TE Connectivity 644563-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644563-8 is an 8-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is configured as a free-hanging, in-line or right-angle mounted component with locking ramp fastening. The part maintains active product status and is currently in stock with 1019 units available. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across connector specifications, allowing for component interchangeability in applications where specific finish or compliance requirements differ.

Substiute Parts

644563-8

TE Connectivity AMP ConnectorsIn Stock: 1098644563-8 Datasheet

Current PartRFQ

3-644563-8

TE Connectivity AMP ConnectorsIn Stock: 22333-644563-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 644563-8 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must remain identical for direct substitution:

Critical Parameters (Must Match Exactly):

• Connector type: Receptacle
• Number of positions: 8
• Pitch spacing: 0.100" (2.54mm)
• Contact type: Female socket
• Cable termination: IDC (Insulation Displacement Contact)
• Wire gauge: 24 AWG
• Mounting configuration: Free hanging (in-line) and right-angle options
• Fastening mechanism: Locking ramp
• Series designation: MTA-100
• Number of rows: 1

Application-Dependent Parameters (May Vary):

• Contact finish material (tin-lead versus tin)
• Contact finish thickness (80.0µin specification maintained)
• RoHS compliance status
• Packaging configuration (bulk versus standard)

The identified substitute part 3-644563-8 maintains all critical parameters while differing in contact finish composition and RoHS compliance classification. Both parts are manufactured by TE Connectivity AMP Connectors and share the same base product number 644563, confirming functional equivalence within the MTA-100 connector family.

Parameter Comparison

Engineering Selection Recommendations

Both the 644563-8 and 3-644563-8 maintain identical electrical and mechanical specifications across all critical connector parameters. Selection between these parts is determined by regulatory and application requirements rather than functional performance differences.

644563-8 Selection Criteria:

• Applications where tin-lead contact finish is specified or required
• Designs not subject to RoHS compliance mandates
• Legacy system compatibility where tin-lead finish is established
• Product status: Active with 1019 units in stock

3-644563-8 Selection Criteria:

• Applications requiring RoHS compliance certification
• New designs targeting regulatory compliance with tin contact finish
• Bulk packaging requirements for high-volume production
• Product status: Active with 2128 units in stock

Both parts are manufactured by TE Connectivity AMP Connectors and share the MTA-100 series designation. The primary distinction is the contact finish material (tin-lead versus tin) and corresponding RoHS compliance status. The substitute part 3-644563-8 offers greater inventory availability and RoHS compliance, while the main part 644563-8 maintains the original tin-lead specification. Selection should be based on specific application requirements, regulatory obligations, and design specifications.

Frequently Asked Questions (FAQ)

Q: Can 3-644563-8 be used as a direct replacement for 644563-8 in existing designs?

A: Yes, the 3-644563-8 is functionally equivalent to 644563-8 across all critical electrical and mechanical parameters. Both connectors share identical pitch (0.100"), position count (8), contact type (female socket), termination method (IDC), wire gauge (24 AWG), mounting configuration, and fastening mechanism. The primary difference is the contact finish material: 644563-8 uses tin-lead while 3-644563-8 uses tin. This substitution is valid when the application does not require the specific tin-lead finish specification.

Q: What is the difference between tin-lead and tin contact finishes in these connectors?

A: The 644563-8 features a tin-lead contact finish, while the 3-644563-8 features a tin contact finish. Both maintain the same contact finish thickness of 80.0µin (2.03µm). The tin finish in the 3-644563-8 provides RoHS compliance, whereas the tin-lead finish in the 644563-8 is not subject to RoHS classification. The choice between these finishes depends on regulatory requirements and application specifications.

Q: Are there packaging differences between these two parts?

A: Yes, packaging differs between the parts. The 644563-8 is supplied in standard packaging, while the 3-644563-8 is supplied in bulk packaging. This distinction may affect procurement, handling, and inventory management but does not impact connector functionality or electrical performance.

Q: What does IDC termination mean for these connectors?

A: IDC (Insulation Displacement Contact) termination is a cable connection method where the connector contacts pierce through the insulation of the wire without requiring prior stripping. Both the 644563-8 and 3-644563-8 support IDC termination with 24 AWG discrete or ribbon cable, allowing for efficient and reliable cable assembly without manual wire preparation.

Q: Can these connectors be mounted in both in-line and right-angle configurations?

A: Yes, both the 644563-8 and 3-644563-8 support free-hanging mounting in both in-line and right-angle configurations. This flexibility allows for diverse PCB layout and cable routing requirements within the same connector family.

Q: What is the locking ramp fastening mechanism?

A: The locking ramp is the fastening mechanism used in both connectors to secure the mated connector pair. This mechanism provides positive locking and prevents accidental disconnection during operation.

Q: Are both parts currently available for purchase?

A: Yes, both parts are active products. The 644563-8 has 1019 units in stock, while the 3-644563-8 has 2128 units in stock, providing availability for immediate procurement.

Q: What is the Moisture Sensitivity Level (MSL) for these connectors?

A: Both the 644563-8 and 3-644563-8 have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or use.

Q: Which part should be selected for new designs?

A: For new designs, the 3-644563-8 is recommended when RoHS compliance is required or preferred. The 644563-8 should be selected when tin-lead contact finish is specifically required by design specifications or when compatibility with existing tin-lead systems is necessary.