TE Connectivity 794079-1 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 794079-1 is a vertical rectangular connector header from the Mini-Universal MATE-N-LOK series, designed for through-hole board-to-cable/wire applications. This 24-position connector features a 0.163" (4.14mm) pitch configuration with shrouded 4-wall design and solder termination. The part is classified as obsolete, necessitating identification of active equivalent components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

794079-1

TE Connectivity AMP ConnectorsIn Stock: 1106794079-1 Datasheet

Current PartRFQ

1-794079-0

TE Connectivity AMP ConnectorsIn Stock: 18781-794079-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 794079-1 connector header is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Number of positions: 24
• Pitch - mating: 0.163" (4.14mm)
• Number of rows: 2
• Row spacing - mating: 0.163" (4.14mm)
• Contact type: Male pin
• Voltage rating: 600VAC
• Operating temperature range: -20°C ~ 85°C

Mechanical Compatibility Parameters:

• Connector type: Header
• Mounting type: Through hole
• Termination: Solder
• Shrouding: Shrouded - 4 wall
• Insulation material: Polyamide (PA), Nylon
• Contact shape: Circular
• Fastening type: Locking ramp
• Insulation height: 0.531" (13.50mm)
• Contact length - post: 0.175" (4.45mm)

Environmental & Compliance Parameters:

• Material flammability rating: UL94 V-0
• Moisture sensitivity level: 1 (Unlimited)

The substitute part 1-794079-0 maintains full equivalence across all critical electrical and mechanical parameters while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-794079-0 is the direct equivalent substitute for the obsolete 794079-1 connector header. Both components share identical electrical and mechanical specifications within the Mini-Universal MATE-N-LOK series, ensuring full functional compatibility in board-to-cable/wire applications.

The 1-794079-0 substitute offers the following advantages:

Product Status: The substitute maintains active product status, ensuring continued availability and manufacturer support for new designs and production requirements.

Compliance Enhancement: The 1-794079-0 is RoHS compliant, whereas the original 794079-1 is RoHS non-compliant. This compliance improvement aligns with current environmental regulations and procurement standards.

Contact Finish Specification: The substitute features pure tin contact finish (both mating and post surfaces) compared to the tin-lead finish of the original part. Both finishes maintain the same thickness specification of 150.0µin (3.81µm) and are suitable for solder termination applications.

Packaging: The substitute is supplied in bulk packaging, which may affect procurement and inventory management workflows compared to the original part's packaging specification.

All other electrical, mechanical, and environmental parameters remain equivalent, confirming direct substitution capability for existing applications.

Frequently Asked Questions (FAQ)

Q: Can the 1-794079-0 be used as a direct replacement for the 794079-1 in existing designs?

A: Yes. The 1-794079-0 maintains full electrical and mechanical equivalence with the 794079-1 across all critical parameters including pitch, position count, voltage rating, operating temperature range, and physical dimensions. Direct substitution is supported for board-to-cable/wire applications.

Q: What is the significance of the contact finish difference between tin-lead and tin?

A: Both contact finishes are applied at identical thickness (150.0µin / 3.81µm) and are suitable for solder termination. The tin finish of the 1-794079-0 reflects modern manufacturing standards and RoHS compliance requirements. The functional performance in solder joint formation remains equivalent.

Q: Does the RoHS compliance difference affect compatibility?

A: RoHS compliance status does not affect electrical or mechanical compatibility. The 1-794079-0's RoHS compliance status makes it the preferred choice for new designs and applications subject to environmental regulations. For legacy systems, both parts remain functionally equivalent.

Q: Are there any packaging considerations when switching from 794079-1 to 1-794079-0?

A: The 1-794079-0 is supplied in bulk packaging. Procurement and inventory management processes should account for this packaging specification. The connector itself maintains identical form factor and mounting characteristics.

Q: What is the moisture sensitivity level for both parts?

A: Both the 794079-1 and 1-794079-0 carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special environmental controls.

Q: Are the electrical ratings identical between the two parts?

A: Yes. Both parts maintain 600VAC voltage rating, -20°C to 85°C operating temperature range, and UL94 V-0 flammability rating. Current rating varies by wire gauge for both components.

Q: Can the 1-794079-0 be used in applications originally designed for the 794079-1?

A: Yes. The 1-794079-0 is a direct functional equivalent. All mating interfaces, pin configurations, and electrical characteristics are identical, supporting seamless integration into existing applications.