TE Connectivity AMP Connectors 794638-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 794638-8 is a Micro MATE-N-LOK rectangular connector header designed for surface mount applications. This connector features 8 positions arranged in 2 rows with 0.118" (3.00mm) pitch spacing, male pin contact type, and shrouded 4-wall construction. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts maintain identical electrical and mechanical specifications while offering improved product status and availability.

Substiute Parts

794638-8

TE Connectivity AMP ConnectorsIn Stock: 642794638-8 Datasheet

Current PartRFQ

3-794638-8

TE Connectivity AMP ConnectorsIn Stock: 130683-794638-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 794638-8 with active equivalent components is based on strict electrical and mechanical parameter matching within the Micro MATE-N-LOK series. The following parameters determine substitution eligibility:

Critical Matching Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (8)
• Number of rows (2)
• Pitch spacing (0.118" / 3.00mm)
• Row spacing (0.118" / 3.00mm)
• Mounting type (Surface Mount)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Voltage rating (250V)
• Operating temperature range (-40°C ~ 105°C)
• Material flammability rating (UL94 V-0)
• Insulation material (Polyamide/Nylon)
• Contact material (Brass)
• Contact finish - mating (Gold)
• Contact finish - post (Tin or Tin-Lead)

The substitute part 3-794638-8 maintains all critical electrical and mechanical parameters while differing only in packaging format and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-794638-8 is the direct equivalent for the obsolete 794638-8. Selection of the substitute part is based on the following engineering criteria:

Product Status: The main part 794638-8 carries an obsolete classification, limiting availability for new production and long-term supply chain reliability. The substitute part 3-794638-8 maintains active product status, ensuring continued manufacturer support and component availability.

Regulatory Compliance: The substitute part 3-794638-8 is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution. The main part lists RoHS status as not applicable, indicating it predates current compliance standards.

Electrical and Mechanical Compatibility: All critical electrical parameters (voltage rating, operating temperature range, contact materials, and finishes) are identical between the main part and substitute. All mechanical parameters (connector type, contact configuration, pitch spacing, shrouding, and mounting type) are identical, ensuring direct functional equivalence.

Contact Finish Consideration: The substitute part features tin post finish compared to the main part's tin-lead finish. Both finishes meet the 100.0µin (2.54µm) thickness specification and are compatible with standard solder termination processes. Tin finish represents current manufacturing practice and eliminates lead content.

Packaging Format: The substitute part is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The main part packaging is listed as bulk format. This difference does not affect electrical or mechanical performance and accommodates modern manufacturing workflows.

Frequently Asked Questions (FAQ)

Q: Can the 3-794638-8 substitute directly replace the 794638-8 in existing designs?

A: Yes. The 3-794638-8 maintains identical electrical and mechanical specifications across all critical parameters including connector type, contact configuration, pitch spacing, voltage rating, operating temperature range, and shrouding design. Direct substitution is supported without design modification.

Q: What is the difference between the tin-lead finish on the main part and the tin finish on the substitute?

A: Both finishes meet the specified thickness of 100.0µin (2.54µm) and are compatible with solder termination processes. The tin finish on the substitute part represents current manufacturing practice and eliminates lead content, aligning with modern environmental standards.

Q: Does the Tape & Reel packaging of the substitute part affect compatibility?

A: No. Tape & Reel packaging is a supply format that does not affect the electrical or mechanical performance of the connector. This packaging format is standard for automated assembly processes and does not impact functional equivalence.

Q: Why is the main part 794638-8 classified as obsolete?

A: Obsolete classification indicates the manufacturer has discontinued active production and support for this part number. The substitute part 3-794638-8 provides continued access to equivalent functionality through an active product offering.

Q: Is the ROHS3 compliance of the substitute part significant?

A: Yes. ROHS3 compliance ensures the substitute part meets current environmental and regulatory requirements for electronic component manufacturing. This compliance status supports long-term supply chain viability and regulatory acceptance in modern applications.

Q: Are there any performance differences between the main part and substitute?

A: No performance differences exist. Both parts operate identically within the specified voltage rating of 250V, temperature range of -40°C to 105°C, and all other electrical and mechanical parameters. The differences are limited to product status, regulatory compliance, and packaging format.

Q: Can the 3-794638-8 be used in applications originally designed for the 794638-8?

A: Yes. The substitute part is fully compatible with all applications designed for the main part. Identical connector type, contact configuration, pitch spacing, and electrical ratings ensure functional equivalence across all application requirements.