TE Connectivity AMP Connectors 1-794303-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-794303-1 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 4 positions arranged in 2 rows, utilizing a 0.165" (4.20mm) pitch configuration. The part belongs to the AMP-DUAC series and is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing design and procurement requirements.

The obsolete status of the 1-794303-1 requires substitution with active product lines to ensure supply chain continuity and long-term component availability for new production runs and field replacements.

Substiute Parts

1-794303-1

TE Connectivity AMP ConnectorsIn Stock: 8651-794303-1 Datasheet

Current PartRFQ

1586039-4

TE Connectivity AMP ConnectorsIn Stock: 24531586039-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-794303-1 with equivalent rectangular connectors is determined by strict alignment of the following critical parameters:

Mechanical Compatibility Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (4)
• 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)
• Termination method (Solder)
• Fastening type (Locking Ramp)

Electrical Compatibility Parameters:

• Voltage rating (600VAC)
• Operating temperature range capability

Regulatory Compliance Parameters:

• RoHS3 compliance
• UL94 V-2 flammability rating

The substitute part 1586039-4 satisfies all critical mechanical and electrical parameters required for direct substitution in applications previously designed for the 1-794303-1. The substitute maintains identical mating pitch, row configuration, shrouding design, and fastening mechanism, ensuring mechanical interchangeability at the connector interface level.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1586039-4 rectangular connector header is the direct substitute for the obsolete 1-794303-1. Selection of the 1586039-4 is based on the following engineering criteria:

Product Status Alignment: The 1586039-4 maintains active product status within the TE Connectivity AMP Connectors portfolio, ensuring ongoing availability, manufacturing support, and supply chain stability compared to the obsolete 1-794303-1.

Mechanical Interchangeability: The substitute part maintains identical mating pitch (0.165" / 4.20mm), row configuration (2 rows), position count (4), shrouding design (4-wall), and fastening mechanism (locking ramp). These parameters ensure direct mechanical compatibility with existing PCB layouts and mating connectors designed for the original part.

Electrical Compliance: Both parts maintain equivalent voltage rating (600VAC) and flammability classification (UL94 V-2). The substitute operates within a slightly reduced lower temperature bound (-40°C versus -55°C), which remains suitable for the majority of industrial and general-purpose applications.

Regulatory Compliance: The 1586039-4 maintains ROHS3 compliance and identical export classification (EAR99), ensuring regulatory continuity for procurement and deployment.

Inventory Availability: The substitute part is available in significantly higher inventory quantities (2380 pieces) compared to the obsolete part, supporting both immediate procurement needs and long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1586039-4 be used as a direct replacement for the 1-794303-1 in existing designs?

A: Yes. The 1586039-4 maintains identical mating pitch (0.165" / 4.20mm), row spacing, position count, shrouding configuration, and fastening mechanism. The connector interfaces directly with existing mating connectors and PCB layouts designed for the 1-794303-1.

Q: What are the differences between the 1-794303-1 and 1586039-4?

A: The primary differences are product status (obsolete versus active), series designation (AMP-DUAC versus VAL-U-LOK), contact material (copper alloy versus brass alloy), insulation material specification (PA nylon versus PA66 nylon 6/6), contact finish thickness (3.00µm versus 2.03µm), operating temperature lower bound (-55°C versus -40°C), and current rating specification (unspecified versus 9A).

Q: Does the operating temperature range difference affect substitution suitability?

A: The 1586039-4 operates from -40°C to 105°C, compared to the 1-794303-1 range of -55°C to 105°C. Applications requiring operation below -40°C require evaluation against specific design requirements. For applications within the -40°C to 105°C range, the substitute is fully suitable.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the 1-794303-1 and 1586039-4 are ROHS3 compliant, ensuring regulatory alignment for procurement and deployment in RoHS-regulated markets.

Q: What is the current rating for each part?

A: The 1-794303-1 does not specify a current rating. The 1586039-4 is rated for 9A per contact. Applications requiring current capacity verification should reference the 9A specification for the substitute part.

Q: Are there packaging differences between these parts?

A: The 1-794303-1 packaging is not specified in available documentation. The 1586039-4 is supplied in bulk packaging. Specific packaging requirements should be confirmed with the supplier for procurement planning.

Q: What is the contact material difference, and does it affect performance?

A: The 1-794303-1 uses copper alloy contacts, while the 1586039-4 uses brass alloy contacts. Both materials are suitable for tin plating and solder termination applications. The brass alloy in the substitute provides equivalent electrical performance for the specified voltage rating (600VAC) and general-purpose applications.

Q: Can the 1586039-4 be used in the same applications as the 1-794303-1?

A: Yes, for applications within the -40°C to 105°C operating range. Both parts are rated for 600VAC, feature identical mechanical interfaces, and maintain UL94 V-2 flammability classification. The substitute is suitable for general-purpose, industrial, and lighting applications.