TE Connectivity AMP Connectors 1-104178-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-104178-3 is a rectangular connector header designed for through-hole mounting applications. This connector features a 25-position, single-row configuration with 0.050" (1.27mm) pitch spacing, suitable for board-to-board or cable interconnection in automotive, general purpose, medical, and telecommunications applications.

The 1-104178-3 carries an obsolete product status. Identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production and field service requirements for systems utilizing this connector type.

Substiute Parts

1-104178-3

TE Connectivity AMP ConnectorsIn Stock: 12161-104178-3 Datasheet

Current PartRFQ

6-104178-3

TE Connectivity AMP ConnectorsIn Stock: 8046-104178-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-104178-3 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for connector type, contact configuration, pitch spacing, mating contact dimensions, post dimensions, insulation geometry, contact materials, and operating environmental ratings.

The following parameters establish substitution eligibility:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 25
• Number of Rows: 1
• Pitch - Mating: 0.050" (1.27mm)
• Mounting Type: Through Hole
• Termination: Solder
• Contact Length - Mating: 0.120" (3.05mm)
• Contact Length - Post: 0.100" (2.54mm)
• Overall Contact Length: 0.320" (8.13mm)
• Insulation Height: 0.100" (2.54mm)
• Contact Shape: Square
• Contact Material: Copper Alloy
• Insulation Material: Thermoplastic
• Operating Temperature: -65°C ~ 105°C
• Voltage Rating: 30VAC
• Material Flammability Rating: UL94 V-0
• Series: AMPMODU System 50

Parameter Comparison

Engineering Selection Recommendations

The 6-104178-3 is a direct functional equivalent to the 1-104178-3 across all critical electrical and mechanical parameters. Both parts are manufactured by TE Connectivity AMP Connectors within the AMPMODU System 50 series and maintain identical connector geometry, contact configuration, and performance specifications.

The primary distinction between these parts is product status and regulatory compliance. The 1-104178-3 is classified as obsolete, while the 6-104178-3 maintains active product status. The 6-104178-3 achieves RoHS compliance, whereas the 1-104178-3 is RoHS non-compliant. The contact finish on the post differs: the 1-104178-3 uses Tin-Lead, while the 6-104178-3 uses Tin.

For new designs and ongoing production requiring this connector type, the 6-104178-3 is the appropriate selection. For legacy system support or applications with specific Tin-Lead post finish requirements, the 1-104178-3 remains functionally equivalent where available inventory permits.

Frequently Asked Questions (FAQ)

Q: Are the 1-104178-3 and 6-104178-3 mechanically interchangeable?

A: Yes. Both parts maintain identical connector geometry, contact spacing, mating dimensions, and mounting configuration. They are mechanically interchangeable in all applications.

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

A: The 1-104178-3 features Tin-Lead post finish, while the 6-104178-3 features Tin post finish. Both maintain identical contact finish thickness of 150.0µin (3.81µm) on the post and 30.0µin (0.76µm) on the mating surface. The mating contact finish is gold for both parts.

Q: Why is the 1-104178-3 marked as obsolete?

A: The 1-104178-3 carries an obsolete product status from the manufacturer. The 6-104178-3 is the active production equivalent and is recommended for all new applications.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance status reflects material composition and regulatory adherence but does not alter electrical performance, contact resistance, or operating characteristics. Both parts maintain identical voltage rating, operating temperature range, and electrical specifications.

Q: What packaging is available for the 6-104178-3?

A: The 6-104178-3 is supplied in tube packaging. The 1-104178-3 packaging specification is not provided in the technical data.

Q: Can these connectors be used in automotive applications?

A: Yes. Both the 1-104178-3 and 6-104178-3 are rated for automotive applications, along with general purpose, medical, and telecommunications use.

Q: What is the operating temperature range for these connectors?

A: Both parts operate across the temperature range of -65°C to 105°C, suitable for industrial and automotive environments.

Q: Are these connectors suitable for high-frequency applications?

A: The technical specifications provided do not include high-frequency performance data. These connectors are specified for 30VAC voltage rating and general-purpose interconnection applications.