TE Connectivity 7-146257-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 7-146257-5 is an active rectangular connector header designed for through-hole mounting applications. This 50-position, 2-row connector operates at 0.100" (2.54mm) pitch and supports board-to-board or cable interconnection with a 3A current rating. The connector features gold-plated mating contacts and tin-plated posts with solder termination. Equivalent substitute parts are necessary when primary inventory is unavailable, when alternative contact finishes or post lengths are required for specific application requirements, or when sourcing from alternative manufacturers is preferred.

Substiute Parts

7-146257-5

TE Connectivity AMP ConnectorsIn Stock: 22287-146257-5 Datasheet

Current PartRFQ

TSW-125-07-F-D

Samtec Inc.In Stock: 1631TSW-125-07-F-D Datasheet

SimilarRFQ

TSW-125-09-G-D

Samtec Inc.In Stock: 1012TSW-125-09-G-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 7-146257-5 is determined by the following critical parameters that must remain constant across all equivalent parts:

Fixed Parameters (Non-Negotiable):

• Number of Positions: 50
• 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
• Shrouding: Unshrouded
• Style: Board to Board or Cable
• Contact Shape: Square
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Allowable Differences):

• Contact Length - Post (0.100" to 0.400")
• Contact Finish - Post (Tin or Gold)
• Contact Finish Thickness - Mating (3.00µin to 30.0µin)
• Insulation Material (LCP or PBT)
• Insulation Height (0.090" to 0.100")
• Operating Temperature Range (extended ranges acceptable)
• Contact Material (Copper Alloy or Phosphor Bronze)
• Manufacturer (TE Connectivity or Samtec)

The substitute parts TSW-125-07-F-D and TSW-125-09-G-D from Samtec Inc. meet all fixed parameter requirements and are therefore electrically and mechanically compatible with the main part.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: TE Connectivity 7-146257-5

The TE Connectivity 7-146257-5 is the primary specification and maintains active product status with RoHS compliance. This part is suitable for applications requiring the specified operating temperature range of -65°C to 105°C and the LCP insulation material. The 0.120" (3.05mm) post length and 30.0µin gold plating thickness on mating contacts provide the baseline electrical and mechanical characteristics.

Substitute Option 1: Samtec TSW-125-07-F-D

The TSW-125-07-F-D is an active equivalent from Samtec Inc. with ROHS3 compliance and extended operating temperature range (-55°C to 125°C). This part features a slightly shorter post length (0.100" vs. 0.120") and reduced mating contact gold plating thickness (3.00µin vs. 30.0µin). The insulation material is PBT rather than LCP. This substitute is suitable for applications where the extended temperature range is beneficial and where the reduced post length and contact finish thickness are acceptable.

Substitute Option 2: Samtec TSW-125-09-G-D

The TSW-125-09-G-D is an active equivalent from Samtec Inc. with ROHS3 compliance and extended operating temperature range (-55°C to 125°C). This part features a significantly longer post length (0.400" vs. 0.120"), gold plating on both mating and post contacts, and PBT insulation material. This substitute is suitable for applications requiring extended post length for deeper PCB penetration or applications where gold-plated posts are specified.

All three parts maintain identical connector geometry, pitch, row spacing, contact type, mounting method, and flammability rating. Selection between these options depends on specific application requirements regarding post length, contact finish specifications, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can TSW-125-07-F-D and TSW-125-09-G-D be used interchangeably with the TE Connectivity 7-146257-5?

A: Both Samtec parts are electrically and mechanically compatible substitutes. However, they differ in post length and contact finish specifications. TSW-125-07-F-D has a shorter post (0.100" vs. 0.120"), while TSW-125-09-G-D has a longer post (0.400" vs. 0.120") and gold-plated posts instead of tin-plated. Selection depends on PCB thickness requirements and contact finish specifications for your application.

Q: What is the impact of the different insulation materials (LCP vs. PBT)?

A: The main part uses Liquid Crystal Polymer (LCP) insulation, while both Samtec substitutes use Polybutylene Terephthalate (PBT). Both materials meet UL94 V-0 flammability requirements and MSL 1 moisture sensitivity levels. PBT offers slightly different mechanical and thermal properties, but both are suitable for standard through-hole connector applications.

Q: Are there differences in current rating between these parts?

A: The main part specifies a 3A current rating. The Samtec substitutes do not list a current rating in the provided specifications. Verify current requirements with the connector manufacturer if current rating is a critical parameter for your application.

Q: How do the operating temperature ranges differ?

A: The TE Connectivity 7-146257-5 operates from -65°C to 105°C. Both Samtec substitutes operate from -55°C to 125°C, providing an extended upper temperature limit. If your application requires operation below -55°C, the TE Connectivity part is required.

Q: What is the significance of the mating contact gold plating thickness differences?

A: The main part specifies 30.0µin (0.76µm) gold plating on mating contacts. TSW-125-07-F-D specifies 3.00µin (0.076µm), and TSW-125-09-G-D specifies 10.0µin (0.25µm). Thicker gold plating generally provides enhanced corrosion resistance and contact durability. Applications in harsh environments may require the thicker plating of the main part.

Q: Are all three parts RoHS compliant?

A: Yes. The TE Connectivity 7-146257-5 is RoHS Compliant. Both Samtec parts are ROHS3 Compliant. All three parts meet RoHS requirements and are suitable for applications with RoHS compliance mandates.

Q: What is the difference between tin-plated and gold-plated posts?

A: The main part features tin-plated posts (100.0µin thickness). TSW-125-07-F-D also features tin-plated posts, while TSW-125-09-G-D features gold-plated posts (3.00µin thickness). Gold plating provides superior corrosion resistance and is preferred for applications with extended shelf life or harsh environmental exposure. Tin plating is suitable for standard applications with normal storage and environmental conditions.

Q: Can I use these parts in high-reliability applications?

A: All three parts maintain UL94 V-0 flammability ratings and MSL 1 moisture sensitivity levels, indicating suitability for standard reliability applications. For high-reliability or military applications, consult detailed qualification data and application-specific requirements from the respective manufacturers.

Q: What inventory levels are available for each part?

A: The TE Connectivity 7-146257-5 has 2182 pieces in stock. The Samtec TSW-125-07-F-D has 1610 pieces in stock. The Samtec TSW-125-09-G-D has 969 pieces in stock. Inventory levels may change; verify current availability with your supplier.