TE Connectivity AMP Connectors 2-146255-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2-146255-3 is a rectangular connector header designed for through-hole mounting applications. This connector features a 46-position, 2-row configuration with 0.100" (2.54mm) pitch spacing, suitable for board-to-board or cable interconnections. The part operates within the AMPMODU Mod II series and is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

2-146255-3

TE Connectivity AMP ConnectorsIn Stock: 9312-146255-3 Datasheet

Current PartRFQ

2346-6121-TG

3MIn Stock: 9262346-6121-TG Datasheet

SimilarRFQ

TSW-123-07-G-D-LL

Samtec Inc.In Stock: 791TSW-123-07-G-D-LL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 2-146255-3 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 46
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Fastening Type: Push-Pull
• Style: Board to Board or Cable
• Shrouding: Unshrouded
• Material Flammability Rating: UL94 V-0

Acceptable Parameter Variations:

• Product Status: Active alternatives are preferred for obsolete parts
• Operating Temperature Range: Substitute ranges must encompass or exceed the original specification
• Contact Finish specifications: Minor variations in thickness and material composition are acceptable provided electrical performance is maintained
• Insulation Material: Alternative materials meeting UL94 V-0 classification are acceptable
• Overall Contact Length: Minor dimensional variations within manufacturing tolerances are acceptable

The identified substitute parts meet all mandatory matching parameters while offering active product status and improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

3M 2346-6121-TG: This substitute maintains full electrical and mechanical compatibility with the original TE Connectivity 2-146255-3. The 3M part is active in production, ensuring long-term availability. Both parts share identical pitch spacing, position count, and current rating specifications. The 3M alternative uses thermoplastic glass-filled insulation material instead of liquid crystal polymer, both meeting UL94 V-0 flammability requirements. The operating temperature range of -55°C to 105°C covers the majority of the original specification, with the exception of the lower temperature limit. Both parts maintain RoHS non-compliant status. This substitute is suitable for applications where the lower temperature bound of -55°C is acceptable.

Samtec TSW-123-07-G-D-LL: This substitute provides full electrical and mechanical compatibility with enhanced compliance characteristics. The Samtec part is active in production and achieves ROHS3 compliance, addressing regulatory requirements that the original obsolete part does not meet. The connector maintains identical pitch, position count, and mating contact length specifications. The operating temperature range extends to 125°C, exceeding the original specification. The contact post length is 0.100" (2.54mm) compared to the original 0.120" (3.05mm), representing a minor dimensional variation. The Samtec part uses phosphor bronze contact material and polybutylene terephthalate insulation, both meeting UL94 V-0 requirements. This substitute is recommended for new designs requiring RoHS3 compliance and extended temperature performance.

Frequently Asked Questions (FAQ)

Q: Can the 3M 2346-6121-TG be used as a direct replacement for the TE Connectivity 2-146255-3?

A: The 3M 2346-6121-TG meets all mandatory electrical and mechanical parameters for substitution. The connector maintains identical pitch spacing (0.100"), position count (46), row configuration (2 rows), and current rating (3A). The primary consideration is the operating temperature range, which extends to -55°C instead of -65°C. For applications operating above -55°C, this substitute provides full compatibility.

Q: What are the key differences between the Samtec TSW-123-07-G-D-LL and the original TE Connectivity part?

A: The Samtec substitute maintains all critical electrical and mechanical parameters including pitch, position count, and mating contact specifications. Notable differences include ROHS3 compliance status (versus RoHS non-compliant), extended operating temperature range to 125°C, and a contact post length of 0.100" versus the original 0.120". The contact material is phosphor bronze rather than copper alloy. These variations do not affect electrical performance or mechanical fit in standard applications.

Q: Are there any packaging differences between these substitutes?

A: The TE Connectivity 2-146255-3 and 3M 2346-6121-TG do not specify packaging details in the provided data. The Samtec TSW-123-07-G-D-LL is supplied in bulk packaging. Packaging specifications should be confirmed with the respective manufacturers for procurement requirements.

Q: Which substitute is recommended for new product designs?

A: The Samtec TSW-123-07-G-D-LL is recommended for new designs due to its active product status, ROHS3 compliance, and extended operating temperature range to 125°C. This part addresses both obsolescence concerns and regulatory compliance requirements. The 3M 2346-6121-TG is suitable for applications where the -55°C lower temperature limit is acceptable and RoHS3 compliance is not required.

Q: Do these substitutes maintain the same solder termination compatibility?

A: All three connectors utilize solder termination. The Samtec part specifies kinked pin solder termination, which provides enhanced mechanical retention during soldering. This variation does not affect compatibility with standard through-hole soldering processes.

Q: What is the significance of the contact finish thickness differences?

A: The original TE Connectivity part specifies 5.00µin (0.127µm) gold plating on mating contacts. The 3M substitute specifies 10.0µin (0.25µm), and the Samtec substitute specifies 10.0µin (0.25µm). These variations represent acceptable manufacturing tolerances and do not affect electrical performance or contact reliability in standard applications.

Q: Are there any moisture sensitivity considerations for these substitutes?

A: All three connectors are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage, handling, or assembly.