TE Connectivity 794633-4 Rectangular Connector Header: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 794633-4 is a surface mount rectangular connector header from the Micro MATE-N-LOK series. This component is a 4-position, 2-row shrouded header with 0.118" (3.00mm) pitch spacing, designed for board-to-cable/wire applications with solder termination. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. The connector features a locking ramp fastening mechanism, board lock capability, and pick-and-place compatibility for automated assembly processes.

Substiute Parts

794633-4

TE Connectivity AMP ConnectorsIn Stock: 813794633-4 Datasheet

Current PartRFQ

3-794633-4

TE Connectivity AMP ConnectorsIn Stock: 10193-794633-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 794633-4 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Voltage rating of 250V
• Operating temperature range of -40°C to 105°C
• Current rating capability (varies by wire gauge)

Mechanical Parameters:

• 4-position, 2-row configuration
• 0.118" (3.00mm) mating pitch
• 0.118" (3.00mm) row spacing
• Surface mount mounting type
• Shrouded 4-wall design
• Solder termination method
• Locking ramp fastening mechanism
• Square contact shape
• Brass contact material with tin or tin-lead finish
• Polyamide (PA) nylon insulation material
• Black insulation color
• 0.364" (9.25mm) insulation height

Functional Features:

• Board lock capability
• Pick and place compatibility
• Board-to-cable/wire connection style

The substitute part 3-794633-4 maintains full equivalence across all critical parameters while differing only in product status (active versus obsolete) and packaging format (tape and reel versus bulk), along with minor contact finish specification changes (tin versus tin-lead) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-794633-4 is the direct functional equivalent of the obsolete 794633-4 model. Selection of the substitute part is supported by the following engineering criteria:

Product Status Consideration: The main part 794633-4 carries an obsolete product status, indicating discontinued manufacturing and limited long-term availability. The substitute part 3-794633-4 maintains active product status with confirmed inventory availability, ensuring procurement continuity and supply chain reliability.

Compliance and Certification: The substitute part 3-794633-4 provides improved regulatory compliance posture. While the main part carries RoHS non-compliant status with vendor-undefined REACH status, the substitute achieves ROHS3 compliance and REACH unaffected status. This compliance improvement aligns with current regulatory requirements and reduces potential restrictions on component use in regulated applications.

Electrical and Mechanical Equivalence: Both parts maintain identical electrical ratings (250V, -40°C to 105°C operating range) and mechanical specifications (4-position, 2-row, 3.00mm pitch, surface mount, shrouded 4-wall design, solder termination, locking ramp fastening). The contact finish specification change from tin-lead to tin represents a material improvement consistent with modern manufacturing standards and does not compromise electrical or mechanical performance.

Packaging Consideration: The substitute part is supplied in tape and reel (TR) packaging format, which is standard for automated assembly processes. The main part bulk packaging format may require repackaging for pick-and-place operations. Both parts retain identical pick-and-place compatibility features.

Frequently Asked Questions (FAQ)

Q: Are the 794633-4 and 3-794633-4 connectors mechanically interchangeable?

A: Yes. Both connectors maintain identical mechanical specifications including 4-position, 2-row configuration, 0.118" (3.00mm) mating pitch, 0.118" (3.00mm) row spacing, surface mount mounting type, shrouded 4-wall design, and solder termination. They are fully interchangeable in board-level applications.

Q: What is the difference in contact finish between the two parts?

A: The main part 794633-4 features tin-lead contact finish on both mating and post surfaces. The substitute part 3-794633-4 features tin contact finish on both surfaces. Both maintain identical finish thickness of 100.0µin (2.54µm). Tin finish is functionally equivalent to tin-lead finish for electrical performance and is consistent with current manufacturing standards.

Q: Why does the substitute part have better RoHS and REACH compliance status?

A: The substitute part 3-794633-4 is an active product manufactured to current regulatory standards, achieving ROHS3 compliance and REACH unaffected status. The main part 794633-4, being obsolete, carries non-compliant status. The compliance improvement reflects updated manufacturing processes and material specifications in the active product line.

Q: Does the packaging format difference affect component performance?

A: No. The packaging format difference (bulk versus tape and reel) does not affect electrical or mechanical performance. Tape and reel packaging is standard for automated assembly and pick-and-place operations. Both parts retain identical pick-and-place compatibility features.

Q: Are the electrical ratings identical between the two parts?

A: Yes. Both parts maintain identical voltage rating of 250V, operating temperature range of -40°C to 105°C, current rating capability (varies by wire gauge), and material flammability rating of UL94 V-0.

Q: Can the 3-794633-4 be used as a direct replacement in existing designs using the 794633-4?

A: Yes. The 3-794633-4 is a direct functional equivalent with identical electrical and mechanical specifications. It is suitable for direct replacement in existing designs without circuit or layout modifications.

Q: What is the inventory status of each part?

A: The main part 794633-4 has 725 pieces in stock with obsolete product status. The substitute part 3-794633-4 has 944 pieces in stock with active product status, providing greater long-term availability assurance.

Q: Are both parts suitable for automated assembly processes?

A: Yes. Both parts feature pick-and-place compatibility and board lock capability, making them suitable for automated assembly. The substitute part 3-794633-4 is supplied in tape and reel packaging, which is optimized for automated pick-and-place equipment.