TE Connectivity AMP Connectors 794666-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 794666-8 is a rectangular connector header designed for through-hole mounting applications. This connector features an 8-position vertical configuration with 4.2mm pitch spacing, shrouded 4-wall design, and board lock fastening. The part operates across a temperature range of -55°C to 105°C and carries a 600VAC voltage rating.

The 794666-8 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this connector specification.

Substiute Parts

794666-8

TE Connectivity AMP ConnectorsIn Stock: 1097794666-8 Datasheet

Current PartRFQ

1586493-8

TE Connectivity AMP ConnectorsIn Stock: 6901586493-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 794666-8 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility:

• Connector type (Header)
• Contact type (Male Pin)
• Position count (8 positions)
• Row configuration (2 rows)
• Mating pitch (0.165" / 4.20mm)
• Row spacing (0.165" / 4.20mm)
• Mounting method (Through Hole)
• Shrouding design (Shrouded - 4 Wall)
• Fastening mechanism (Locking Ramp)

Electrical & Environmental Compatibility:

• Operating temperature range (-55°C ~ 105°C)
• Voltage rating (600VAC)
• Flammability rating (UL94 V-0)
• Termination method (Solder)

Material Specifications:

• Insulation material (Polyamide / Nylon)
• Contact material (Copper Alloy)
• Insulation height (0.504" / 12.80mm)
• Contact post length (0.138" / 3.50mm)

The substitute part 1586493-8 maintains full equivalence across all mechanical, electrical, and environmental parameters. The primary distinction is product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1586493-8 is the direct substitute for the obsolete 794666-8 rectangular connector header. Both parts maintain identical mechanical, electrical, and environmental specifications across all critical parameters including connector geometry, pitch spacing, mounting configuration, temperature range, and voltage rating.

The 1586493-8 offers the following advantages for new designs and production continuity:

Product Status: The 1586493-8 carries Active product status, ensuring ongoing availability and manufacturer support, whereas the 794666-8 is classified as Obsolete.

Regulatory Compliance: The 1586493-8 is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The 794666-8 is RoHS non-compliant with undefined REACH status.

Contact Finish: The 1586493-8 features pure Tin contact finish on both mating and post surfaces, compared to the Tin-Lead finish of the 794666-8. This change aligns with modern lead-free manufacturing standards while maintaining electrical performance and reliability.

Functional Equivalence: All mechanical dimensions, electrical ratings, and performance characteristics remain unchanged, ensuring direct interchangeability in existing circuit board designs and connector mating applications.

Frequently Asked Questions (FAQ)

Q: Can the 1586493-8 be used as a direct replacement for the 794666-8 in existing designs?

A: Yes. The 1586493-8 is mechanically and electrically equivalent to the 794666-8. All critical parameters including position count, pitch spacing, mounting type, shrouding, fastening mechanism, operating temperature range, and voltage rating are identical. The connector will mate with existing receptacles and perform identically in circuit applications.

Q: What is the difference between the Tin-Lead finish of the 794666-8 and the Tin finish of the 1586493-8?

A: The 794666-8 uses Tin-Lead contact finish, while the 1586493-8 uses pure Tin finish. Both finishes provide equivalent electrical conductivity and contact reliability. The Tin finish of the 1586493-8 reflects current lead-free manufacturing standards and regulatory compliance requirements.

Q: Why is the 794666-8 classified as Obsolete?

A: The 794666-8 has reached end-of-life status with the manufacturer. The 1586493-8 represents the current production equivalent within the AMP-DUAC series, offering the same functionality with active product support and modern regulatory compliance.

Q: Are there any compatibility concerns when substituting the 1586493-8 for the 794666-8?

A: No compatibility concerns exist. Both connectors share identical mechanical dimensions, electrical specifications, and environmental ratings. The 1586493-8 will function identically in all applications where the 794666-8 was previously used.

Q: What is the inventory status of these parts?

A: The 794666-8 has 1078 pieces in stock as new original inventory. The 1586493-8 has 623 pieces in stock as new original inventory. Both parts are available for immediate procurement.

Q: Do both parts meet the same flammability and environmental standards?

A: Yes. Both the 794666-8 and 1586493-8 carry UL94 V-0 material flammability rating and operate across the identical temperature range of -55°C to 105°C with 600VAC voltage rating. The 1586493-8 additionally meets ROHS3 compliance and REACH unaffected status, representing current regulatory standards.

Q: What is the pitch spacing of these connectors?

A: Both connectors feature 0.165" (4.20mm) mating pitch with 0.165" (4.20mm) row spacing in a 2-row, 8-position configuration.

Q: Are these connectors suitable for board-to-board or cable applications?

A: Yes. Both the 794666-8 and 1586493-8 are designed for board-to-board or cable style applications with through-hole solder termination and locking ramp fastening.