TE Connectivity AMP Connectors 641121-6 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 641121-6 is a rectangular connector header designed for through-hole, right-angle mounting applications. This connector features a 6-position configuration with 0.156" (3.96mm) pitch spacing, suitable for board-to-cable/wire connections in general purpose and industrial applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and field service requirements.

Substiute Parts

641121-6

TE Connectivity AMP ConnectorsIn Stock: 788641121-6 Datasheet

Current PartRFQ

3-641121-6

TE Connectivity AMP ConnectorsIn Stock: 10443-641121-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 641121-6 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Pitch spacing: 0.156" (3.96mm)
• Number of positions: 6
• Contact type: Male Pin
• Voltage rating: 600VAC
• Operating temperature range: -55°C ~ 105°C

Mechanical Parameters:

• Connector type: Header
• Mounting type: Through Hole, Right Angle
• Style: Board to Cable/Wire
• Shrouding: Shrouded - 1 Wall
• Contact shape: Square
• Termination: Solder
• Fastening type: Friction Lock

Material & Compliance Parameters:

• Insulation material: Thermoplastic, Glass Filled
• Contact material: Copper Alloy
• Material flammability rating: UL94 V-0
• Moisture sensitivity level: 1 (Unlimited)

The substitute part 3-641121-6 maintains full equivalence across all critical electrical and mechanical parameters. The primary distinction is product status (active versus obsolete) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-641121-6 is the direct equivalent for the obsolete 641121-6. Selection of the substitute part is based on the following engineering criteria:

Product Status: The main part 641121-6 is classified as obsolete. The substitute part 3-641121-6 is active and currently manufactured, ensuring long-term availability and supply chain continuity.

Electrical & Mechanical Equivalence: All critical electrical parameters (voltage rating, operating temperature range, pitch spacing, contact configuration) and mechanical parameters (mounting type, connector geometry, termination method) are identical between the main part and substitute.

Compliance Status: The substitute part 3-641121-6 is RoHS Compliant and REACH Unaffected, representing improved regulatory compliance compared to the non-compliant main part. This distinction is significant for applications subject to RoHS and REACH regulations.

Contact Finish Difference: The main part features Tin-Lead post finish, while the substitute features Tin post finish. This change reflects industry transition away from lead-based finishes and does not affect functional compatibility or electrical performance in the specified operating conditions.

Functional Compatibility: The substitute part maintains full functional compatibility with existing designs utilizing the 641121-6. Direct substitution is supported without circuit or mechanical redesign.

Frequently Asked Questions (FAQ)

Q: Can the 3-641121-6 be used as a direct replacement for the 641121-6 in existing designs?

A: Yes. The 3-641121-6 is functionally and mechanically equivalent to the 641121-6 across all critical parameters. Direct substitution is supported without design modification.

Q: What is the primary reason for substitution?

A: The 641121-6 is classified as obsolete. The 3-641121-6 is an active product from the same manufacturer and series, ensuring continued availability and supply chain reliability.

Q: Are there differences in electrical performance between the two parts?

A: No. Both parts maintain identical voltage ratings (600VAC), operating temperature ranges (-55°C ~ 105°C), and current handling characteristics (varies by wire gauge).

Q: What is the significance of the RoHS compliance difference?

A: The substitute part 3-641121-6 is RoHS Compliant, while the main part is non-compliant. For applications subject to RoHS regulations, the substitute part is required. For applications without RoHS requirements, both parts are functionally equivalent.

Q: Does the contact finish change from Tin-Lead to Tin affect performance?

A: No. The change from Tin-Lead to Tin post finish does not affect electrical performance or mechanical compatibility. This change reflects industry-standard transition to lead-free finishes.

Q: Are the mating and post contact dimensions identical?

A: Yes. Both parts feature identical contact lengths: 0.400" (10.16mm) mating length and 0.125" (3.18mm) post length. Insulation height is also identical at 0.300" (7.62mm).

Q: What is the packaging difference?

A: The main part packaging is not specified. The substitute part is supplied in Bulk packaging, which is standard for this connector type.

Q: Are both parts from the same manufacturer?

A: Yes. Both parts are manufactured by TE Connectivity AMP Connectors and belong to the MTA-156 series.

Q: Can the 3-641121-6 be used in new designs?

A: Yes. The 3-641121-6 is an active product suitable for new designs. Its active status and improved compliance characteristics make it the preferred choice for both new and replacement applications.

Q: Is there any difference in moisture sensitivity?

A: No. Both parts have identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity concerns.