TE Connectivity 1-643815-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-643815-2 is a 12-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, identification of active equivalent parts is necessary to support ongoing maintenance, repair, and new design requirements where this connector type is specified.

Substiute Parts

1-643815-2

TE Connectivity AMP ConnectorsIn Stock: 10171-643815-2 Datasheet

Current PartRFQ

4-643815-2

TE Connectivity AMP ConnectorsIn Stock: 12474-643815-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-643815-2 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Series: MTA-100
• Connector Type: Receptacle
• Number of Positions: 12
• Pitch: 0.100" (2.54mm)
• Contact Type: Female Socket
• Cable Termination: IDC
• Wire Gauge: 26 AWG
• Mounting Type: Free Hanging (In-Line), Right Angle
• Fastening Type: Locking Ramp
• Features: Closed End
• Contact Finish Thickness: 80.0µin (2.03µm)

The substitute part 4-643815-2 maintains full electrical and mechanical compatibility with the original 1-643815-2 across all specified parameters. The primary distinction is the contact finish composition (tin versus tin-lead) and the product status transition from obsolete to active.

Parameter Comparison

Engineering Selection Recommendations

The 4-643815-2 is the direct active equivalent for the obsolete 1-643815-2. Selection of the substitute part is based on the following engineering criteria:

Product Status: The 1-643815-2 is classified as obsolete, while the 4-643815-2 maintains active product status with current manufacturing support and availability.

Regulatory Compliance: The 4-643815-2 is ROHS3 compliant, whereas the 1-643815-2 is RoHS non-compliant. For applications subject to RoHS directives or environmental regulations, the 4-643815-2 is the appropriate selection.

Contact Finish: The 4-643815-2 features pure tin contact finish compared to the tin-lead finish of the 1-643815-2. Both finishes maintain identical contact finish thickness of 80.0µin (2.03µm), ensuring equivalent electrical performance and mechanical durability.

Electrical and Mechanical Compatibility: All electrical parameters, mechanical dimensions, pitch, termination method, and connector configuration are identical between the two parts, ensuring direct functional interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the 4-643815-2 be used as a direct replacement for the 1-643815-2 in existing designs?

A: Yes. The 4-643815-2 is electrically and mechanically equivalent to the 1-643815-2 across all specified parameters, including pitch, number of positions, contact type, termination method, and contact finish thickness. The parts are directly interchangeable.

Q: What is the difference between the tin-lead finish of the 1-643815-2 and the tin finish of the 4-643815-2?

A: Both finishes maintain the same contact finish thickness of 80.0µin (2.03µm). The primary difference is the composition: the 1-643815-2 uses tin-lead, while the 4-643815-2 uses pure tin. Both provide equivalent electrical conductivity and contact reliability for IDC termination applications.

Q: Why is the 1-643815-2 classified as obsolete?

A: The 1-643815-2 has been discontinued by TE Connectivity. The 4-643815-2 is the active replacement part that maintains full compatibility while offering current manufacturing support and RoHS3 compliance.

Q: Are there any packaging differences between the 1-643815-2 and the 4-643815-2?

A: The 1-643815-2 packaging information is not specified in the available data. The 4-643815-2 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Does the RoHS3 compliance of the 4-643815-2 affect its electrical performance compared to the 1-643815-2?

A: No. RoHS3 compliance is a regulatory and environmental designation related to restricted substance content. It does not alter the electrical performance, contact resistance, or mechanical properties of the connector. Both parts deliver identical electrical characteristics.

Q: What is the Moisture Sensitivity Level (MSL) for both parts?

A: Both the 1-643815-2 and 4-643815-2 have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can the 4-643815-2 be used with 26 AWG discrete or ribbon cable?

A: Yes. The 4-643815-2 is specified for both discrete and ribbon cable termination at 26 AWG, identical to the 1-643815-2.