TE Connectivity 647476-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 647476-3 is a 3 Position Rectangular Plug Connector with IDC (Insulation Displacement Contact) termination, gold-plated contacts, and 18 AWG wire gauge rating. This connector is designed for free hanging in-line and right angle mounting applications with discrete or ribbon cable configurations.

The 647476-3 carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to ensure continued availability for maintenance, repair, and new design implementations where this connector specification remains functionally required.

Substiute Parts

647476-3

TE Connectivity AMP ConnectorsIn Stock: 1256647476-3 Datasheet

Current PartRFQ

3-647476-3

TE Connectivity AMP ConnectorsIn Stock: 21673-647476-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 647476-3 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Connector type (Plug)
• Number of positions (3)
• Contact type (Male Pin)
• Pitch specification (0.156" / 3.96mm)
• Wire gauge (18 AWG)
• Cable termination method (IDC)
• Contact finish and thickness (Gold, 15.0µin)

Mechanical Parameters:

• Mounting type (Free Hanging In-Line, Right Angle)
• Series designation (MTA-156)
• Number of rows (1)
• Closed end feature

Compliance Parameters:

• RoHS status
• REACH compliance status
• Moisture Sensitivity Level (MSL)

The substitute part 3-647476-3 maintains complete electrical and mechanical equivalence to the 647476-3 across all specified parameters. The primary distinction between these parts is product status and regulatory compliance posture.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Procurement:

The 3-647476-3 is the appropriate selection for new applications. This part maintains complete functional and mechanical equivalence to the 647476-3 while offering Active product status and RoHS Compliant certification. The 3-647476-3 also carries REACH Unaffected status, providing enhanced regulatory clarity for international applications.

For Maintenance and Repair of Existing Systems:

The 647476-3 remains functionally suitable for direct replacement in systems currently utilizing this connector. However, the 3-647476-3 provides superior long-term availability assurance due to its Active product status and higher inventory levels (2157 units versus 1160 units).

Regulatory Compliance Considerations:

Applications subject to RoHS requirements must utilize the 3-647476-3. The 647476-3 carries RoHS non-compliant status and is unsuitable for regulated environments. The 3-647476-3 satisfies RoHS Compliant requirements and REACH Unaffected status, supporting compliance with EU and international regulatory frameworks.

Frequently Asked Questions (FAQ)

Q: Are the 647476-3 and 3-647476-3 electrically interchangeable?

A: Yes. Both connectors maintain identical electrical specifications including 3-position configuration, 0.156" pitch, male pin contact type, 18 AWG wire gauge rating, gold contact finish at 15.0µin thickness, and IDC termination method.

Q: What is the mechanical compatibility between these parts?

A: Complete mechanical compatibility exists. Both connectors feature identical mounting types (Free Hanging In-Line and Right Angle), single-row configuration, closed-end design, and orange color. Both support discrete or ribbon cable termination.

Q: Why does the 3-647476-3 have a different part number prefix?

A: The "3-" prefix designation indicates the Active product status variant within the MTA-156 series. The base product number 647476 remains consistent across both variants, with the suffix "-3" specifying the 3-position configuration.

Q: What is the significance of the RoHS compliance difference?

A: The 647476-3 is RoHS non-compliant, while the 3-647476-3 is RoHS Compliant. For applications subject to RoHS regulations (EU Directive 2011/65/EU and equivalent international standards), the 3-647476-3 is the required selection. The 647476-3 is restricted to non-regulated applications or legacy system maintenance.

Q: How do packaging differences affect part selection?

A: The 647476-3 packaging is not specified, while the 3-647476-3 is supplied in Bulk packaging. For procurement planning, the 3-647476-3 offers defined bulk packaging suitable for production environments. Inventory availability is higher for the 3-647476-3 (2157 units) compared to the 647476-3 (1160 units).

Q: Can the 647476-3 be used in new product designs?

A: The 647476-3 carries Obsolete product status and is not recommended for new designs. The 3-647476-3 with Active status provides assured long-term availability and supply chain continuity for new product development.

Q: What does REACH Unaffected status mean for the 3-647476-3?

A: REACH Unaffected status indicates the 3-647476-3 is not subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulatory requirements. This contrasts with the 647476-3, which carries Vendor Undefined REACH status, creating regulatory uncertainty.

Q: Are there any performance differences between these connectors?

A: No performance differences exist. Both connectors maintain identical electrical performance, contact resistance characteristics, and mechanical durability specifications. The differences are limited to product lifecycle status and regulatory compliance posture.