TE Connectivity AMP Connectors 644487-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644487-2 is a rectangular connector header classified as a shrouded 4-wall through-hole connector with 2 positions at 2.54mm pitch. This component is designed for board-to-cable/wire applications requiring solder termination and friction lock fastening. The part is currently listed as obsolete, necessitating identification of equivalent and substitute components for ongoing design and procurement requirements. Active alternatives are available from TE Connectivity and other manufacturers that maintain functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

644487-2

TE Connectivity AMP ConnectorsIn Stock: 973644487-2 Datasheet

Current PartRFQ

2-644487-2

TE Connectivity AMP ConnectorsIn Stock: 28122-644487-2 Datasheet

DirectRFQ

1881558

Phoenix ContactIn Stock: 10421881558 Datasheet

SimilarRFQ

OSTOQ02B150

On Shore Technology Inc.In Stock: 951OSTOQ02B150 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 644487-2 is determined by strict equivalence across the following critical parameters: connector type (header), contact type (male pin), number of positions (2), pitch specification (0.100" / 2.54mm), shrouding configuration (4-wall), mounting method (through hole), and termination type (solder). All substitute parts must maintain compatibility with these core electrical and mechanical specifications.

The substitute parts are grouped into two categories:

Direct Equivalent (Same Manufacturer): Part 2-644487-2 from TE Connectivity AMP Connectors is a direct functional equivalent with identical specifications. This part differs only in product status (active versus obsolete) and packaging configuration (bulk versus original packaging).

Functional Alternatives (Different Manufacturers): Parts 1881558 (Phoenix Contact) and OSTOQ02B150 (On Shore Technology Inc.) are terminal block headers with 2 positions and similar shrouded configurations. These parts operate at comparable pitch specifications (0.098" / 2.50mm) and maintain through-hole solder termination. Functional compatibility is established through matching connector type, position count, shrouding, mounting method, and termination approach, though pitch specifications differ marginally.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 2-644487-2

The part 2-644487-2 from TE Connectivity AMP Connectors is the recommended direct substitute for the obsolete 644487-2. This part maintains identical electrical and mechanical specifications, including pitch (0.100" / 2.54mm), connector configuration, shrouding, mounting method, and termination type. The primary distinction is product status (active versus obsolete) and packaging format (bulk). This part is ROHS3 compliant, carries REACH Unaffected status, and maintains the same operating temperature range and flammability rating. Current inventory of 2,769 pieces supports immediate procurement.

Secondary Selection: 1881558 (Phoenix Contact)

The Phoenix Contact 1881558 terminal block header serves as a functional alternative when direct TE Connectivity equivalents are unavailable. This part maintains 2-position configuration, shrouded 4-side design, through-hole mounting, and solder termination. The pitch specification of 0.098" (2.50mm) represents a 0.002" (0.04mm) deviation from the original 2.54mm specification. This part is ROHS3 compliant, REACH unaffected, and carries UL94 V-0 flammability rating. Voltage rating of 320V (IEC) exceeds the original 250VAC specification. Current inventory of 983 pieces is available.

Tertiary Selection: OSTOQ02B150 (On Shore Technology Inc.)

The On Shore Technology Inc. OSTOQ02B150 terminal block header provides an alternative 2-position shrouded header with solder termination. This part operates at 0.098" (2.50mm) pitch and maintains the 4-side shrouded configuration. Operating temperature range extends to -40°C ~ 115°C, exceeding the original -55°C ~ 105°C specification. ROHS3 compliance and REACH unaffected status are confirmed. Material flammability rating is not specified for this part. Current inventory of 900 pieces is available.

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, supporting deployment in standard manufacturing and storage environments.

Frequently Asked Questions (FAQ)

Q: Can 2-644487-2 be used as a direct replacement for 644487-2?

A: Yes. The 2-644487-2 is functionally identical to 644487-2 across all critical electrical and mechanical parameters. Both parts feature 2 positions, 0.100" (2.54mm) pitch, shrouded 4-wall configuration, through-hole mounting, and solder termination. The primary difference is product status (active versus obsolete) and packaging format. No design modifications are required.

Q: What is the pitch difference between 644487-2 and the Phoenix Contact 1881558?

A: The original 644487-2 operates at 0.100" (2.54mm) pitch, while the Phoenix Contact 1881558 operates at 0.098" (2.50mm) pitch. This represents a 0.002" (0.04mm) deviation. Compatibility depends on the mating connector or cable assembly specifications. If the mating component is designed for 2.54mm pitch, the 2.50mm pitch alternative may not provide reliable mating.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (2-644487-2, 1881558, and OSTOQ02B150) are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, supporting standard manufacturing and storage environments.

Q: What is the voltage rating difference between the main part and substitutes?

A: The original 644487-2 is rated for 250VAC. The Phoenix Contact 1881558 is rated for 320V (IEC) or 125V (UL). The On Shore Technology OSTOQ02B150 is rated for 125V (UL). For applications requiring 250VAC operation, the direct equivalent 2-644487-2 maintains the original voltage specification.

Q: Does the contact finish differ between the main part and substitutes?

A: Yes. The original 644487-2 features gold-plated mating contacts with tin-lead post finish. The direct equivalent 2-644487-2 uses gold-plated mating contacts with tin post finish. The Phoenix Contact 1881558 and On Shore Technology OSTOQ02B150 both feature tin-plated mating contacts. Contact finish selection affects corrosion resistance and mating force characteristics.

Q: What is the operating temperature range for each part?

A: The original 644487-2 and direct equivalent 2-644487-2 operate from -55°C to 105°C. The Phoenix Contact 1881558 does not specify an operating temperature range. The On Shore Technology OSTOQ02B150 operates from -40°C to 115°C, providing extended high-temperature capability but reduced low-temperature performance compared to the original specification.

Q: Are there packaging differences between 644487-2 and 2-644487-2?

A: Yes. The original 644487-2 is listed with unspecified packaging, while 2-644487-2 is supplied in bulk packaging. Both parts are functionally identical. Bulk packaging typically provides cost advantages for high-volume procurement but may require internal repackaging for component-level inventory management.

Q: Can the On Shore Technology OSTOQ02B150 be used in applications requiring UL94 V-0 flammability rating?

A: The On Shore Technology OSTOQ02B150 does not specify a material flammability rating in the provided data. If UL94 V-0 compliance is a design requirement, the direct equivalent 2-644487-2 or Phoenix Contact 1881558 are recommended, as both explicitly carry UL94 V-0 certification.

Q: What inventory levels are available for each substitute part?

A: The direct equivalent 2-644487-2 has 2,769 pieces in stock. The Phoenix Contact 1881558 has 983 pieces available. The On Shore Technology OSTOQ02B150 has 900 pieces in inventory. All parts are listed as new original stock.