TE Connectivity 647106-2 Rectangular Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 647106-2 is a surface mount rectangular connector header designed for board-to-cable/wire applications. This connector features a 2-position configuration with 0.100" (2.54mm) pitch spacing, operating across a temperature range of -55°C to 105°C with a 250VAC voltage rating. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design and procurement requirements. The MTA-100 series connector utilizes shrouded single-wall construction with tin-lead plated copper alloy contacts and polyamide insulation rated UL94 V-0.

Substiute Parts

647106-2

TE Connectivity AMP ConnectorsIn Stock: 886647106-2 Datasheet

Current PartRFQ

3-647106-2

TE Connectivity AMP ConnectorsIn Stock: 25643-647106-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete TE Connectivity 647106-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (2)
• Pitch spacing (0.100" / 2.54mm)
• Voltage rating (250VAC)
• Operating temperature range (-55°C ~ 105°C)

Mechanical Compatibility Parameters:

• Mounting type (Surface Mount)
• Termination method (Solder)
• Shrouding configuration (Shrouded - 1 Wall)
• Number of rows (1)
• Contact material (Copper Alloy)
• Insulation material (Polyamide PA46, Nylon 4/6)

Regulatory Compliance Parameters:

• Flammability rating (UL94 V-0)
• Series designation (MTA-100)

The substitute part 3-647106-2 maintains full equivalence across all critical parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-647106-2 serves as the direct functional equivalent and recommended substitute for the obsolete 647106-2 connector. Both parts maintain identical electrical and mechanical specifications across all critical parameters including connector type, contact configuration, pitch spacing, mounting method, and operating characteristics.

The primary distinction between these parts is product status and regulatory compliance. The 647106-2 is classified as obsolete with RoHS non-compliant status, whereas the 3-647106-2 maintains active product status with ROHS3 compliance. This compliance improvement aligns with current regulatory requirements for electronic component procurement and manufacturing.

The contact finish on the post differs between the two parts: the obsolete version features tin-lead plating while the active substitute uses tin plating. This difference does not affect functional compatibility or performance within the specified operating parameters.

For new designs and ongoing procurement requirements, the 3-647106-2 is the appropriate selection. For legacy system maintenance where the original 647106-2 is required, the 3-647106-2 provides full functional interchangeability with enhanced regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Are the 647106-2 and 3-647106-2 connectors mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including mounting type (surface mount), shrouding configuration (shrouded single-wall), contact length (0.290"), insulation height (0.347"), and overall form factor. They are directly interchangeable in board-level applications.

Q: What is the difference in contact finish between these two parts?

A: The obsolete 647106-2 features tin-lead plating on both mating and post contacts. The active substitute 3-647106-2 maintains tin-lead plating on mating contacts but uses tin plating on post contacts. Both finishes provide equivalent electrical performance and corrosion resistance within the specified operating environment.

Q: Can the 3-647106-2 be used as a direct replacement in existing assemblies designed for the 647106-2?

A: Yes. The 3-647106-2 provides full functional equivalence across all electrical and mechanical parameters. It is suitable for direct substitution in existing designs without circuit or layout modifications.

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

A: The 647106-2 is RoHS non-compliant, while the 3-647106-2 is ROHS3 compliant. For new product designs and procurement in regulated markets, ROHS3 compliance is required. The 3-647106-2 meets current regulatory standards for hazardous substance restrictions.

Q: Are there any packaging differences between these parts?

A: The 647106-2 is supplied in unspecified packaging, while the 3-647106-2 is supplied in bulk packaging. Both configurations contain identical connector components. Packaging selection should be based on procurement volume and inventory management requirements.

Q: What is the current rating for these connectors?

A: The current rating varies by wire gauge. The connector specifications do not define a fixed amperage rating; instead, current capacity is determined by the gauge of the wire or cable connected to the solder terminals. Refer to wire gauge specifications and application requirements to determine appropriate current handling.

Q: Are these connectors suitable for high-temperature applications?

A: Yes. Both connectors operate across the temperature range of -55°C to 105°C, making them suitable for industrial and automotive applications requiring extended thermal performance. The polyamide insulation material and UL94 V-0 flammability rating support operation within this range.

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

A: Both parts are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors do not require special moisture control during storage, handling, or assembly.