TE Connectivity 641655-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641655-2 is a 2-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 26 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as obsolete. Due to its obsolete product status and RoHS non-compliance, identifying equivalent substitute parts is necessary for ongoing design support, maintenance, and new production applications requiring RoHS-compliant alternatives.

Substiute Parts

641655-2

TE Connectivity AMP ConnectorsIn Stock: 862641655-2 Datasheet

Current PartRFQ

3-641655-2

TE Connectivity AMP ConnectorsIn Stock: 37023-641655-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 641655-2 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Series: MTA-100
• Connector Type: Receptacle
• Number of Positions: 2
• Pitch: 0.100" (2.54mm)
• Number of Rows: 1
• Cable Termination: IDC
• Wire Gauge: 26 AWG
• Mounting Type: Free Hanging (In-Line), Right Angle
• Fastening Type: Locking Ramp
• Contact Finish Thickness: 80.0µin (2.03µm)

Allowable Variations:

• Contact Finish: Tin-Lead to Tin (both provide equivalent electrical and mechanical performance within the MTA-100 series specification)
• RoHS Compliance: Non-compliant to ROHS3 Compliant (represents product evolution and regulatory alignment)

The substitute part 3-641655-2 maintains full electrical and mechanical compatibility while offering improved regulatory compliance and expanded inventory availability.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Product Replacement: The 3-641655-2 serves as the direct substitute for the 641655-2 in all applications requiring the MTA-100 2-position receptacle connector with IDC termination and 26 AWG wire gauge. Both parts are classified as obsolete; however, the 3-641655-2 offers ROHS3 compliance, making it suitable for applications subject to RoHS regulations.

For RoHS-Compliant Applications: Select the 3-641655-2 when regulatory compliance with ROHS3 standards is required. The tin contact finish of the 3-641655-2 provides equivalent electrical performance to the tin-lead finish of the 641655-2 within the MTA-100 series specification framework.

For Legacy System Maintenance: The 641655-2 remains applicable for legacy systems where RoHS compliance is not mandated. Both parts maintain identical mechanical and electrical characteristics across all critical parameters except contact finish composition and RoHS certification status.

Inventory Considerations: The 3-641655-2 maintains significantly higher inventory availability (3648 pcs) compared to the 641655-2 (806 pcs), supporting both immediate procurement and long-term supply chain planning.

Frequently Asked Questions (FAQ)

Q: Can the 3-641655-2 directly replace the 641655-2 in existing designs?

A: Yes. The 3-641655-2 is electrically and mechanically equivalent to the 641655-2 across all critical parameters including connector type, position count, pitch, termination method, wire gauge, and mounting configuration. The contact finish difference (tin versus tin-lead) does not affect functional compatibility within the MTA-100 series specification.

Q: What is the difference between the tin-lead finish of the 641655-2 and the tin finish of the 3-641655-2?

A: Both finishes provide equivalent electrical conductivity and mechanical performance within the MTA-100 series. The primary distinction is regulatory: the tin finish of the 3-641655-2 supports ROHS3 compliance, while the tin-lead finish of the 641655-2 does not. Contact finish thickness remains identical at 80.0µin (2.03µm) for both parts.

Q: Are there packaging differences between these parts?

A: The 641655-2 packaging specification is not provided in the technical data. The 3-641655-2 is supplied in bulk packaging. Confirm packaging requirements with your procurement specification before finalizing part selection.

Q: Why is the 3-641655-2 preferred for new designs?

A: The 3-641655-2 is preferred for new designs due to ROHS3 compliance, which aligns with current regulatory requirements in most markets. Additionally, higher inventory availability (3648 pcs versus 806 pcs) supports production scheduling and supply chain continuity.

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

A: Yes. Both the 641655-2 and 3-641655-2 support discrete or ribbon cable termination via IDC (Insulation Displacement Contact) method at 26 AWG wire gauge.

Q: What is the pitch specification, and why is it important for substitution?

A: Both parts feature a 0.100" (2.54mm) pitch, which defines the center-to-center spacing between the two contact positions. Pitch is a critical parameter for mechanical compatibility; substitution is only valid when pitch specifications are identical.

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

A: Both parts feature a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions. However, product status for both parts is listed as obsolete. Consult application-specific reliability requirements and consider long-term availability when selecting for high-reliability systems.