TE Connectivity 647168-8 Rectangular Connector Header: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 647168-8 is a surface mount rectangular connector header designed for board-to-cable/wire applications. This component is a shrouded, single-row, 8-position header with 0.100" (2.54mm) pitch spacing, commonly used in general-purpose electronic assemblies. The part carries an obsolete product status, making identification of active equivalent components essential for ongoing production and maintenance applications. The substitute part 3-647168-8 provides a direct functional equivalent with active product status and identical electrical and mechanical specifications.

Substiute Parts

647168-8

TE Connectivity AMP ConnectorsIn Stock: 1152647168-8 Datasheet

Current PartRFQ

3-647168-8

TE Connectivity AMP ConnectorsIn Stock: 8743-647168-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 3-647168-8 qualifies as a direct equivalent based on the following critical parameters that determine substitution compatibility:

Electrical Parameters:

• Identical pitch spacing: 0.100" (2.54mm)
• Identical number of positions: 8
• Identical number of rows: 1
• Identical voltage rating: 250VAC
• Identical contact type: Male Pin
• Identical operating temperature range: -55°C ~ 105°C

Mechanical Parameters:

• Identical connector type: Header
• Identical mounting type: Surface Mount
• Identical shrouding configuration: Shrouded - 1 Wall
• Identical termination method: Solder
• Identical fastening type: Friction Lock
• Identical contact length - mating: 0.290" (7.37mm)
• Identical insulation height: 0.347" (8.81mm)
• Identical contact shape: Square

Material & Compliance Parameters:

• Identical insulation material: Polyamide (PA46), Nylon 4/6
• Identical contact material: Copper Alloy
• Identical material flammability rating: UL94 V-0
• Identical RoHS status: ROHS3 Compliant
• Identical moisture sensitivity level: 1 (Unlimited)
• Identical REACH status: REACH Unaffected

The primary distinction between the main part and substitute is product status (obsolete versus active) and contact finish on the post (Tin-Lead versus Tin), with no impact on functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-647168-8 is a direct functional equivalent to the obsolete 647168-8. Selection between these parts is determined by product availability and compliance requirements:

For New Designs and Production: Use part number 3-647168-8. This part maintains active product status with TE Connectivity, ensuring ongoing availability, technical support, and supply chain continuity. The part carries identical ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

For Legacy System Maintenance: The 647168-8 remains functionally compatible with existing assemblies. However, transition to 3-647168-8 is recommended for long-term supply security, as the original part is classified as obsolete.

Compliance Considerations: Both parts satisfy UL94 V-0 flammability requirements and maintain ROHS3 compliance. The moisture sensitivity level of 1 (Unlimited) indicates no special handling requirements for either part during storage or assembly.

Contact Finish Difference: The substitute part uses Tin post finish compared to Tin-Lead on the original part. This change reflects current RoHS compliance standards and does not affect electrical or mechanical performance in standard applications.

Frequently Asked Questions (FAQ)

Q: Can 3-647168-8 be used as a direct replacement for 647168-8 in existing designs?

A: Yes. The 3-647168-8 is a direct functional equivalent with identical electrical, mechanical, and material specifications. All critical parameters including pitch spacing (0.100"), position count (8), voltage rating (250VAC), operating temperature range (-55°C ~ 105°C), and mounting configuration are identical.

Q: What is the difference between the contact finish specifications?

A: The main part 647168-8 uses Tin-Lead post finish, while the substitute 3-647168-8 uses Tin post finish. This change reflects current RoHS3 compliance standards. Both finishes provide equivalent electrical performance and solderability in standard PCB assembly processes.

Q: Why is the original part 647168-8 listed as obsolete?

A: Obsolete status indicates that TE Connectivity has discontinued active production and support for this part number. The substitute 3-647168-8 provides the same functionality with active product status, ensuring continued availability and technical support.

Q: Are there any packaging differences between these parts?

A: The main part 647168-8 packaging is not specified in the available data. The substitute 3-647168-8 is supplied in bulk packaging. Both parts are identical in form, fit, and function.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both 647168-8 and 3-647168-8 are ROHS3 compliant and REACH unaffected. Both carry UL94 V-0 material flammability ratings. The moisture sensitivity level of 1 (Unlimited) for both parts indicates no special handling requirements.

Q: What is the mating pitch specification for these connectors?

A: Both parts feature a mating pitch of 0.100" (2.54mm), which is the standard spacing for MTA-100 series connectors. This pitch is compatible with standard 0.100" connector receptacles and cable assemblies.

Q: Can these parts be used in high-temperature applications?

A: Yes. Both parts are rated for operating temperatures from -55°C to 105°C, making them suitable for general-purpose industrial and commercial applications within this temperature range.

Q: What is the voltage rating for these connectors?

A: Both parts are rated for 250VAC, suitable for standard low-voltage signal and power distribution applications in general-purpose electronic equipment.

Q: Are these parts suitable for surface mount assembly?

A: Yes. Both parts are designed for surface mount (SMD) termination with solder attachment to PCB pads. The shrouded 1-wall configuration provides mechanical stability during assembly and in-service operation.