TE Connectivity AMP Connectors 794489-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 794489-1 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 14 positions arranged in 2 rows, utilizing a 0.165" (4.20mm) pitch configuration. The connector is classified as shrouded with 4-wall construction and employs a locking ramp fastening mechanism for secure board-to-board or cable connections.

The 794489-1 carries an obsolete product status, which necessitates identification of active equivalent alternatives to ensure continued availability and supply chain reliability for new designs and production requirements.

Substiute Parts

794489-1

TE Connectivity AMP ConnectorsIn Stock: 868794489-1 Datasheet

Current PartRFQ

1-794489-1

TE Connectivity AMP ConnectorsIn Stock: 11881-794489-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of rectangular connector headers is determined by strict equivalence across electrical and mechanical parameters. The primary substitution criteria for the 794489-1 include:

Critical Matching Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (14)
• Number of rows (2)
• Pitch - mating (0.165" / 4.20mm)
• Row spacing - mating (0.165" / 4.20mm)
• Mounting type (Through Hole)
• Shrouding configuration (Shrouded - 4 Wall)
• Fastening type (Locking Ramp)
• Termination method (Solder)
• Insulation height (0.504" / 12.80mm)
• Contact shape (Square)
• Contact length - post (0.138" / 3.50mm)
• Insulation material (Polyamide / Nylon)
• Contact material (Copper Alloy)
• Operating temperature range (-55°C ~ 105°C)
• Voltage rating (600VAC)
• Material flammability rating (UL94 V-0)
• Series designation (AMP-DUAC)

Parts meeting all these parameters are classified as direct equivalents and may be substituted without design modification.

Parameter Comparison

Engineering Selection Recommendations

The 1-794489-1 serves as the direct active equivalent to the obsolete 794489-1. Both parts maintain identical electrical and mechanical specifications across all critical connector parameters, including pitch, position count, row configuration, mounting methodology, and thermal operating range.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The 794489-1 is classified as obsolete with RoHS non-compliant status, while the 1-794489-1 is an active product with RoHS compliance certification. The contact finish specification differs between the two parts: the 794489-1 utilizes Tin-Lead plating, whereas the 1-794489-1 employs Tin plating. This change reflects modern environmental and regulatory requirements.

For new designs and ongoing production, the 1-794489-1 is the appropriate selection due to its active product status, RoHS compliance, and REACH unaffected classification. Existing designs utilizing the 794489-1 may transition to the 1-794489-1 without modification to PCB layouts, mating connector specifications, or electrical performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 1-794489-1 be used as a direct replacement for the 794489-1 in existing assemblies?

A: Yes. The 1-794489-1 is mechanically and electrically equivalent to the 794489-1 across all critical parameters. Both connectors feature identical pitch, position count, row spacing, mounting type, shrouding configuration, and fastening mechanism. No PCB layout modifications or design changes are required for substitution.

Q: What is the significance of the contact finish difference between Tin-Lead and Tin?

A: The contact finish difference reflects regulatory compliance evolution. The 794489-1 uses Tin-Lead plating, while the 1-794489-1 uses Tin plating. Both finishes provide equivalent electrical conductivity and contact reliability. The Tin finish on the 1-794489-1 aligns with RoHS compliance requirements and modern environmental standards.

Q: Why is the 794489-1 listed as obsolete?

A: The 794489-1 has reached end-of-life status in the manufacturer's product portfolio. The 1-794489-1 represents the active continuation of this connector family with updated compliance certifications. Existing inventory of the 794489-1 remains available, but new designs should specify the 1-794489-1 for long-term supply assurance.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both connectors operate across the identical temperature range of -55°C to 105°C and maintain the same 600VAC voltage rating. Electrical performance, current handling capacity, and thermal characteristics are equivalent.

Q: What does RoHS compliance mean for connector selection?

A: RoHS compliance indicates the connector meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. The 1-794489-1 is RoHS compliant, making it suitable for applications subject to environmental and regulatory requirements. The 794489-1 is RoHS non-compliant due to its Tin-Lead contact finish.

Q: Can these connectors be used interchangeably with different mating connectors?

A: No. Both the 794489-1 and 1-794489-1 are header connectors designed to mate with receptacle connectors of matching pitch (0.165" / 4.20mm), position count (14), and row configuration (2 rows). Mating connectors must be specifically designed for the AMP-DUAC series with identical electrical and mechanical specifications.

Q: What is the through-hole mounting requirement for these connectors?

A: Both connectors are designed for through-hole soldering to PCBs. The solder termination method requires insertion of the connector posts through PCB holes followed by wave or reflow soldering. The 0.138" (3.50mm) post length accommodates standard PCB thicknesses with appropriate solder fillet formation.

Q: Is the 4-wall shrouding configuration important for connector selection?

A: Yes. The 4-wall shrouding provides mechanical protection and alignment guidance during mating operations. This configuration is integral to the connector's mechanical design and must be matched in any equivalent or substitute part. Both the 794489-1 and 1-794489-1 feature identical 4-wall shrouding.