TE Connectivity 770174-2 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 770174-2 is a shrouded vertical rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This Mini-Universal MATE-N-LOK series connector features 4 positions arranged in 2 rows with 0.163" (4.14mm) pitch spacing and gold-plated mating contacts. The part is currently designated as Last Time Buy, indicating discontinued production status. Identification of equivalent substitute parts is necessary to ensure design continuity and procurement availability for ongoing production and maintenance applications.

Substiute Parts

770174-2

TE Connectivity AMP ConnectorsIn Stock: 17784770174-2 Datasheet

Current PartRFQ

1-770174-1

TE Connectivity AMP ConnectorsIn Stock: 23901-770174-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 770174-2 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Position count (4 positions)
• Row configuration (2 rows)
• Mating pitch (0.163" / 4.14mm)
• Row spacing (0.163" / 4.14mm)
• Mounting method (Through Hole)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)

Electrical Performance Parameters:

• Operating temperature range (-20°C ~ 105°C)
• Voltage rating (600VAC)
• Contact material (Brass)
• Contact shape (Circular)
• Mating contact finish (Gold)

Regulatory & Material Parameters:

• Flammability rating (UL94 V-0)
• Insulation material (Polyamide/Nylon)
• Series designation (Mini-Universal MATE-N-LOK)

The substitute part 1-770174-1 maintains full equivalence across all mechanical, electrical, and regulatory parameters specified for the 770174-2.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-770174-1 serves as the direct functional equivalent and recommended substitute for the 770174-2. Both parts share identical mechanical dimensions, electrical ratings, and performance specifications across all critical parameters.

Primary Selection Basis:

The 770174-2 is designated Last Time Buy, indicating end-of-life status with no further production planned. The 1-770174-1 maintains Active product status, ensuring continued availability and supply chain reliability for new designs and ongoing production requirements.

Compliance Consideration:

The substitute part 1-770174-1 achieves ROHS3 compliance, whereas the 770174-2 is RoHS non-compliant. This represents an improvement in regulatory alignment for applications subject to RoHS directives. The contact finish post specification differs between parts (Tin-Lead versus Tin), reflecting the RoHS compliance transition. Both finishes maintain equivalent electrical and mechanical performance within the specified operating parameters.

Interchangeability:

The parts are mechanically and electrically interchangeable. PCB footprints, mating interface dimensions, and electrical performance remain identical. No design modifications are required for substitution.

Frequently Asked Questions (FAQ)

Q: Are the 770174-2 and 1-770174-1 mechanically interchangeable?

A: Yes. Both parts feature identical mating pitch (0.163" / 4.14mm), row spacing (0.163" / 4.14mm), shrouding configuration (Shrouded - 4 Wall), and through-hole mounting specifications. PCB footprints and connector interface dimensions are identical.

Q: What is the difference between the contact finishes on the post?

A: The 770174-2 uses Tin-Lead finish on the post, while the 1-770174-1 uses Tin finish. This difference reflects RoHS3 compliance requirements. Both finishes provide equivalent electrical conductivity and solder joint reliability within the specified operating temperature range (-20°C ~ 105°C).

Q: Why is the 770174-2 designated Last Time Buy?

A: Last Time Buy status indicates that TE Connectivity has discontinued production of this part number. The 1-770174-1 is the active replacement part maintaining the same electrical and mechanical specifications.

Q: Can I use the 1-770174-1 in existing designs currently using the 770174-2?

A: Yes. The parts are fully interchangeable with no design modifications required. Existing PCB layouts, mating connectors, and electrical specifications remain valid.

Q: What is the significance of the RoHS compliance difference?

A: The 1-770174-1 achieves ROHS3 compliance, meeting current regulatory requirements for products sold in regions with RoHS directives. The 770174-2 is non-compliant. For new designs or applications subject to RoHS regulations, the 1-770174-1 is the appropriate selection.

Q: Are the electrical ratings identical between both parts?

A: Yes. Both parts maintain 600VAC voltage rating, identical operating temperature range (-20°C ~ 105°C), UL94 V-0 flammability rating, and equivalent current-carrying capacity based on wire gauge.

Q: What is the current availability status?

A: The 770174-2 has 17,711 pieces in stock but is Last Time Buy. The 1-770174-1 has 2,300 pieces in stock and is Active product status, ensuring continued supply.

Q: Are there any performance differences in the mating contact finish?

A: No. Both parts feature gold-plated mating contacts with identical finish thickness (30.0µin / 0.76µm), ensuring equivalent contact resistance and signal integrity.