TE Connectivity 644489-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644489-2 is a rectangular connector header, right-angle configuration, with 2 positions at 0.100" (2.54mm) pitch. This through-hole, solder-terminated connector is designed for board-to-cable/wire applications with shrouded 4-wall construction and friction lock fastening. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design and procurement requirements.

Substiute Parts

644489-2

TE Connectivity AMP ConnectorsIn Stock: 1195644489-2 Datasheet

Current PartRFQ

2-644489-2

TE Connectivity AMP ConnectorsIn Stock: 27332-644489-2 Datasheet

DirectRFQ

S2B-XH-A-1

JST Sales America Inc.In Stock: 52492S2B-XH-A-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TE Connectivity 644489-2 is determined by the following critical parameters:

Direct Equivalent Category: Parts that maintain identical or functionally equivalent specifications across all critical dimensions and electrical characteristics.

Similar Substitute Category: Parts that provide functional compatibility within acceptable tolerance ranges but may differ in specific parameters such as pitch, operating temperature range, or contact material.

The substitution logic is based on:

• Connector pitch and position count: Determines physical mating compatibility
• Mounting configuration: Through-hole, right-angle orientation requirement
• Shrouding design: 4-wall shrouded construction for polarization and protection
• Electrical ratings: Voltage and current capacity for application requirements
• Operating temperature range: Environmental performance specifications
• Termination method: Solder termination for PCB assembly
• Contact material and finish: Electrical conductivity and corrosion resistance
• Compliance certifications: RoHS3 and flammability ratings

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Substitution: 2-644489-2

The TE Connectivity 2-644489-2 is a direct equivalent to the obsolete 644489-2. Both parts share identical specifications across all critical parameters: MTA-100 series, 2-position 0.100" (2.54mm) pitch, through-hole right-angle mounting, shrouded 4-wall construction, solder termination, and friction lock fastening. The 2-644489-2 maintains the same electrical ratings (250VAC), operating temperature range (-55°C ~ 105°C), contact materials (copper alloy with gold mating finish), and compliance certifications (ROHS3, UL94 V-0). The primary distinction is product status: 2-644489-2 is active with higher inventory availability (2644 pcs), whereas 644489-2 is obsolete. This part is suitable for direct replacement in all applications where the original part was specified.

Similar Substitute: S2B-XH-A-1

The JST Sales America S2B-XH-A-1 provides functional compatibility as a similar substitute. This part maintains the same connector type (header), contact type (male pin), position count (2), mounting configuration (through-hole right-angle), shrouding (4-wall), and compliance certifications (ROHS3, UL94 V-0). However, the S2B-XH-A-1 differs in the following parameters: pitch is 0.098" (2.50mm) versus 0.100" (2.54mm), operating temperature range is -25°C ~ 85°C versus -55°C ~ 105°C, contact material is brass versus copper alloy, mating contact finish is tin versus gold, insulation material is polyamide/nylon versus polyester, fastening type is detent lock versus friction lock, and termination includes press-fit option in addition to solder. The S2B-XH-A-1 is suitable for applications where the narrower operating temperature range and different pitch tolerance are acceptable, and where the application does not require the extended low-temperature performance of the original specification.

Frequently Asked Questions (FAQ)

Q: Can the 2-644489-2 be used as a direct replacement for the obsolete 644489-2?

A: Yes. The 2-644489-2 is a direct equivalent with identical specifications across all critical parameters including pitch, position count, mounting type, shrouding, electrical ratings, operating temperature range, and compliance certifications. The part is suitable for direct substitution in all applications.

Q: What are the key differences between the 644489-2 and the S2B-XH-A-1?

A: The primary differences are: connector pitch (0.100" versus 0.098"), operating temperature range (-55°C ~ 105°C versus -25°C ~ 85°C), contact material (copper alloy versus brass), mating contact finish (gold versus tin), insulation material (polyester versus polyamide/nylon), and fastening mechanism (friction lock versus detent lock). These differences may affect mechanical fit, thermal performance, and electrical characteristics in specific applications.

Q: Is the S2B-XH-A-1 compatible with existing PCB designs for the 644489-2?

A: Compatibility depends on application-specific requirements. The pitch difference of 0.002" (0.04mm) may result in mechanical fit issues with existing PCB footprints designed for 0.100" (2.54mm) spacing. The narrower operating temperature range (-25°C ~ 85°C) may not be suitable for applications requiring extended low-temperature performance. Verification of mechanical fit and thermal requirements is necessary before implementation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both the 2-644489-2 and S2B-XH-A-1 are ROHS3 compliant, matching the compliance status of the original 644489-2 part.

Q: What is the difference in packaging between the main part and substitutes?

A: The original 644489-2 is listed with unspecified packaging. The 2-644489-2 is supplied in bulk packaging. The S2B-XH-A-1 is also supplied in bulk packaging. Packaging differences may affect procurement quantities and handling procedures but do not affect component functionality.

Q: Can the 644489-2 and 2-644489-2 be used interchangeably in the same assembly?

A: Yes. The 644489-2 and 2-644489-2 are functionally identical and can be used interchangeably. The 2-644489-2 is the active production equivalent of the obsolete 644489-2.

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

A: All three parts (644489-2, 2-644489-2, and S2B-XH-A-1) have a moisture sensitivity level of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.