TE Connectivity AMP Connectors 794311-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 794311-2 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 20 positions arranged in 2 rows, utilizing a 0.165" (4.20mm) pitch configuration. The connector is classified as a shrouded 4-wall header with male pin contacts, solder termination, and board lock fastening capability.

The 794311-2 carries an obsolete product status, which necessitates identification of equivalent substitute components for ongoing design support and procurement purposes. Active equivalent models are available that maintain full electrical and mechanical compatibility while offering current product availability and updated compliance certifications.

Substiute Parts

794311-2

TE Connectivity AMP ConnectorsIn Stock: 826794311-2 Datasheet

Current PartRFQ

1-794311-2

TE Connectivity AMP ConnectorsIn Stock: 7291-794311-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 794311-2 rectangular connector header is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Contact type (Male Pin)
• Number of positions (20)
• Number of rows (2)
• Pitch - mating (0.165" / 4.20mm)
• Row spacing - mating (0.165" / 4.20mm)
• Voltage rating (600VAC)
• Operating temperature range (-55°C ~ 105°C)
• Contact finish - mating (Gold)

Mechanical Compatibility Parameters:

• Connector type (Header)
• Mounting type (Through Hole)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Fastening type (Locking Ramp)
• Insulation height (0.504" / 12.80mm)
• Contact shape (Square)
• Insulation material (Polyamide / Nylon)
• Flammability rating (UL94 V-2)

The substitute part 1-794311-2 maintains complete equivalence across all critical electrical and mechanical parameters. Variations in post-side contact finish (Tin versus Tin-Lead) and product compliance status do not affect functional interchangeability in board-to-board or cable connector applications.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 1-794311-2 provides direct functional replacement for the obsolete 794311-2 connector header. Both components are manufactured by TE Connectivity AMP Connectors within the AMP-DUAC series and maintain identical electrical and mechanical specifications across all critical parameters.

Product Status Consideration: The 794311-2 carries obsolete status, indicating discontinued manufacturing and limited long-term availability. The 1-794311-2 maintains active product status, ensuring continued supply chain access and manufacturer support.

Compliance Improvement: The 1-794311-2 offers enhanced regulatory compliance through RoHS compliance certification and REACH unaffected status, compared to the non-compliant and vendor-undefined status of the original 794311-2. This compliance improvement aligns with current environmental and regulatory requirements without affecting connector performance or interchangeability.

Contact Finish Variation: The post-side contact finish differs between the two parts (Tin-Lead versus Tin). This variation reflects manufacturing process updates and does not impact electrical performance or mechanical compatibility. Both finishes provide equivalent solder joint reliability and long-term performance in through-hole applications.

Selection Basis: Selection of 1-794311-2 as the substitute is based on product status transition from obsolete to active, improved regulatory compliance certifications, and complete electrical and mechanical equivalence. No functional testing or design modification is required for substitution in existing applications.

Frequently Asked Questions (FAQ)

Q: Are the 794311-2 and 1-794311-2 connectors electrically interchangeable?

A: Yes. Both connectors maintain identical electrical specifications including 600VAC voltage rating, -55°C to 105°C operating temperature range, 20-position configuration, 0.165" (4.20mm) pitch, and gold-plated mating contacts. Electrical performance is equivalent.

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

A: The 794311-2 features Tin-Lead post finish while the 1-794311-2 features Tin post finish. Both finishes provide equivalent solder joint reliability and mechanical strength. The Tin finish in the 1-794311-2 reflects updated manufacturing processes and improved environmental compliance.

Q: Can I use 1-794311-2 as a direct replacement in existing designs using 794311-2?

A: Yes. The 1-794311-2 provides direct mechanical and electrical replacement without design modification. PCB footprints, mating connector specifications, and mounting requirements remain identical. No layout or schematic changes are required.

Q: Why is the 794311-2 listed as obsolete?

A: The 794311-2 has been discontinued by TE Connectivity AMP Connectors. The 1-794311-2 represents the current active equivalent within the AMP-DUAC series, offering improved compliance and continued manufacturer support.

Q: Does the RoHS compliance difference affect connector performance?

A: No. RoHS compliance status reflects manufacturing material composition and environmental regulations, not electrical or mechanical performance. The 1-794311-2 RoHS compliance provides regulatory alignment for new designs and procurement without affecting connector functionality.

Q: Are the shrouding and board lock features identical between both parts?

A: Yes. Both connectors feature identical 4-wall shrouding and board lock fastening mechanisms. Mechanical engagement, retention force, and mating interface specifications are equivalent.

Q: What is the pitch specification and why is it important for substitution?

A: Both connectors maintain 0.165" (4.20mm) mating pitch and 0.165" (4.20mm) row spacing. Pitch specification determines PCB footprint compatibility and mating connector selection. Identical pitch ensures direct substitution without PCB modification.

Q: Can these connectors be used in board-to-board and cable applications?

A: Yes. Both the 794311-2 and 1-794311-2 are specified for board-to-board or cable style applications. The through-hole mounting type and solder termination support both application categories.

Q: What is the insulation material and flammability rating?

A: Both connectors use Polyamide (PA) Nylon insulation with UL94 V-2 flammability rating. This material composition and rating are identical between the two parts, ensuring equivalent thermal and flame performance.