TE Connectivity 640440-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640440-8 is an 8-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features tin-lead contact finish, a closed-end design, and locking ramp fastening for secure mating.

The 640440-8 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and legacy system requirements where this connector type remains in service.

Substiute Parts

640440-8

TE Connectivity AMP ConnectorsIn Stock: 777640440-8 Datasheet

Current PartRFQ

3-640440-8

TE Connectivity AMP ConnectorsIn Stock: 495863-640440-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640440-8 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Receptacle)
• Number of positions (8)
• Contact type (Female Socket)
• Pitch (0.100" / 2.54mm)
• Number of rows (1)
• Cable termination method (IDC)
• Wire gauge (22 AWG)

Mechanical Compatibility Parameters:

• Mounting type (Free Hanging In-Line, Right Angle)
• Fastening type (Locking Ramp)
• Features (Closed End)
• Series designation (MTA-100)

Physical Parameters:

• Contact finish thickness (80.0µin / 2.03µm)
• Color (Red)

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

Parameter Comparison

Engineering Selection Recommendations

The 3-640440-8 is a direct functional equivalent to the 640440-8. Both connectors share identical electrical and mechanical specifications within the MTA-100 series, including connector type, position count, pitch, termination method, wire gauge, and mounting configuration.

The primary distinction between these parts is product status and regulatory compliance. The 640440-8 is obsolete and carries no RoHS designation. The 3-640440-8 is an active product with ROHS3 compliance, making it the appropriate selection for new designs and systems requiring current regulatory adherence.

The contact finish differs between the two parts: the 640440-8 uses tin-lead, while the 3-640440-8 uses tin. Both finishes maintain identical contact finish thickness (80.0µin / 2.03µm) and are functionally compatible for IDC termination with 22 AWG cable.

For legacy system support where the 640440-8 is specified, the 3-640440-8 provides direct substitution without modification to mating connectors, cable assemblies, or system integration.

Frequently Asked Questions (FAQ)

Q: Can the 3-640440-8 directly replace the 640440-8 in existing applications?

A: Yes. The 3-640440-8 is electrically and mechanically equivalent to the 640440-8. Both connectors are MTA-100 series 8-position receptacles with identical pitch (0.100"), IDC termination, 22 AWG wire gauge, and locking ramp fastening. Direct substitution is supported without modification to mating components or cable assemblies.

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

A: The 640440-8 features tin-lead contact finish, while the 3-640440-8 features tin contact finish. Both finishes are applied at identical thickness (80.0µin / 2.03µm). The contact finish material does not affect IDC termination performance or electrical compatibility with mating connectors.

Q: Why is the 640440-8 listed as obsolete?

A: The 640440-8 is no longer in active production. The 3-640440-8 is the current active equivalent from TE Connectivity AMP Connectors, offering the same functional specifications with current regulatory compliance (ROHS3).

Q: Are there packaging differences between these parts?

A: The 640440-8 packaging is not specified in available documentation. The 3-640440-8 is supplied in bulk packaging. Packaging format does not affect connector performance or interchangeability.

Q: What does MSL 1 (Unlimited) mean for these connectors?

A: Moisture Sensitivity Level 1 indicates the lowest moisture sensitivity classification. These connectors require no special moisture control during storage, handling, or assembly, providing maximum flexibility in manufacturing and field deployment environments.

Q: Can these connectors be used with both discrete and ribbon cable?

A: Yes. Both the 640440-8 and 3-640440-8 support IDC termination with discrete or ribbon cable at 22 AWG wire gauge. The IDC termination method accommodates both cable types without modification.

Q: What is the significance of the closed-end feature?

A: The closed-end design prevents accidental contact with internal connector elements and provides strain relief for the cable termination area. This feature is identical on both the 640440-8 and 3-640440-8.