TE Connectivity 770174-1 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 770174-1 is a shrouded vertical rectangular connector header designed for through-hole board-to-cable/wire applications. This 4-position Mini-Universal MATE-N-LOK series connector features male pins with a 0.163" (4.14mm) pitch and is rated for 600VAC operation across a -20°C to 85°C temperature range. The part is currently designated as Last Time Buy status, indicating production discontinuation. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this connector.

Substiute Parts

770174-1

TE Connectivity AMP ConnectorsIn Stock: 24420770174-1 Datasheet

Current PartRFQ

1-770174-0

TE Connectivity AMP ConnectorsIn Stock: 26921-770174-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 770174-1 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility:

• Identical connector type (Header)
• Matching number of positions (4)
• Matching number of rows (2)
• Identical pitch specifications (0.163" / 4.14mm mating pitch and row spacing)
• Same mounting method (Through Hole)
• Identical shrouding configuration (Shrouded - 4 Wall)

Electrical Compatibility:

• Matching contact type (Male Pin)
• Identical voltage rating (600VAC)
• Equivalent operating temperature range (-20°C ~ 85°C)
• Same material flammability rating (UL94 V-0)

Physical Compatibility:

• Matching insulation height (0.531" / 13.50mm)
• Identical contact post length (0.175" / 4.45mm)
• Same contact shape (Circular)
• Equivalent contact material (Brass)
• Matching insulation material (Polyamide PA, Nylon)

The substitute part 1-770174-0 meets all mechanical and electrical compatibility criteria. The primary distinction is the contact finish specification and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-770174-0 is a direct functional equivalent to the 770174-1 for all mechanical and electrical applications. Both connectors share identical dimensional specifications, contact configurations, and performance ratings within the Mini-Universal MATE-N-LOK series.

Product Status Consideration: The 770174-1 is designated Last Time Buy, indicating imminent production discontinuation. The 1-770174-0 maintains Active product status, ensuring continued availability and supply chain stability for new designs and ongoing production requirements.

Compliance Differentiation: The primary distinction between these parts is regulatory compliance status. The 1-770174-0 is ROHS3 Compliant, whereas the 770174-1 is RoHS non-compliant. For applications subject to RoHS directives or customer specifications requiring RoHS compliance, the 1-770174-0 is the appropriate selection.

Contact Finish Specification: The 770174-1 features Tin-Lead contact finish, while the 1-770174-0 uses Tin finish. Both maintain identical finish thickness specifications (150.0µin / 3.81µm). The Tin finish of the 1-770174-0 aligns with lead-free manufacturing initiatives and RoHS compliance requirements.

For new designs and applications requiring long-term component availability, the 1-770174-0 is the recommended selection. For legacy system maintenance where RoHS compliance is not mandated, either part provides equivalent functional performance.

Frequently Asked Questions (FAQ)

Q: Are the 770174-1 and 1-770174-0 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 4-position configuration, 0.163" (4.14mm) pitch, through-hole mounting, and shrouded 4-wall design. They are directly interchangeable in board layouts and cable assemblies.

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

A: The 770174-1 uses Tin-Lead finish, while the 1-770174-0 uses Tin finish. Both maintain the same finish thickness (150.0µin / 3.81µm). Tin finish is lead-free and aligns with RoHS compliance requirements. The contact finish thickness ensures equivalent electrical performance and durability.

Q: Why is the 770174-1 designated Last Time Buy?

A: Last Time Buy status indicates TE Connectivity is discontinuing production of this part number. The 1-770174-0 is the active replacement, ensuring continued availability for future orders and production runs.

Q: Is the 1-770174-0 suitable for applications currently using the 770174-1?

A: Yes. The 1-770174-0 provides full functional equivalence for all electrical and mechanical requirements. It is suitable for direct substitution in existing applications. The ROHS3 compliance of the 1-770174-0 makes it the preferred choice for new designs and applications with regulatory compliance requirements.

Q: What is the significance of ROHS3 compliance on the 1-770174-0?

A: ROHS3 compliance indicates the 1-770174-0 meets Restriction of Hazardous Substances directives, restricting lead and other hazardous materials. This is required for many applications, particularly in consumer electronics and regulated industries. The 770174-1, being RoHS non-compliant, contains lead in its Tin-Lead finish.

Q: Are there any performance differences between these connectors?

A: No. Both connectors operate identically across all specified parameters: 600VAC voltage rating, -20°C to 85°C operating temperature, UL94 V-0 flammability rating, and equivalent current handling based on wire gauge. Performance is functionally equivalent.

Q: What is the Moisture Sensitivity Level (MSL) for these connectors?

A: Both the 770174-1 and 1-770174-0 have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors require no special moisture control during storage, handling, or assembly.

Q: Can I use the 1-770174-0 in legacy systems designed for the 770174-1?

A: Yes. The 1-770174-0 is a direct substitute for legacy applications. The only consideration is that the 1-770174-0 uses Tin finish instead of Tin-Lead, which is advantageous for long-term reliability and environmental compliance.