TE Connectivity 794636-4 Rectangular Connector Header: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 794636-4 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 active equivalent components essential for ongoing production and design requirements. The substitute part 3-794636-4 provides functional equivalence with active product status and improved compliance characteristics.

Substiute Parts

794636-4

TE Connectivity AMP ConnectorsIn Stock: 691794636-4 Datasheet

Current PartRFQ

3-794636-4

TE Connectivity AMP ConnectorsIn Stock: 105283-794636-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between 794636-4 and 3-794636-4 is valid based on the following criteria:

Identical Electrical and Mechanical Parameters:

• Connector type, contact type, and position count (4-position, 2-row header)
• Mating pitch and row spacing (0.118" / 3.00mm)
• Mounting configuration (surface mount, solder termination)
• Shrouding design (shrouded 4-wall) and fastening mechanism (locking ramp)
• Insulation dimensions, material composition, and color
• Operating temperature range (-40°C ~ 105°C)
• Voltage rating (250V)
• Flammability rating (UL94 V-0)

Allowable Variations:

• Contact finish composition: 794636-4 uses Tin-Lead; 3-794636-4 uses Tin. Both finishes provide equivalent electrical and mechanical performance at the specified voltage and temperature ratings.
• Product status: 794636-4 is obsolete; 3-794636-4 is active
• Packaging: 794636-4 has unspecified packaging; 3-794636-4 is supplied in Cut Tape (CT)
• Compliance status: 794636-4 is RoHS non-compliant; 3-794636-4 is RoHS3 compliant

These variations do not affect functional compatibility in applications requiring a 4-position, 3.00mm pitch surface mount header with the specified electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 3-794636-4

The part 3-794636-4 is the direct active equivalent of the obsolete 794636-4. Selection of 3-794636-4 is appropriate for all applications currently using or specifying 794636-4 based on the following factors:

Product Status: 3-794636-4 maintains active product status with confirmed inventory availability (10,507 pieces), ensuring long-term supply chain continuity compared to the obsolete 794636-4.

Electrical and Mechanical Compatibility: All critical parameters are identical, including connector geometry, pitch spacing, contact configuration, operating temperature range, and voltage rating. The components are functionally interchangeable in board-to-cable/wire applications.

Contact Finish Variation: The transition from Tin-Lead to Tin contact finish in 3-794636-4 is compatible with the specified electrical and thermal operating envelope. Both finishes provide equivalent performance at 250V and -40°C to 105°C operating conditions.

Compliance Improvement: 3-794636-4 achieves RoHS3 compliance, addressing regulatory requirements for new designs and production environments subject to RoHS directives. The obsolete 794636-4 does not meet current RoHS standards.

Packaging Specification: 3-794636-4 is supplied in Cut Tape (CT) packaging, providing standardized handling and integration with automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Are 794636-4 and 3-794636-4 electrically interchangeable?

A: Yes. Both parts are 4-position, 2-row headers with identical 0.118" (3.00mm) pitch spacing, contact configuration, and electrical ratings (250V, -40°C to 105°C). The contact finish difference (Tin-Lead versus Tin) does not affect electrical performance within the specified operating parameters.

Q: What is the difference between Tin-Lead and Tin contact finishes?

A: Both finishes provide equivalent electrical conductivity and mechanical reliability at the specified voltage and temperature ratings. Tin-Lead (794636-4) and Tin (3-794636-4) are both acceptable for general-purpose connector applications. The Tin finish in 3-794636-4 aligns with RoHS3 compliance requirements.

Q: Can I use 3-794636-4 as a direct replacement for 794636-4 in existing designs?

A: Yes. The parts are mechanically and electrically compatible. No design modifications are required. The primary advantage of 3-794636-4 is active product status and RoHS3 compliance.

Q: Why is 794636-4 listed as obsolete?

A: The obsolete status indicates that TE Connectivity has discontinued production of this part number. The active equivalent 3-794636-4 provides the same functionality with current manufacturing support.

Q: What does "Cut Tape (CT)" packaging mean?

A: Cut Tape packaging supplies components on a continuous carrier tape that is cut to specified lengths. This format is standard for automated assembly processes and provides efficient component handling and storage.

Q: Are there any thermal or mechanical limitations when substituting 3-794636-4 for 794636-4?

A: No. Both parts share identical operating temperature range (-40°C to 105°C), insulation materials (Polyamide/Nylon), flammability rating (UL94 V-0), and mechanical dimensions. Substitution does not introduce thermal or mechanical constraints.

Q: Does the RoHS3 compliance of 3-794636-4 affect compatibility?

A: No. RoHS3 compliance is a regulatory and environmental attribute that does not affect electrical or mechanical compatibility. It indicates that 3-794636-4 meets current environmental standards for restricted substances, making it suitable for applications subject to RoHS directives.

Q: What is the current inventory status for these parts?

A: 794636-4 has 634 pieces in stock but is obsolete. 3-794636-4 has 10,507 pieces in stock and is active. For new orders and ongoing production, 3-794636-4 is the recommended selection.