760-8 packaging is not specified. TE Connectivity 3-644760-8 is available in Bulk packaging. Both Molex alternatives (0026482085 and 0416710007) are available in Bulk packaging. Confirm packaging requirements with procurement specifications before ordering.

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