TE Connectivity 644462-9 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644462-9 is a 9-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 20 AWG discrete or ribbon cable. This connector features a tin-lead contact finish, closed-end design with polarizing key, and free-hanging in-line mounting configuration.

The 644462-9 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and field service requirements for systems utilizing this connector type.

Substiute Parts

644462-9

TE Connectivity AMP ConnectorsIn Stock: 964644462-9 Datasheet

Current PartRFQ

3-644462-9

TE Connectivity AMP ConnectorsIn Stock: 10033-644462-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 644462-9 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility Parameters:

• Connector type (Receptacle)
• Number of positions (9)
• Pitch spacing (0.156" / 3.96mm)
• Number of rows (1)
• Contact type (Female Socket)
• Mounting configuration (Free Hanging In-Line)
• Polarizing key presence

Electrical & Termination Parameters:

• Cable termination method (IDC)
• Wire gauge compatibility (20 AWG)
• Wire type support (Discrete or Ribbon Cable)
• Contact finish thickness (80.0µin / 2.03µm)

Environmental & Compliance Parameters:

• Moisture Sensitivity Level (MSL 1 - Unlimited)
• Series designation (MTA-156)

Substitute parts must maintain identical values across all mechanical and termination parameters. Variations in contact finish material (tin-lead versus tin) and product status (obsolete versus active) do not affect functional interchangeability when all other parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

The 3-644462-9 is a direct functional substitute for the obsolete 644462-9 connector. Both parts maintain identical mechanical, electrical, and termination specifications across all critical parameters that determine connector interchangeability.

Product Status Consideration: The 644462-9 is obsolete, while the 3-644462-9 is active. Selection of the active substitute part ensures continued availability for new production, field replacements, and system maintenance.

Compliance Consideration: The 3-644462-9 is RoHS compliant, whereas the 644462-9 is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the 3-644462-9 is the appropriate selection.

Contact Finish Consideration: The primary difference between these parts is the contact finish material. The 644462-9 features tin-lead plating, while the 3-644462-9 features tin plating. Both finishes provide equivalent contact resistance, durability, and electrical performance at the specified contact finish thickness of 80.0µin (2.03µm). The tin finish of the 3-644462-9 aligns with modern manufacturing standards and RoHS compliance requirements.

Packaging Consideration: The 3-644462-9 is supplied in bulk packaging, whereas the 644462-9 packaging specification is not defined. Bulk packaging is standard for active production components and supports efficient inventory management.

Frequently Asked Questions (FAQ)

Q: Can the 3-644462-9 be used as a direct replacement for the 644462-9 in existing designs?

A: Yes. The 3-644462-9 is functionally equivalent to the 644462-9 across all mechanical, electrical, and termination parameters. Both connectors are 9-position MTA-156 series receptacles with identical pitch, contact configuration, IDC termination method, and 20 AWG wire gauge support. Direct substitution is supported without design modification.

Q: What is the significance of the contact finish difference between tin-lead and tin?

A: Both tin-lead and tin contact finishes provide equivalent electrical performance and durability at the specified thickness of 80.0µin (2.03µm). The tin finish of the 3-644462-9 represents current manufacturing practice and is compatible with modern soldering and assembly processes. The contact finish material does not affect connector interchangeability or performance in IDC termination applications.

Q: Why is the 644462-9 classified as obsolete?

A: The 644462-9 is obsolete due to its tin-lead contact finish, which does not comply with RoHS regulations. The 3-644462-9 supersedes this part with an equivalent design utilizing RoHS-compliant tin plating. Obsolescence does not indicate functional deficiency but reflects regulatory and manufacturing evolution.

Q: Are there any compatibility issues when substituting the 3-644462-9 for the 644462-9?

A: No compatibility issues exist. Both connectors share identical specifications for connector type, position count, pitch, row configuration, contact type, mounting method, cable termination, wire gauge, and feature set. The connectors are mechanically and electrically interchangeable.

Q: What is the inventory status of these parts?

A: The 644462-9 has 864 pieces in stock as new original inventory. The 3-644462-9 has 895 pieces in stock as new original inventory. Both parts are available for immediate procurement.

Q: Does the bulk packaging of the 3-644462-9 affect its suitability as a substitute?

A: No. Bulk packaging is standard for active production components and does not affect the connector's functional performance or interchangeability. Bulk packaging supports efficient inventory management and cost optimization for production applications.

Q: Are both connectors suitable for discrete and ribbon cable applications?

A: Yes. Both the 644462-9 and 3-644462-9 support discrete or ribbon cable termination via IDC method at 20 AWG wire gauge. The connectors are equally suitable for either cable configuration.

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

A: Both connectors have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors do not require special moisture control during storage, handling, or assembly.