TE Connectivity 640605-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640605-8 is an 8-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 tin-lead contact finish and free-hanging in-line mounting configuration.

The 640605-8 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this connector type. Active production alternatives within the same series provide functional compatibility while offering current product status and improved compliance certifications.

Substiute Parts

640605-8

TE Connectivity AMP ConnectorsIn Stock: 911640605-8 Datasheet

Current PartRFQ

3-640605-8

TE Connectivity AMP ConnectorsIn Stock: 8273-640605-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640605-8 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (8)
• Pitch spacing (0.156" / 3.96mm)
• Number of rows (1)
• Series designation (MTA-156)
• Cable termination method (IDC)
• Wire gauge compatibility (20 AWG)
• Wire type support (Discrete or Ribbon Cable)

Mechanical Parameters:

• Mounting type (Free Hanging In-Line)
• Contact finish thickness (80.0µin / 2.03µm)
• Feed-through feature presence
• Housing color (Yellow)

Environmental Parameters:

• Moisture Sensitivity Level (1 - Unlimited)

The substitute part 3-640605-8 maintains complete equivalence across all electrical, mechanical, and environmental parameters. The primary distinction is the contact finish material (tin versus tin-lead) and product status transition from obsolete to active.

Parameter Comparison

Engineering Selection Recommendations

The 3-640605-8 serves as the direct active substitute for the obsolete 640605-8. Both connectors maintain identical electrical and mechanical specifications within the MTA-156 series, ensuring functional interchangeability in applications requiring 8-position IDC receptacle connectors with 20 AWG wire termination.

Product Status Consideration: The 640605-8 is classified as obsolete, limiting availability for new procurement. The 3-640605-8 is active production status with confirmed inventory availability (756 pieces in stock), supporting both replacement and new design applications.

Compliance Consideration: The 3-640605-8 achieves RoHS compliance through tin contact finish, whereas the 640605-8 utilizes tin-lead finish and is RoHS non-compliant. For applications subject to RoHS regulatory requirements or environmental compliance mandates, the 3-640605-8 is the appropriate selection.

Contact Finish Distinction: The transition from tin-lead to tin contact finish represents the primary material change. Both finishes maintain the specified 80.0µin (2.03µm) thickness and deliver equivalent electrical performance and contact reliability for IDC termination applications.

Frequently Asked Questions (FAQ)

Q: Are the 640605-8 and 3-640605-8 electrically interchangeable?

A: Yes. Both connectors are 8-position receptacles within the MTA-156 series with identical pitch (0.156"), contact type (female socket), and IDC termination for 20 AWG wire. Electrical performance and contact specifications are equivalent.

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

A: The 640605-8 features tin-lead contact finish, while the 3-640605-8 uses tin finish. Both maintain 80.0µin (2.03µm) thickness. The tin finish of the 3-640605-8 enables RoHS compliance, whereas the tin-lead finish of the 640605-8 does not meet RoHS requirements.

Q: Can I use the 3-640605-8 in place of the 640605-8 in existing assemblies?

A: Yes. The 3-640605-8 is mechanically and electrically compatible with the 640605-8. Both connectors feature identical mounting type (free hanging in-line), housing color (yellow), and feed-through configuration.

Q: Why is the 640605-8 listed as obsolete?

A: The 640605-8 is no longer in active production. The 3-640605-8 represents the current production equivalent within the MTA-156 series, offering improved compliance status and ongoing availability.

Q: What is the packaging difference between these parts?

A: The 640605-8 packaging is not specified in available documentation. The 3-640605-8 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

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

A: Yes. Both the 640605-8 and 3-640605-8 support discrete or ribbon cable wire types with 20 AWG gauge using IDC termination method.

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

A: Both connectors are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.