TE Connectivity AMP Connectors 647143-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 647143-4 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical 4-position configuration with 0.156" (3.96mm) pitch spacing, suitable for board-to-cable/wire connections in general purpose and industrial applications. The part operates across a temperature range of -55°C to 105°C with a 600VAC voltage rating.

The 647143-4 carries an obsolete product status, which necessitates identification of active equivalent alternatives to ensure continued design support and procurement availability. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct compatibility without circuit redesign or board modification.

Substiute Parts

647143-4

TE Connectivity AMP ConnectorsIn Stock: 964647143-4 Datasheet

Current PartRFQ

2-647143-4

TE Connectivity AMP ConnectorsIn Stock: 9802-647143-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 647143-4 are identified based on strict electrical and mechanical parameter matching within the MTA-156 series. The substitution criteria include:

Critical Matching Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (4)
• Pitch spacing (0.156" / 3.96mm)
• Mounting method (Through Hole)
• Shrouding configuration (Shrouded - 4 Wall)
• Mating contact finish (Gold)
• Voltage rating (600VAC)
• Operating temperature range (-55°C ~ 105°C)
• Series designation (MTA-156)

Parts meeting all these parameters are classified as direct electrical and mechanical equivalents. Variations in product status (obsolete versus active) and RoHS compliance do not affect functional interchangeability but influence procurement and regulatory considerations.

Parameter Comparison

Engineering Selection Recommendations

The 2-647143-4 serves as the direct active equivalent to the obsolete 647143-4. Both parts are manufactured by TE Connectivity AMP Connectors within the MTA-156 series and maintain identical electrical and mechanical specifications across all critical parameters.

Product Status Consideration: The 647143-4 is classified as obsolete, while the 2-647143-4 maintains active product status. Active status ensures ongoing manufacturer support, availability through authorized distribution channels, and compliance with current manufacturing standards.

Compliance Differentiation: The 2-647143-4 is RoHS compliant, whereas the 647143-4 is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulations or customer requirements mandating RoHS-compliant components. The contact finish difference (Tin versus Tin-Lead on the post) reflects the RoHS compliance transition while maintaining functional equivalence.

Direct Substitution: The 2-647143-4 is suitable for direct substitution in existing designs utilizing the 647143-4. No circuit modifications, board redesign, or connector interface changes are required. The parts are mechanically and electrically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the 2-647143-4 be used as a direct replacement for the 647143-4 in existing assemblies?

A: Yes. The 2-647143-4 is a direct electrical and mechanical equivalent. All critical parameters including connector type, position count, pitch spacing, mounting method, shrouding, contact finish, voltage rating, and operating temperature are identical. No design modifications are necessary.

Q: What is the significance of the different contact finish on the post (Tin-Lead versus Tin)?

A: The contact finish difference reflects RoHS compliance requirements. Tin-Lead finishes are associated with non-compliant components, while Tin finishes are used in RoHS-compliant alternatives. Both finishes provide equivalent solder joint reliability and electrical performance in standard through-hole soldering applications.

Q: Why is the 647143-4 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support for this part number. The 2-647143-4 represents the current active equivalent within the MTA-156 series, ensuring continued availability and manufacturer support.

Q: Are there any mechanical compatibility issues when substituting the 2-647143-4 for the 647143-4?

A: No mechanical compatibility issues exist. Both parts share identical dimensions, mounting hole patterns, shrouding configuration, and contact geometry. Board-level integration is identical.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance is a regulatory and material composition designation. Electrical performance, voltage rating, current handling, and operating temperature specifications remain identical between the two parts.

Q: What inventory considerations should be evaluated?

A: The 647143-4 has 860 pieces in stock, while the 2-647143-4 has 946 pieces available. For new designs or long-term production, the 2-647143-4 is recommended due to its active status and assured continued availability.

Q: Can both parts be used interchangeably in the same production run?

A: Yes. The parts are functionally and mechanically equivalent and can be used interchangeably without affecting assembly processes, testing procedures, or final product performance.