TE Connectivity 1-641120-2 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-641120-2 is a shrouded rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 12-position connector operates within the MTA-156 series and features a 0.156" (3.96mm) pitch configuration with male pin contacts. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure ongoing component availability for production and field service applications.

Substiute Parts

1-641120-2

TE Connectivity AMP ConnectorsIn Stock: 7121-641120-2 Datasheet

Current PartRFQ

4-641120-2

TE Connectivity AMP ConnectorsIn Stock: 7654-641120-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-641120-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Pitch - Mating: 0.156" (3.96mm)
• Number of Positions: 12
• Contact Type: Male Pin
• Voltage Rating: 600VAC
• Operating Temperature Range: -55°C ~ 105°C

Mechanical Compatibility Parameters:

• Connector Type: Header
• Mounting Type: Through Hole
• Shrouding: Shrouded - 1 Wall
• Contact Shape: Circular
• Insulation Material: Thermoplastic, Glass Filled

Regulatory & Environmental Parameters:

• Material Flammability Rating: UL94 V-0
• RoHS Compliance Status
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part must maintain identical electrical and mechanical specifications across all listed parameters to ensure direct interchangeability without circuit redesign or mechanical rework.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 4-641120-2 is the direct equivalent substitute for the obsolete 1-641120-2 connector header. Both components share identical electrical and mechanical specifications across all critical parameters, including pitch, position count, contact configuration, voltage rating, and operating temperature range.

The 4-641120-2 offers the following advantages:

Product Status: The substitute part maintains active product status, ensuring ongoing availability and manufacturer support. The obsolete status of the 1-641120-2 creates supply chain risk for new production and field service applications.

Regulatory Compliance: The 4-641120-2 carries ROHS3 compliance certification, representing an enhanced regulatory position compared to the RoHS Compliant status of the original part. Both components maintain UL94 V-0 flammability rating and identical electrical safety specifications.

Contact Finish Variation: The substitute part features a Tin post finish compared to the Tin-Lead finish of the original part. This variation reflects modern manufacturing standards and RoHS compliance requirements. The mating contact finish remains Gold with identical thickness specifications, preserving electrical performance and signal integrity.

Inventory Availability: The 4-641120-2 is available in bulk packaging with 718 pieces in stock, compared to 670 pieces of the obsolete variant. This availability supports both new production requirements and field replacement needs.

Direct substitution of the 4-641120-2 for the 1-641120-2 requires no circuit redesign, mechanical rework, or qualification testing. The components are electrically and mechanically interchangeable within all specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the 4-641120-2 be used as a direct replacement for the 1-641120-2 without any modifications?

A: Yes. The 4-641120-2 is a direct equivalent substitute. All electrical and mechanical parameters are identical, including pitch, position count, contact type, voltage rating, and operating temperature range. No circuit redesign or mechanical rework is required.

Q: What is the difference between the Tin-Lead post finish on the 1-641120-2 and the Tin post finish on the 4-641120-2?

A: The post finish difference reflects modern manufacturing standards and RoHS compliance requirements. The Tin finish on the 4-641120-2 is compatible with standard solder reflow processes and provides equivalent electrical performance. The mating contact finish remains Gold on both parts, maintaining signal integrity and connection reliability.

Q: Why is the 1-641120-2 listed as obsolete?

A: The obsolete status indicates that the manufacturer has discontinued active production and support for this part number. The 4-641120-2 is the active equivalent, ensuring continued availability and manufacturer support for new designs and field service applications.

Q: Are there any packaging differences between the two parts?

A: The 1-641120-2 packaging specification is not defined in the available data. The 4-641120-2 is supplied in bulk packaging. Both parts are identical in form, fit, and function. Packaging differences do not affect electrical or mechanical compatibility.

Q: What is the significance of the ROHS3 compliance on the 4-641120-2 compared to RoHS Compliant on the 1-641120-2?

A: ROHS3 represents the current RoHS Directive compliance standard, while RoHS Compliant indicates compliance with earlier RoHS requirements. The 4-641120-2 meets current regulatory standards, providing enhanced compliance assurance for new production and international distribution.

Q: Can the 4-641120-2 be used in the same PCB footprint as the 1-641120-2?

A: Yes. Both parts share identical mechanical dimensions, including contact length, insulation height, and overall contact length. The through-hole mounting configuration and shrouding design are identical, ensuring compatibility with existing PCB layouts and assembly processes.

Q: What is the current rating for these connectors?

A: The current rating varies by wire gauge. Both the 1-641120-2 and 4-641120-2 share identical current rating specifications. Specific current capacity is determined by the wire gauge used in the mating cable assembly.

Q: Are both parts suitable for industrial applications?

A: Yes. Both the 1-641120-2 and 4-641120-2 are rated for general purpose and industrial applications. The UL94 V-0 flammability rating, 600VAC voltage rating, and -55°C to 105°C operating temperature range support industrial deployment across diverse environments.