TE Connectivity AMP Connectors 146257-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 146257-2 is a rectangular connector header designed for through-hole mounting applications. This connector is a vertical 4-position header with 0.100" (2.54mm) pitch spacing, part of the AMPMODU Mod II series. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The substitute part 5-146257-2 provides functional equivalence with updated product status and improved compliance characteristics.

Substiute Parts

146257-2

TE Connectivity AMP ConnectorsIn Stock: 925146257-2 Datasheet

Current PartRFQ

5-146257-2

TE Connectivity AMP ConnectorsIn Stock: 7145-146257-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 146257-2 with the active equivalent 5-146257-2 is based on identical electrical and mechanical parameters across all critical dimensions and performance specifications. Both parts maintain the same connector type (Header, Breakaway), contact configuration (4-position, 2-row, male pin), pitch spacing (0.100"), mounting method (through-hole solder termination), and contact geometry (square shape, 0.230" mating length, 0.120" post length).

The substitution is valid based on the following matching parameters:

• Connector Type: Header, Breakaway
• Number of Positions and Rows: 4 positions, 2 rows
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Termination: Solder
• Contact Length - Mating: 0.230" (5.84mm)
• Contact Length - Post: 0.120" (3.05mm)
• Overall Contact Length: 0.440" (11.18mm)
• Insulation Height: 0.090" (2.29mm)
• Contact Shape: Square
• Contact Finish - Mating: Gold
• Contact Material: Copper Alloy
• Insulation Material: Liquid Crystal Polymer (LCP)
• Operating Temperature: -65°C ~ 105°C
• Current Rating: 3A
• Material Flammability Rating: UL94 V-0
• Insulation Color: Black
• Moisture Sensitivity Level: 1 (Unlimited)

The primary distinction between the main part and substitute is product status (obsolete versus active) and RoHS compliance status, with a minor variation in post contact finish specification.

Parameter Comparison

Engineering Selection Recommendations

The 5-146257-2 is the direct active equivalent for the obsolete 146257-2. Selection of the substitute part is based on the following engineering criteria:

Product Status: The main part 146257-2 carries obsolete status, indicating discontinued manufacturing and limited availability. The substitute 5-146257-2 maintains active product status, ensuring ongoing availability and supply chain continuity.

Compliance Status: The substitute part 5-146257-2 is RoHS Compliant, whereas the main part is RoHS non-compliant. This compliance upgrade aligns with current regulatory requirements for electronic components in regulated markets and applications.

Electrical and Mechanical Equivalence: All critical electrical and mechanical parameters are identical between the two parts, including connector type, contact configuration, pitch spacing, mounting method, contact geometry, operating temperature range, and current rating. The parts are mechanically and electrically interchangeable.

Contact Finish Variation: The substitute part specifies Tin finish for post contacts, compared to Tin-Lead finish on the main part. This represents a lead-free transition aligned with RoHS compliance requirements and does not affect functional compatibility or performance within the specified operating parameters.

Packaging: The substitute part is supplied in Bulk packaging, compared to the main part with unspecified packaging. This distinction affects procurement and inventory management but does not impact component functionality.

For new designs and production applications, the 5-146257-2 is the appropriate selection. For legacy system maintenance requiring the exact original part, the 146257-2 remains available in current inventory (910 pieces).

Frequently Asked Questions (FAQ)

Q: Are the 146257-2 and 5-146257-2 mechanically interchangeable?

A: Yes. Both parts share identical connector type (Header, Breakaway), position count (4 positions, 2 rows), pitch spacing (0.100"), mounting method (through-hole solder), and all contact dimensions. They are direct mechanical substitutes.

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

A: The main part 146257-2 uses Tin-Lead finish on post contacts, while the substitute 5-146257-2 uses Tin finish. This difference reflects lead-free manufacturing standards. Both finishes provide equivalent electrical performance and solder joint reliability within the specified operating parameters.

Q: Why is the 146257-2 listed as obsolete?

A: Obsolete status indicates the part has been discontinued by the manufacturer. The active equivalent 5-146257-2 replaces it in the product line, offering the same functionality with updated compliance and manufacturing standards.

Q: Does RoHS compliance affect component performance?

A: RoHS compliance addresses material composition and manufacturing processes, not electrical or mechanical performance. The 5-146257-2 maintains identical electrical specifications and operating characteristics to the 146257-2 while meeting RoHS requirements.

Q: Can the 146257-2 be used in new designs?

A: The 146257-2 is available in current inventory (910 pieces). However, for new designs, the 5-146257-2 is recommended due to active product status, RoHS compliance, and assured long-term availability.

Q: What is the significance of the packaging difference?

A: The main part 146257-2 has unspecified packaging, while the substitute 5-146257-2 is supplied in Bulk packaging. This affects procurement quantities and inventory management but does not impact component functionality or performance.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts maintain identical operating temperature range (-65°C ~ 105°C) and current rating (3A). Electrical and thermal performance characteristics are equivalent.

Q: What is the contact finish thickness specification?

A: Mating contact finish (gold) is 30.0µin (0.76µm) on both parts. Post contact finish thickness is 100.0µin (2.54µm) on both parts, regardless of the finish material composition difference.

Q: Is the 146257-2 suitable for applications requiring RoHS compliance?

A: No. The 146257-2 is RoHS non-compliant. Applications requiring RoHS compliance must use the 5-146257-2 substitute.

Q: What is the moisture sensitivity level?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or use.