TE Connectivity AMP Connectors 1-644861-0 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-644861-0 is a rectangular connector header designed for through-hole mounting applications. This connector features a 10-position, single-row configuration with 0.100" (2.54mm) pitch spacing, suitable for board-to-cable and board-to-wire interconnections. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure component availability for new production and field service applications.

Substiute Parts

1-644861-0

TE Connectivity AMP ConnectorsIn Stock: 8731-644861-0 Datasheet

Current PartRFQ

3-644861-0

TE Connectivity AMP ConnectorsIn Stock: 183643-644861-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-644861-0 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Pitch spacing: 0.100" (2.54mm)
• Number of positions: 10
• Contact type: Male Pin
• Voltage rating: 250VAC
• Operating temperature range: -55°C ~ 105°C

Mechanical Parameters:

• Connector type: Header
• Mounting type: Through Hole
• Shrouding configuration: Shrouded - 4 Wall
• Contact shape: Square
• Insulation material: Polyester
• Insulation color: Black

Material & Compliance Parameters:

• Material flammability rating: UL94 V-0
• Contact material: Copper Alloy
• Termination method: Solder

The substitute part 3-644861-0 maintains full equivalence across all critical electrical and mechanical parameters. The primary distinction is the contact finish specification and product status, with the substitute offering active availability and improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 3-644861-0 is the direct equivalent substitute for the obsolete 1-644861-0. Both parts maintain identical electrical and mechanical specifications within the MTA-100 series, ensuring functional interchangeability in board-to-cable and board-to-wire applications.

Key Selection Factors:

Product Status: The 1-644861-0 is classified as obsolete with limited inventory availability (777 pieces). The 3-644861-0 is active with substantially higher inventory (18,323 pieces), ensuring reliable procurement for current and future production requirements.

Compliance Status: The 3-644861-0 offers superior compliance positioning. It is ROHS3 compliant and REACH unaffected, compared to the non-compliant status of the 1-644861-0. This distinction is critical for applications subject to environmental regulations and supply chain compliance requirements.

Contact Finish Specification: The 1-644861-0 features Tin-Lead contact finish, while the 3-644861-0 uses Tin finish. Both finishes are compatible with solder termination processes and maintain equivalent electrical performance across the specified operating temperature range of -55°C to 105°C.

Electrical Performance: Both parts deliver identical voltage rating (250VAC), current capacity (varies by wire gauge), and thermal performance. The UL94 V-0 flammability rating is maintained across both variants.

For new designs, field service replacements, and production continuity, the 3-644861-0 is the appropriate selection due to active product status, improved compliance certifications, and assured component availability.

Frequently Asked Questions (FAQ)

Q: Are the 1-644861-0 and 3-644861-0 electrically interchangeable?

A: Yes. Both parts are electrically equivalent. They share identical pitch spacing (0.100"/2.54mm), position count (10), contact type (male pin), voltage rating (250VAC), and operating temperature range (-55°C to 105°C). Electrical performance is functionally identical.

Q: What is the difference between Tin-Lead and Tin contact finishes?

A: The 1-644861-0 uses Tin-Lead finish while the 3-644861-0 uses Tin finish. Both finishes are compatible with solder termination and provide equivalent electrical conductivity and corrosion resistance across the specified operating temperature range. The Tin finish of the 3-644861-0 aligns with modern lead-free manufacturing standards.

Q: Why is the 3-644861-0 marked as ROHS3 compliant while the 1-644861-0 is not?

A: The 3-644861-0 incorporates materials and manufacturing processes that comply with RoHS3 (Restriction of Hazardous Substances Directive 3) requirements, which restrict the use of lead and other hazardous substances. The 1-644861-0, with its Tin-Lead contact finish, does not meet these restrictions. For applications requiring environmental compliance, the 3-644861-0 is the appropriate selection.

Q: Can I use the 3-644861-0 as a direct replacement in existing designs using the 1-644861-0?

A: Yes. The 3-644861-0 is a direct mechanical and electrical substitute. It maintains identical connector geometry, pitch spacing, mounting configuration, and electrical specifications. No design modifications are required for substitution.

Q: What is the packaging difference between these parts?

A: The 1-644861-0 packaging specification is not defined in the available data. The 3-644861-0 is supplied in bulk packaging. For specific packaging requirements, consult the respective product datasheets or contact the manufacturer directly.

Q: Are both parts suitable for the same applications?

A: Yes. Both parts are rated for general-purpose applications in board-to-cable and board-to-wire interconnections. The identical shrouding configuration (shrouded 4-wall), mounting type (through-hole), and termination method (solder) ensure compatibility across equivalent application profiles.

Q: What is the inventory status for each part?

A: The 1-644861-0 has 777 pieces in stock with obsolete product status. The 3-644861-0 has 18,323 pieces in stock with active product status. For procurement planning, the 3-644861-0 offers superior availability and long-term supply assurance.

Q: Do both parts have the same moisture sensitivity level?

A: Yes. Both parts are rated at Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements. Storage and handling procedures are identical for both variants.