TE Connectivity AMP Connectors 3-647649-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-647649-3 is an active rectangular connector header designed for through-hole mounting applications. This shrouded, single-wall header connector accommodates 3 positions at 0.156" (3.96mm) pitch and is configured for board-to-cable or board-to-board interconnection. The connector features male pins with gold-plated mating contacts and tin-plated posts, suitable for general purpose and industrial applications operating across -55°C to 105°C. Substitute parts are identified to address inventory availability, alternative sourcing requirements, or specific application constraints while maintaining functional compatibility within the MTA-156 and equivalent series standards.

Key Parameters

Parameter	Specification
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.156" (3.96mm)
Number of Positions	3
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Shrouding	Shrouded - 1 Wall
Fastening Type	Friction Lock
Contact Length - Mating	0.450" (11.43mm)
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connector headers is determined by strict alignment of core electrical and mechanical parameters. The following criteria establish functional interchangeability:

Primary Matching Criteria:

Connector type (Header)
Contact type (Male Pin)
Pitch - mating (0.156" / 3.96mm)
Number of positions (3)
Number of rows (1)
Mounting type (Through Hole)
Termination method (Solder)
Shrouding configuration (Shrouded - 1 Wall)
Fastening type (Friction Lock)
Contact length - mating (0.450" / 11.43mm)

Secondary Compatibility Factors:

Material flammability rating (UL94 V-0 or equivalent)
Moisture sensitivity level (MSL 1)
Product status (Active)
RoHS compliance status

All identified substitute parts meet these core parameters. Variations in contact shape (circular versus square), contact finish composition, insulation material, and post dimensions represent acceptable engineering tolerances within the rectangular connector header category and do not preclude functional substitution in board-to-cable or board-to-board applications.

Parameter Comparison

Parameter	3-647649-3 (TE Connectivity)	0026604030 (Molex)	0026614030 (Molex)	0417910850 (Molex)	1718130003 (Molex)	1718133003 (Molex)
Manufacturer	TE Connectivity AMP Connectors	Molex	Molex	Molex	Molex	Molex
Connector Type	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)
Number of Positions	3	3	3	3	3	3
Number of Rows	1	1	1	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Shrouding	Shrouded - 1 Wall	Shrouded - 1 Wall	Shrouded - 1 Wall	Shrouded - 1 Wall	Shrouded - 1 Wall	Shrouded - 1 Wall
Fastening Type	Friction Lock	Friction Lock	Friction Lock	Friction Lock	Friction Lock	Friction Lock
Contact Length - Mating	0.450" (11.43mm)	0.450" (11.43mm)	0.450" (11.43mm)	0.450" (11.43mm)	0.448" (11.38mm)	0.448" (11.38mm)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-2	UL94 V-2
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active
Packaging	Not specified	Bulk	Bulk	Bulk	Bulk	Cut Tape (CT)

Engineering Selection Recommendations

All identified substitute parts maintain active product status and comply with RoHS requirements, ensuring regulatory alignment with current environmental standards. The Molex KK396 series parts (0026604030, 0026614030, 0417910850) and Molex 171813 series parts (1718130003, 1718133003) satisfy the core electrical and mechanical parameters required for functional substitution.

Compliance Considerations:

The TE Connectivity 3-647649-3 carries UL94 V-0 flammability rating. Molex parts 0026604030, 0026614030, and 0417910850 maintain UL94 V-0 compliance. Molex parts 1718130003 and 1718133003 carry UL94 V-2 flammability rating, representing a lower flammability classification. Selection between V-0 and V-2 rated components depends on application-specific flammability requirements and regulatory mandates.

Inventory and Packaging:

Substitute parts are available in varying inventory quantities and packaging formats. Molex 0026604030 offers the highest inventory availability (69,095 pcs). Molex 1718133003 is supplied in Cut Tape (CT) packaging, suitable for automated assembly processes. All other substitute parts are supplied in Bulk packaging.

Series Compatibility:

TE Connectivity 3-647649-3 belongs to the MTA-156 series. Molex substitute parts belong to KK396 and 171813 series designations. These series represent equivalent connector families within the 0.156" (3.96mm) pitch rectangular header category.

Frequently Asked Questions (FAQ)

Q: What determines whether a rectangular connector header can substitute for the TE Connectivity 3-647649-3?

A: Functional substitution requires matching core parameters: 3-position, single-row configuration; 0.156" (3.96mm) mating pitch; through-hole mounting; solder termination; shrouded 1-wall design; friction lock fastening; and 0.450" (11.43mm) mating contact length. All identified Molex parts satisfy these criteria.

Q: Are there differences in contact finish between the main part and substitute parts?

A: Yes. The TE Connectivity 3-647649-3 features gold-plated mating contacts (15.0µin thickness). Molex 0026604030 and 1718130003/1718133003 use tin-plated mating contacts (60.0µin thickness). Molex 0026614030 and 0417910850 use gold-plated mating contacts with varying thickness (20.0µin and 30.0µin respectively). Contact finish selection depends on application corrosion resistance and electrical conductivity requirements.

Q: What is the significance of the UL94 V-0 versus UL94 V-2 flammability ratings?

A: UL94 V-0 represents a higher flammability classification than UL94 V-2. Applications requiring V-0 compliance must use TE Connectivity 3-647649-3, Molex 0026604030, 0026614030, or 0417910850. Applications with V-2 tolerance can use Molex 1718130003 or 1718133003.

Q: How do contact shape differences (circular versus square) affect substitution?

A: The TE Connectivity 3-647649-3 features circular contact geometry. Molex substitute parts feature square contact geometry. Both geometries are functionally compatible within the 0.156" (3.96mm) pitch rectangular header category and do not preclude electrical or mechanical interchangeability.

Q: What packaging options are available for these substitute parts?

A: Molex 0026604030, 0026614030, and 0417910850 are supplied in Bulk packaging. Molex 1718130003 is supplied in Bulk packaging. Molex 1718133003 is supplied in Cut Tape (CT) packaging with Pick and Place capability, suitable for automated assembly operations.

Q: Are all substitute parts RoHS compliant?

A: Yes. The TE Connectivity 3-647649-3 is RoHS Compliant. All Molex substitute parts are ROHS3 Compliant, representing current RoHS directive compliance standards.

Q: What is the moisture sensitivity level for these connectors?

A: All parts, including the main TE Connectivity 3-647649-3 and all Molex substitutes, carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Can the Molex 1718130003 and 1718133003 be used interchangeably?

A: Yes. Both parts are electrically and mechanically identical. The primary difference is packaging: 1718130003 is supplied in Bulk format, while 1718133003 is supplied in Cut Tape (CT) format with Pick and Place features. Selection depends on assembly process requirements.

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