TE Connectivity 794637-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 794637-2 is a Micro MATE-N-LOK rectangular connector header designed for surface mount applications. This connector accommodates 2 positions arranged in 2 rows with shrouded 4-wall construction and solder termination. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements.

Substiute Parts

794637-2

TE Connectivity AMP ConnectorsIn Stock: 830794637-2 Datasheet

Current PartRFQ

3-794637-2

TE Connectivity AMP ConnectorsIn Stock: 36143-794637-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 794637-2 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for connector type, contact configuration, position count, row arrangement, row spacing, mounting method, termination type, shrouding design, fastening mechanism, insulation dimensions, contact geometry, contact material, insulation material, operating temperature range, voltage rating, flammability rating, and functional features.

The primary substitute identified is the TE Connectivity 3-794637-2, which maintains complete parameter equivalence with the original part while offering active product status and improved compliance posture. This substitution is valid based on the following matching criteria:

• Identical series designation (Micro MATE-N-LOK)
• Identical connector type and contact configuration (Header, Male Pin)
• Identical position and row configuration (2 positions, 2 rows)
• Identical row spacing (0.118" / 3.00mm)
• Identical mounting and termination methods (Surface Mount, Solder)
• Identical shrouding and fastening design (Shrouded - 4 Wall, Locking Ramp)
• Identical insulation specifications (0.364" height, Polyamide/Nylon, Black)
• Identical contact geometry and material (Square, Brass)
• Identical mating contact finish (Gold, 15.0µin)
• Identical post contact finish thickness (100.0µin / 2.54µm)
• Identical operating temperature range (-40°C ~ 105°C)
• Identical voltage rating (250V)
• Identical flammability rating (UL94 V-0)
• Identical features (Solder Retention)

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-794637-2 serves as the direct functional equivalent to the obsolete 794637-2. Both parts maintain identical electrical and mechanical specifications across all critical parameters, ensuring direct substitution without design modification.

The 3-794637-2 offers significant advantages for new designs and production continuity:

Product Status: The substitute part carries active product status, ensuring ongoing availability and manufacturer support, whereas the original part is obsolete and subject to supply discontinuation.

Regulatory Compliance: The 3-794637-2 achieves ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements. The original 794637-2 is RoHS non-compliant with undefined REACH status, presenting compliance risks for applications subject to these regulations.

Contact Finish Specification: The substitute part specifies Tin post contact finish compared to the Tin-Lead finish of the original part. Both maintain identical contact finish thickness (100.0µin / 2.54µm) and identical mating contact finish (Gold, 15.0µin). This change aligns with lead-free manufacturing standards while preserving electrical and mechanical performance.

Packaging: The substitute part is supplied in Cut Tape (CT) packaging, providing standard handling and automated assembly compatibility.

For applications requiring the original Tin-Lead post contact finish specification, the 794637-2 remains available in current inventory. However, for new designs and long-term production requirements, the 3-794637-2 is the recommended selection based on active product status and regulatory compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the 3-794637-2 directly replace the 794637-2 in existing designs?

A: Yes. The 3-794637-2 maintains complete electrical and mechanical equivalence with the 794637-2 across all specified parameters. Direct substitution is supported without circuit board layout modification or connector interface redesign.

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

A: Both finishes provide equivalent electrical conductivity and mechanical performance at the specified thickness (100.0µin / 2.54µm). The Tin finish of the 3-794637-2 aligns with lead-free manufacturing standards, while the Tin-Lead finish of the 794637-2 represents legacy specification. The mating contact finish (Gold) remains identical in both parts.

Q: Why is the 794637-2 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support for this part number. The 3-794637-2 represents the active equivalent, ensuring continued availability and manufacturer backing.

Q: Does the Cut Tape (CT) packaging of the 3-794637-2 affect compatibility?

A: No. Cut Tape packaging is standard for surface mount components and is compatible with automated assembly equipment. Packaging format does not affect electrical or mechanical performance.

Q: Are there compliance differences between the two parts?

A: Yes. The 3-794637-2 is ROHS3 compliant and REACH Unaffected, meeting current environmental regulations. The 794637-2 is RoHS non-compliant with undefined REACH status. For applications subject to these regulations, the 3-794637-2 is required.

Q: What is the inventory status of each part?

A: The 794637-2 has 815 pieces in stock as new original inventory. The 3-794637-2 has 3567 pieces in stock as new original inventory, providing greater availability for production requirements.

Q: Are the operating temperature ranges identical?

A: Yes. Both parts operate across the identical temperature range of -40°C to 105°C, ensuring thermal performance equivalence across all application environments.

Q: Can the parts be mixed in the same assembly?

A: Yes. The parts are electrically and mechanically equivalent and can be used interchangeably within the same assembly without performance degradation or compatibility issues.