TE Connectivity AMP Connectors 3-644759-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-644759-3 is an active rectangular connector header designed for through-hole mounting applications. This vertical connector accommodates 3 positions with a 0.156" (3.96mm) pitch and is configured for board-to-cable/wire connections. The connector features shrouded design with friction lock fastening and solder termination, making it suitable for general purpose and industrial applications requiring reliable interconnection in temperature ranges from -55°C to 105°C.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, ensuring functional compatibility in target applications.

Substiute Parts

3-644759-3

TE Connectivity AMP ConnectorsIn Stock: 22313-644759-3 Datasheet

Current PartRFQ

0026482035

MolexIn Stock: 15520026482035 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 3-644759-3 are identified based on alignment of critical electrical and mechanical parameters that determine functional compatibility. The substitution logic is based on the following parameters:

Critical Matching Parameters:

• Pitch - Mating: 0.156" (3.96mm)
• Number of Positions: 3
• Number of Rows: 1
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Shrouding: Shrouded - 1 Wall
• Fastening Type: Friction Lock
• Contact Finish - Mating: Gold
• Contact Finish - Post: Tin
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The Molex 0026482035 connector meets these critical parameters and is classified as a functional equivalent for the TE Connectivity 3-644759-3 in applications requiring rectangular header connectors with identical pitch, position count, and mounting characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the TE Connectivity 3-644759-3 and Molex 0026482035 connectors are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component selection.

The TE Connectivity 3-644759-3 is the primary specification with documented operating temperature range of -55°C to 105°C and voltage rating of 600VAC. This part is manufactured from copper alloy with thermoplastic glass-filled insulation and carries a higher gold plating thickness of 30.0µin on mating contacts.

The Molex 0026482035 serves as a functional equivalent for applications where the connector pitch, position count, mounting method, and termination type are the primary selection criteria. This part features brass contact material with polyester insulation and 20.0µin gold plating thickness on mating contacts. The Molex connector includes breakaway capability, providing additional design flexibility in certain applications.

Selection between these parts should be based on specific application requirements regarding contact material composition, insulation material properties, and plating thickness specifications. Both parts satisfy UL94 V-0 flammability requirements and unlimited moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine if the Molex 0026482035 can substitute for the TE Connectivity 3-644759-3?

A: The critical parameters are pitch (0.156" / 3.96mm), position count (3), row configuration (1 row), connector type (header), contact type (male pin), mounting method (through hole), termination (solder), shrouding (shrouded - 1 wall), fastening type (friction lock), contact finish on mating surfaces (gold), contact finish on posts (tin), flammability rating (UL94 V-0), RoHS compliance (ROHS3), and moisture sensitivity level (1 - Unlimited). Both parts match these parameters.

Q: Are there dimensional differences between these connectors?

A: Yes. The Molex 0026482035 has a longer overall contact length (0.750" vs 0.700"), greater insulation height (0.500" vs 0.425"), and longer mating contact length (0.450" vs 0.400"). The post contact length is nearly identical (0.172" vs 0.175"). These dimensional variations may affect fit in space-constrained applications or when mating with specific receptacle designs.

Q: What is the difference in contact material between these parts?

A: The TE Connectivity 3-644759-3 uses copper alloy contacts, while the Molex 0026482035 uses brass contacts. Both materials are suitable for general purpose and industrial applications. Copper alloy typically offers superior electrical conductivity, while brass provides enhanced corrosion resistance in certain environments.

Q: How do the insulation materials differ?

A: The TE Connectivity part uses thermoplastic with glass filler, providing enhanced mechanical strength and thermal stability. The Molex part uses polyester insulation. Both materials achieve UL94 V-0 flammability rating. The choice between these materials depends on specific thermal and mechanical requirements of the application.

Q: What is the significance of the gold plating thickness difference?

A: The TE Connectivity 3-644759-3 has 30.0µin (0.76µm) gold plating on mating contacts, while the Molex 0026482035 has 20.0µin (0.51µm). Thicker gold plating generally provides enhanced contact durability and corrosion resistance over extended mating cycles. Applications requiring high cycle counts or harsh environments may benefit from the thicker plating of the TE Connectivity part.

Q: Are operating temperature specifications available for the Molex connector?

A: Operating temperature range is not specified in the available data for the Molex 0026482035. The TE Connectivity 3-644759-3 is rated for -55°C to 105°C. Applications requiring operation outside standard temperature ranges should use the TE Connectivity part with documented temperature specifications.

Q: What does the breakaway feature on the Molex connector provide?

A: The Molex 0026482035 includes breakaway capability, allowing individual connector positions to be separated if required. This feature provides design flexibility for applications where modular connector configurations are beneficial. The TE Connectivity 3-644759-3 does not include this feature.

Q: Are both connectors suitable for industrial applications?

A: Yes. Both the TE Connectivity 3-644759-3 and Molex 0026482035 are rated for industrial applications. Both achieve ROHS3 compliance, REACH unaffected status, and UL94 V-0 flammability rating, meeting industrial component standards. The Molex part also lists automotive, medical, and telecommunications applications.

Q: What is the voltage rating for the Molex connector?

A: Voltage rating is not specified in the available data for the Molex 0026482035. The TE Connectivity 3-644759-3 is rated for 600VAC. Applications with specific voltage requirements should reference the TE Connectivity part specifications or contact the manufacturer for Molex voltage rating information.

Q: Can these connectors be used interchangeably in existing designs?

A: Interchangeability depends on specific design constraints. The dimensional differences, particularly in overall contact length and insulation height, may affect fit with existing receptacles or PCB layouts. The differences in contact material, insulation material, and plating thickness may also influence performance in specific electrical or environmental conditions. Design verification is necessary when substituting between these parts in existing applications.