TE Connectivity AMP Connectors 794311-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 794311-1 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 shrouded with 4-wall construction and incorporates a board lock fastening mechanism with locking ramp design.

The 794311-1 carries an obsolete product status, which necessitates identification of equivalent substitute components for ongoing design support and procurement requirements. Active alternative configurations are available that maintain electrical and mechanical compatibility while offering current product availability and improved compliance certifications.

Substiute Parts

794311-1

TE Connectivity AMP ConnectorsIn Stock: 855794311-1 Datasheet

Current PartRFQ

1-794311-1

TE Connectivity AMP ConnectorsIn Stock: 9271-794311-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 794311-1 connector is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Contact type: Male Pin
• Number of positions: 20
• Pitch configuration: 0.165" (4.20mm) mating pitch with 0.165" (4.20mm) row spacing
• Voltage rating: 600VAC
• Operating temperature range: -55°C ~ 105°C

Mechanical Compatibility Parameters:

• Connector type: Header
• Mounting type: Through Hole
• Shrouding configuration: Shrouded - 4 Wall
• Fastening type: Locking Ramp
• Insulation height: 0.504" (12.80mm)
• Contact post length: 0.138" (3.50mm)
• Contact shape: Square
• Termination method: Solder

Material and Construction Parameters:

• Insulation material: Polyamide (PA), Nylon
• Contact material: Copper Alloy
• Flammability rating: UL94 V-2
• Insulation color: Natural

Substitute parts must maintain identical specifications across all listed parameters to ensure direct functional and mechanical interchangeability without design modification or board rework.

Parameter Comparison

Engineering Selection Recommendations

The 1-794311-1 connector serves as the direct functional equivalent to the obsolete 794311-1 model. Both connectors maintain identical electrical and mechanical specifications across all critical parameters including contact configuration, pitch spacing, mounting methodology, and operating characteristics.

The primary distinction between these components relates to product lifecycle status and regulatory compliance:

Product Status Consideration: The 794311-1 carries obsolete designation, indicating discontinued manufacturing and limited long-term availability. The 1-794311-1 maintains active product status with current manufacturing support and established supply chain availability.

Compliance Improvement: The 1-794311-1 achieves ROHS3 compliance and REACH unaffected status, whereas the 794311-1 is RoHS non-compliant and REACH affected. This compliance differential reflects updated manufacturing processes and material specifications aligned with current regulatory requirements.

Contact Finish Specification: The 794311-1 utilizes Tin-Lead contact finish on both mating and post surfaces. The 1-794311-1 employs pure Tin contact finish. Both finishes provide equivalent electrical performance and solderability characteristics for through-hole termination applications. The Tin finish in the substitute part aligns with lead-free manufacturing standards.

For new designs and ongoing procurement requirements, the 1-794311-1 is the appropriate selection. For legacy system maintenance where the original 794311-1 specification is mandated, the 1-794311-1 provides direct substitution without design modification or board rework.

Frequently Asked Questions (FAQ)

Q: Can the 1-794311-1 be used as a direct replacement for the 794311-1 in existing assemblies?

A: Yes. The 1-794311-1 maintains identical electrical and mechanical specifications across all critical parameters. Direct substitution is possible without board modification or design changes. The connector footprint, mounting hole pattern, contact spacing, and functional performance are equivalent.

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

A: Both Tin-Lead and Tin finishes provide equivalent electrical conductivity and solderability for through-hole solder termination. The Tin finish in the 1-794311-1 reflects lead-free manufacturing compliance. This change does not affect electrical performance or mechanical compatibility.

Q: Why does the 794311-1 carry obsolete status?

A: Obsolete designation indicates the manufacturer has discontinued production of this specific part number. The 1-794311-1 represents the current active equivalent within the AMP-DUAC series, offering continued manufacturing support and supply availability.

Q: Are there compliance implications for using the 794311-1 in new designs?

A: The 794311-1 is RoHS non-compliant and REACH affected. For applications subject to RoHS3 or REACH regulatory requirements, the 1-794311-1 is the appropriate selection. The 1-794311-1 achieves ROHS3 compliance and REACH unaffected status.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by equivalence across connector type, contact configuration (20 positions, 2 rows), pitch spacing (0.165" mating and row spacing), mounting type (through hole), shrouding design (4-wall), fastening mechanism (locking ramp), insulation specifications, operating temperature range (-55°C ~ 105°C), and voltage rating (600VAC).

Q: Is the 1-794311-1 available in the same packaging as the 794311-1?

A: Both components are supplied in equivalent packaging configurations suitable for through-hole assembly. The 1-794311-1 maintains current inventory availability with 853 pieces in stock, compared to 805 pieces for the obsolete 794311-1.

Q: Can the 1-794311-1 be used in applications originally designed for the 794311-1?

A: Yes. The 1-794311-1 is functionally and mechanically equivalent to the 794311-1. Applications designed for the 794311-1 can utilize the 1-794311-1 without modification. The substitute part provides improved product status and regulatory compliance.