TE Connectivity AMP Connectors 644861-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644861-8 is a rectangular connector header designed for through-hole mounting applications. This connector features 8 vertical positions with 0.100" (2.54mm) pitch spacing, shrouded 4-wall construction, and solder termination. The part operates across a temperature range of -55°C to 105°C and is rated for 250VAC applications.

The 644861-8 carries an obsolete product status, making identification of active equivalent parts essential for ongoing procurement and design continuity. Direct substitutes within the MTA-100 series provide functionally compatible alternatives with improved availability and compliance characteristics.

Substiute Parts

644861-8

TE Connectivity AMP ConnectorsIn Stock: 1224644861-8 Datasheet

Current PartRFQ

2-644861-8

TE Connectivity AMP ConnectorsIn Stock: 69822-644861-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 644861-8 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part 2-644861-8 maintains identical specifications for connector type, contact configuration, pitch spacing, mounting methodology, shrouding design, and termination approach.

The following parameters establish substitution validity:

• Connector Type: Header (identical)
• Contact Type: Male Pin (identical)
• Number of Positions: 8 (identical)
• Pitch - Mating: 0.100" (2.54mm) (identical)
• Mounting Type: Through Hole (identical)
• Shrouding: Shrouded - 4 Wall (identical)
• Termination: Solder (identical)
• Operating Temperature Range: -55°C ~ 105°C (identical)
• Voltage Rating: 250VAC (identical)
• Material Flammability Rating: UL94 V-0 (identical)
• Series: MTA-100 (identical)

The substitute part differs only in packaging format (Bulk versus standard packaging), product status (Active versus Obsolete), contact finish composition (Tin versus Tin-Lead), and regulatory compliance status (ROHS3 Compliant and REACH Unaffected versus RoHS non-compliant).

Parameter Comparison

Engineering Selection Recommendations

The 2-644861-8 serves as the direct active substitute for the obsolete 644861-8. Both parts maintain identical electrical and mechanical specifications across all critical parameters including connector type, contact configuration, pitch spacing, mounting methodology, and operating characteristics.

The primary distinction between these parts is product status and regulatory compliance. The 644861-8 is classified as obsolete with RoHS non-compliant status and vendor-undefined REACH status. The 2-644861-8 is an active product with ROHS3 compliance and REACH Unaffected designation, ensuring alignment with current regulatory requirements.

Contact finish composition differs between the parts: the 644861-8 features Tin-Lead plating while the 2-644861-8 uses Tin plating. Both finishes are applied to mating and post contacts and maintain equivalent electrical and mechanical performance within the specified operating parameters.

For new designs and ongoing procurement, the 2-644861-8 is the appropriate selection due to active product status and regulatory compliance. For legacy system maintenance where the original 644861-8 specification is required, the 2-644861-8 provides functional equivalence with enhanced compliance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 2-644861-8 directly replace the 644861-8 in existing applications?

A: Yes. The 2-644861-8 maintains identical electrical and mechanical specifications across all critical parameters. Both parts feature 8 positions, 0.100" (2.54mm) pitch spacing, through-hole solder termination, shrouded 4-wall construction, and identical operating temperature and voltage ratings. The parts are mechanically and electrically interchangeable.

Q: What is the significance of the contact finish difference between Tin-Lead and Tin?

A: The 644861-8 uses Tin-Lead plating while the 2-644861-8 uses Tin plating. Both finishes provide equivalent electrical conductivity and mechanical performance within the specified operating parameters of -55°C to 105°C and 250VAC rating. The Tin finish in the 2-644861-8 aligns with current RoHS3 compliance requirements.

Q: Why is the 644861-8 listed as obsolete?

A: The 644861-8 carries an obsolete product status designation. The 2-644861-8 is the active equivalent part within the MTA-100 series and is the recommended selection for new procurement and design applications.

Q: Are there packaging differences between these parts?

A: The 644861-8 is supplied in standard packaging while the 2-644861-8 is supplied in Bulk packaging. Both parts are identical in form, fit, and function. Packaging format selection depends on procurement volume and inventory management requirements.

Q: What is the RoHS compliance status of these parts?

A: The 644861-8 is RoHS non-compliant. The 2-644861-8 is ROHS3 compliant. For applications subject to RoHS regulations, the 2-644861-8 is the appropriate selection.

Q: Are both parts suitable for general-purpose applications?

A: Yes. Both the 644861-8 and 2-644861-8 are rated for general-purpose applications with identical operating temperature ranges of -55°C to 105°C and voltage ratings of 250VAC. Both parts maintain UL94 V-0 material flammability ratings and unlimited moisture sensitivity levels.

Q: What is the current availability status of these parts?

A: The 644861-8 is obsolete with 1153 pieces in stock. The 2-644861-8 is an active product with 6938 pieces in stock, providing superior availability for ongoing procurement requirements.