TE Connectivity 104345-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 104345-1 is a rectangular connector header designed for through-hole mounting applications. This connector is a vertical 3-position header with 0.100" (2.54mm) pitch spacing, commonly used in board-to-board and cable interconnection applications. The part operates within the AMPMODU Mod II series and features male pin contacts with gold-plated mating surfaces and tin-lead plated posts.

The 104345-1 carries an obsolete product status, making identification of equivalent and substitute parts essential for ongoing design support, maintenance, and production continuity. Active alternatives within the same connector family provide functional equivalence while offering improved compliance and availability.

Substiute Parts

104345-1

TE Connectivity AMP ConnectorsIn Stock: 18959104345-1 Datasheet

Current PartRFQ

5-146280-3

TE Connectivity AMP ConnectorsIn Stock: 2757145-146280-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 104345-1 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility:

• Connector type (Header, Breakaway)
• Contact type (Male Pin)
• Pitch spacing (0.100" / 2.54mm)
• Number of positions (3)
• Number of rows (1)
• Mounting type (Through Hole)
• Contact geometry and dimensions

Electrical Compatibility:

• Current rating (3A)
• Operating temperature range (-65°C ~ 105°C)
• Contact finish material (Gold mating surface)
• Material flammability rating (UL94 V-0)

Functional Compatibility:

• Style (Board to Board or Cable)
• Fastening type (Push-Pull)
• Shrouding (Unshrouded)

The substitute part 5-146280-3 maintains full mechanical and electrical equivalence across all critical parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 104345-1 is classified as obsolete, while the substitute part 5-146280-3 maintains active product status. Active status ensures continued manufacturing support, availability, and technical documentation from TE Connectivity AMP Connectors.

Regulatory Compliance: The substitute part 5-146280-3 is ROHS3 compliant and REACH unaffected, compared to the main part which is RoHS non-compliant and REACH affected. For applications subject to European Union regulations or customer requirements mandating RoHS3 compliance, the substitute part satisfies these requirements.

Material Composition: The substitute part uses Liquid Crystal Polymer (LCP) for insulation material compared to thermoplastic in the main part. LCP provides enhanced thermal stability and dimensional consistency, particularly in high-temperature applications within the specified operating range of -65°C to 105°C.

Contact Finish: The substitute part features tin-plated posts compared to tin-lead plating in the main part. Tin plating aligns with lead-free manufacturing standards and provides equivalent solderability and electrical performance for the specified 3A current rating.

Mechanical and Electrical Equivalence: All critical mechanical dimensions, electrical ratings, and functional parameters remain identical between the main part and substitute. Direct substitution is supported for new designs and production transitions.

Frequently Asked Questions (FAQ)

Q: Can the 5-146280-3 be used as a direct replacement for the 104345-1 in existing designs?

A: Yes. The 5-146280-3 maintains identical mechanical dimensions, pitch spacing (0.100" / 2.54mm), contact geometry, and electrical ratings (3A, -65°C to 105°C operating range). Both parts are from the AMPMODU Mod II series and feature identical contact configurations. Direct substitution is supported without design modification.

Q: What are the differences between the main part and substitute?

A: The primary differences are product status, regulatory compliance, and material composition. The 104345-1 is obsolete with RoHS non-compliant status, while the 5-146280-3 is active and ROHS3 compliant. The insulation material differs (thermoplastic versus Liquid Crystal Polymer), and the post contact finish is tin versus tin-lead. These differences do not affect mechanical or electrical compatibility.

Q: Are there packaging differences between these parts?

A: Both parts are supplied in bulk packaging. The 104345-1 has 18,918 pieces in stock, while the 5-146280-3 has 275,691 pieces in stock. Packaging format and handling requirements are equivalent.

Q: Does the change from tin-lead to tin plating affect soldering performance?

A: No. Tin plating in the 5-146280-3 provides equivalent solderability and electrical performance for the specified 3A current rating and operating temperature range. Tin plating is compatible with standard lead-free solder processes.

Q: Is the Liquid Crystal Polymer (LCP) insulation material compatible with the original thermoplastic design?

A: Yes. LCP provides enhanced thermal stability and dimensional consistency compared to thermoplastic. Both materials meet the UL94 V-0 flammability rating and maintain identical insulation height (0.090" / 2.29mm) and electrical properties across the -65°C to 105°C operating range.

Q: What is the significance of ROHS3 compliance for the substitute part?

A: ROHS3 compliance indicates the substitute part meets European Union Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials. This compliance is required for products sold in EU markets and is increasingly mandated by global customers and supply chain requirements.

Q: Are both parts suitable for board-to-board and cable interconnection applications?

A: Yes. Both the 104345-1 and 5-146280-3 are classified as board-to-board or cable style connectors with unshrouded, push-pull fastening. Both support identical application configurations.

Q: What is the REACH status difference between these parts?

A: The 104345-1 is REACH affected, indicating it contains substances of very high concern (SVHC) listed under the EU REACH regulation. The 5-146280-3 is REACH unaffected, indicating it does not contain listed SVHC substances. For applications requiring REACH compliance, the substitute part is the appropriate selection.