TE Connectivity 641127-3 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641127-3 is a shrouded right-angle connector header designed for through-hole mounting in board-to-cable/wire applications. This component features a 3-position configuration with 0.100" (2.54mm) pitch spacing and is part of the MTA-100 series. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct compatibility without circuit redesign or board modification.

Substiute Parts

641127-3

TE Connectivity AMP ConnectorsIn Stock: 874641127-3 Datasheet

Current PartRFQ

3-641127-3

TE Connectivity AMP ConnectorsIn Stock: 39033-641127-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete TE Connectivity 641127-3 is based on strict equivalence across all electrical and mechanical parameters. The substitute part 3-641127-3 qualifies as a direct equivalent because it maintains identical specifications across the following critical parameters:

Electrical Parameters:

• Contact type, material, and finish specifications (gold mating surface, tin post finish)
• Voltage rating (250VAC)
• Operating temperature range (-55°C ~ 105°C)
• Current rating methodology (varies by wire gauge)

Mechanical Parameters:

• Connector configuration (3-position header, 0.100" pitch)
• Mounting style (through-hole, right-angle)
• Shrouding design (shrouded - 1 wall)
• Contact dimensions (mating length 0.295", post length 0.140", insulation height 0.225")
• Contact shape (square)

Compliance Parameters:

• Material flammability rating (UL94 V-0)
• RoHS compliance status
• Moisture sensitivity level (MSL 1 - Unlimited)

The substitute part differs only in product status (active versus obsolete) and packaging configuration (bulk versus unspecified), with no impact on functional compatibility or performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-641127-3 is the direct equivalent for the obsolete TE Connectivity 641127-3. Selection of the substitute part is based on the following engineering criteria:

Compliance and Certification: Both parts maintain identical UL94 V-0 material flammability ratings and RoHS compliance status, ensuring regulatory requirements are met in all applications. The substitute part carries active product status with full manufacturer support and availability.

Functional Equivalence: All electrical and mechanical parameters are identical between the main part and substitute, including contact configuration, pitch spacing, mounting orientation, and thermal operating range. No circuit redesign or board layout modification is required for substitution.

Availability and Supply Chain: The substitute part 3-641127-3 is currently in active production with 3831 pieces in stock, compared to the obsolete main part with limited remaining inventory of 840 pieces. For new designs and ongoing production requirements, the substitute part provides assured long-term availability.

Packaging Consideration: The substitute part is supplied in bulk packaging, which may differ from the original packaging configuration. Verify packaging requirements for your specific procurement and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can 3-641127-3 be used as a direct replacement for 641127-3 in existing designs?

A: Yes. The substitute part 3-641127-3 is electrically and mechanically identical to 641127-3 across all specified parameters. No design changes, board modifications, or component rework are required. Direct substitution is supported for all applications.

Q: What is the difference between 641127-3 and 3-641127-3?

A: The parts are functionally equivalent. The primary differences are product status (641127-3 is obsolete; 3-641127-3 is active) and packaging (3-641127-3 is supplied in bulk). All electrical, mechanical, and compliance specifications are identical.

Q: Are the contact dimensions identical between the two parts?

A: Yes. Both parts have identical contact dimensions: mating length of 0.295" (7.49mm), post length of 0.140" (3.56mm), and insulation height of 0.225" (5.72mm). Mating and mounting compatibility is fully preserved.

Q: Do both parts meet the same compliance standards?

A: Both parts meet UL94 V-0 material flammability requirements and RoHS compliance standards. Operating temperature range (-55°C ~ 105°C) and voltage rating (250VAC) are identical. Moisture sensitivity level is MSL 1 (Unlimited) for both parts.

Q: What is the pitch spacing for these connectors?

A: Both parts feature 0.100" (2.54mm) pitch spacing, which is the standard spacing for MTA-100 series connectors. This spacing is maintained across all mating and mounting dimensions.

Q: Can these parts be used interchangeably in production?

A: Yes. The substitute part 3-641127-3 can be used interchangeably with 641127-3 in production environments. Verify that bulk packaging meets your assembly and inventory management requirements.

Q: What is the contact finish specification?

A: Both parts feature gold-plated mating contacts (15.0µin / 0.38µm thickness) and tin-plated posts (150.0µin / 3.81µm thickness). Contact material is copper alloy for both parts.

Q: Are there any temperature or voltage limitations?

A: Both parts operate across the identical temperature range of -55°C to 105°C and are rated for 250VAC. Current rating varies by wire gauge for both parts. No additional limitations apply to the substitute part.