TE Connectivity AMP Connectors 5-644759-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 5-644759-4 is a rectangular connector header designed for through-hole mounting applications. This connector features a 24-position, single-row configuration with 0.156" (3.96mm) pitch spacing and is classified as an obsolete product. The MTA-156 series connector is constructed with shrouded design, friction lock fastening, and gold-plated mating contacts suitable for general purpose and industrial applications. Due to its obsolete status, equivalent substitute parts from active product lines are necessary to maintain design continuity and ensure component availability for new production and field service requirements.

Substiute Parts

5-644759-4

TE Connectivity AMP ConnectorsIn Stock: 10895-644759-4 Datasheet

Current PartRFQ

0026481245

MolexIn Stock: 46840026481245 Datasheet

SimilarRFQ

0026482245

MolexIn Stock: 8390026482245 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 5-644759-4 with Molex rectangular connector headers is based on the following critical parameters that must align between the main part and substitute parts:

Core Matching Parameters:

• Connector Type: Header configuration
• Contact Type: Male Pin
• Number of Positions: 24
• Number of Rows: 1
• Pitch - Mating: 0.156" (3.96mm)
• Mounting Type: Through Hole
• Termination: Solder
• Shrouding: Shrouded - 1 Wall
• Fastening Type: Friction Lock
• Contact Shape: Square
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level: 1 (Unlimited)

The Molex KK396 series parts 0026481245 and 0026482245 satisfy all core matching parameters. Both substitute parts are active products with current manufacturing status, ensuring long-term availability. The substitutes maintain electrical and mechanical compatibility through identical pitch spacing, position count, mounting methodology, and shrouding configuration. Variations in contact finish composition and insulation material do not affect functional interchangeability within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 5-644759-4 is classified as an obsolete product, necessitating transition to active substitute components for ongoing production and support. Both Molex substitute parts—0026481245 and 0026482245—are active products with confirmed manufacturing status and current inventory availability.

Compliance and Certification Alignment:

Both Molex substitutes maintain UL94 V-0 material flammability rating, matching the original part specification. The substitutes are ROHS3 compliant, exceeding the RoHS compliance requirement of the original part. Both parts carry REACH Unaffected status and EAR99 ECCN classification, consistent with the original component. Moisture Sensitivity Level 1 (Unlimited) is maintained across all three parts, indicating no special handling requirements during storage or assembly.

Selection Between Substitute Options:

Molex 0026481245 features tin plating on mating contacts with 60.0µin (1.52µm) thickness, providing enhanced corrosion resistance in industrial environments. Molex 0026482245 features gold plating on mating contacts with 20.0µin (0.51µm) thickness, offering contact finish composition closer to the original TE Connectivity part. Both substitutes employ brass contact material and polyester insulation, differing from the original copper alloy and glass-filled thermoplastic composition. These material differences do not affect functional interchangeability within the specified electrical and mechanical parameter constraints.

The selection between 0026481245 and 0026482245 depends on application-specific requirements regarding contact finish durability and environmental exposure. Both parts satisfy the core substitution criteria and are suitable for general purpose and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can Molex 0026481245 and 0026482245 be used interchangeably with TE Connectivity 5-644759-4?

A: Both Molex parts satisfy the core electrical and mechanical parameters required for substitution. They maintain identical pitch spacing (0.156"), position count (24), mounting type (through hole), termination method (solder), and shrouding configuration (shrouded - 1 wall). The primary differences are contact finish composition and insulation material, which do not affect functional interchangeability within the specified parameter constraints.

Q: What are the key differences between Molex 0026481245 and 0026482245?

A: The primary difference is contact finish on mating surfaces. Molex 0026481245 features tin plating at 60.0µin (1.52µm) thickness, while Molex 0026482245 features gold plating at 20.0µin (0.51µm) thickness. Both parts use identical brass contact material, polyester insulation, and maintain the same overall dimensions and electrical characteristics.

Q: Why is the TE Connectivity 5-644759-4 classified as obsolete?

A: The product status reflects that TE Connectivity has discontinued manufacturing this component. Molex KK396 series alternatives provide equivalent functionality with active manufacturing status, ensuring long-term component availability and supply chain continuity.

Q: Are there any dimensional differences between the original part and substitutes?

A: Yes. The Molex substitutes have slightly larger overall contact length (0.750" versus 0.700") and insulation height (0.500" versus 0.425"). The mating contact length is also longer (0.450" versus 0.400"). These dimensional variations must be evaluated against specific PCB layout and mating connector specifications to ensure mechanical compatibility in the target application.

Q: Do the substitute parts meet the same compliance standards?

A: Both Molex substitutes maintain UL94 V-0 flammability rating and Moisture Sensitivity Level 1 (Unlimited). The substitutes are ROHS3 compliant, which exceeds the RoHS compliance requirement. Both carry REACH Unaffected status and EAR99 ECCN classification, consistent with the original part.

Q: What is the difference in contact material between the original and substitute parts?

A: The TE Connectivity 5-644759-4 uses copper alloy contacts, while both Molex substitutes use brass contacts. Brass provides different electrical and corrosion resistance characteristics. Application-specific requirements regarding contact resistance and environmental exposure should be evaluated when selecting between these options.

Q: Which substitute part should be selected for applications requiring maximum corrosion resistance?

A: Molex 0026481245 with tin plating at 60.0µin (1.52µm) thickness provides enhanced corrosion resistance compared to Molex 0026482245 with gold plating at 20.0µin (0.51µm) thickness. Tin plating offers superior protection in industrial environments with moisture or chemical exposure.

Q: Are the operating temperature and voltage ratings specified for the Molex substitutes?

A: Operating temperature and voltage rating specifications are not provided in the Molex substitute part data. The original TE Connectivity part specifies -55°C ~ 105°C operating temperature and 600VAC voltage rating. Application requirements should be cross-referenced with complete Molex technical documentation to confirm suitability for specific operating conditions.