TE Connectivity 770743-2 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 770743-2 is a shrouded vertical rectangular connector header from the Mini-Universal MATE-N-LOK series. This through-hole mounted component features 10 positions arranged in 2 rows with 0.163" (4.14mm) pitch spacing, designed for board-to-cable/wire applications. The connector employs male pin contacts with gold-plated mating surfaces and tin-lead plated posts for solder termination.

The 770743-2 is classified as an active product. Substitute parts are identified when inventory constraints, packaging requirements, or compliance specifications necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

770743-2

TE Connectivity AMP ConnectorsIn Stock: 819770743-2 Datasheet

Current PartRFQ

1-770743-1

TE Connectivity AMP ConnectorsIn Stock: 34411-770743-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 770743-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Contact type (Male Pin)
• Number of positions (10)
• Number of rows (2)
• Pitch spacing (0.163" / 4.14mm)
• Row spacing (0.163" / 4.14mm)
• Voltage rating (600VAC)
• Operating temperature range (-20°C ~ 105°C)

Mechanical Compatibility Parameters:

• Connector type (Header)
• Mounting type (Through Hole)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Contact shape (Circular)
• Insulation material (Polyamide/Nylon)
• Flammability rating (UL94 V-0)

Acceptable Variations:

• Contact finish on mating surface (Gold plating thickness)
• Contact finish on post (Tin-Lead versus Tin)
• Packaging configuration (Bulk versus standard)
• RoHS compliance status
• Inventory availability

The substitute part 1-770743-1 maintains full electrical and mechanical compatibility with the 770743-2 across all critical parameters while differing in post contact finish composition and regulatory compliance classification.

Parameter Comparison

Engineering Selection Recommendations

770743-2 Selection Criteria: The 770743-2 is appropriate for applications where RoHS non-compliant components are acceptable and standard packaging is required. This part maintains active product status and is available in moderate inventory quantities.

1-770743-1 Selection Criteria: The 1-770743-1 substitute is appropriate for applications requiring ROHS3 compliance or where bulk packaging is preferred. This part offers significantly higher inventory availability (3362 units versus 743 units) and maintains active product status. The post contact finish differs from the main part (Tin versus Tin-Lead), which does not affect electrical or mechanical compatibility for general-purpose applications.

Compliance Considerations: Selection between these parts should account for regulatory requirements. The 1-770743-1 provides ROHS3 compliance, while the 770743-2 does not. Both parts carry identical ECCN and HTSUS classifications and share the same base product number (770743), indicating they are variants within the same product family.

Packaging Considerations: The 770743-2 is supplied in standard packaging, while the 1-770743-1 is supplied in bulk packaging. Packaging selection depends on assembly process requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Are the 770743-2 and 1-770743-1 electrically interchangeable?

A: Yes. Both parts maintain identical electrical specifications including 10-position configuration, 0.163" (4.14mm) pitch spacing, 600VAC voltage rating, and -20°C to 105°C operating temperature range. The contact finish variation on the post (Tin-Lead versus Tin) does not affect electrical performance in general-purpose applications.

Q: What is the difference in contact finish between these parts?

A: The 770743-2 features tin-lead plating on the solder posts, while the 1-770743-1 features tin plating. Both maintain 150.0µin (3.81µm) thickness on the posts and 30.0µin (0.76µm) gold plating on the mating surfaces. This variation reflects different manufacturing processes and compliance requirements rather than functional differences.

Q: Can I use the 1-770743-1 as a direct replacement for the 770743-2?

A: Yes, for general-purpose applications. The 1-770743-1 is mechanically and electrically compatible with the 770743-2. The primary differences are packaging format (bulk versus standard) and RoHS compliance status (ROHS3 Compliant versus non-compliant). Verify that your application requirements do not mandate the specific RoHS non-compliant status of the 770743-2.

Q: What does the packaging difference mean?

A: The 770743-2 is supplied in standard packaging, while the 1-770743-1 is supplied in bulk packaging. This affects how the components are packaged for shipment and storage but does not impact the connector's electrical or mechanical performance. Bulk packaging typically accommodates higher-volume orders.

Q: Why does the 1-770743-1 have higher inventory availability?

A: The 1-770743-1 maintains 3362 units in stock compared to 743 units for the 770743-2. This difference reflects market demand patterns and supply chain management. The higher availability of the 1-770743-1 may reduce lead times for applications that can accommodate its specifications.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the 770743-2 and 1-770743-1 operate across the identical temperature range of -20°C to 105°C and carry the same UL94 V-0 flammability rating.

Q: What is the significance of the base product number 770743?

A: The base product number 770743 indicates that both the 770743-2 and 1-770743-1 are variants of the same core product family. The suffix (-2 and -1) distinguishes specific packaging, compliance, or manufacturing variations while maintaining core electrical and mechanical compatibility.