TE Connectivity 1-104427-4 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-104427-4 is a vertical rectangular connector header from the AMPMODU Mod II series, designed for through-hole board-to-board or cable applications. This 16-position connector operates at 3A current rating and 30VAC voltage rating with a 0.100" (2.54mm) pitch configuration. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

1-104427-4

TE Connectivity AMP ConnectorsIn Stock: 8741-104427-4 Datasheet

Current PartRFQ

6-146276-6

TE Connectivity AMP ConnectorsIn Stock: 30786-146276-6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1-104427-4 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Contact type (Male Pin)
• Number of positions (16)
• Mating pitch (0.100" / 2.54mm)
• Current rating (3A minimum)
• Operating temperature range (-65°C ~ 105°C)
• Contact finish on mating surface (Gold)

Mechanical Compatibility Parameters:

• Connector type (Header, Breakaway)
• Mounting type (Through Hole)
• Shrouding (Unshrouded)
• Contact shape (Square)
• Insulation height (0.090" / 2.29mm)

Compliance Parameters:

• Material flammability rating (UL94 V-0)
• Moisture sensitivity level (MSL 1)

The substitute part 6-146276-6 maintains all critical electrical and mechanical parameters required for direct functional replacement. Differences in insulation material (Liquid Crystal Polymer versus Thermoplastic), contact post finish (Tin versus Tin-Lead), and product status (Active versus Obsolete) do not affect electrical or mechanical compatibility in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 6-146276-6 is the direct functional equivalent for the obsolete 1-104427-4 rectangular connector header. Selection of the substitute part is based on the following engineering criteria:

Product Status Consideration: The main part 1-104427-4 is classified as obsolete. The substitute 6-146276-6 maintains active production status, ensuring long-term availability and supply chain continuity for new designs and production runs.

Compliance and Certification: The substitute part 6-146276-6 is ROHS3 compliant, meeting current regulatory requirements for electronic components in most jurisdictions. The main part is RoHS non-compliant, making the substitute the appropriate choice for applications subject to RoHS directives. Both parts maintain identical UL94 V-0 flammability ratings and MSL 1 moisture sensitivity levels.

Electrical and Mechanical Equivalence: All critical electrical parameters are identical: 16-position configuration, 0.100" (2.54mm) mating pitch, 3A current rating, -65°C to 105°C operating temperature range, and gold-plated mating contacts. Mechanical dimensions are equivalent within standard manufacturing tolerances. Contact post length variation (0.120" versus 0.125") and overall contact length variation (0.528" versus 0.533") fall within acceptable tolerance ranges for through-hole solder termination applications.

Material and Termination Compatibility: The substitute part uses Liquid Crystal Polymer (LCP) insulation material instead of Thermoplastic, providing superior dimensional stability and thermal performance while maintaining identical flammability ratings. The substitute supports solder termination exclusively, whereas the main part supports both press-fit and solder termination. For applications requiring solder termination only, this represents no functional limitation.

Regulatory and Export Classification: Both parts share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, ensuring consistent export and import compliance.

Frequently Asked Questions (FAQ)

Q: Can the 6-146276-6 substitute directly replace the 1-104427-4 in existing designs?

A: Yes. The 6-146276-6 maintains identical electrical and mechanical specifications for all critical parameters: 16-position configuration, 0.100" (2.54mm) pitch, 3A current rating, -65°C to 105°C operating temperature, and gold-plated mating contacts. The connector is mechanically and electrically interchangeable for board-to-board and cable applications using solder termination.

Q: What is the difference in insulation material, and does it affect performance?

A: The main part uses Thermoplastic insulation, while the substitute uses Liquid Crystal Polymer (LCP). Both materials meet UL94 V-0 flammability requirements. LCP provides superior dimensional stability, lower moisture absorption, and improved thermal performance. This material change does not affect electrical or mechanical compatibility in standard applications.

Q: Why does the substitute part have a different contact post length?

A: The substitute 6-146276-6 has a contact post length of 0.125" (3.18mm) compared to 0.120" (3.05mm) on the main part. This 0.005" (0.13mm) variation falls within standard manufacturing tolerances for through-hole connectors and does not affect solder joint quality or mechanical retention on printed circuit boards.

Q: Is the substitute part RoHS compliant?

A: Yes. The 6-146276-6 is ROHS3 compliant, meeting current regulatory requirements. The main part 1-104427-4 is RoHS non-compliant. For applications subject to RoHS directives, the substitute part is the required choice.

Q: Does the substitute support press-fit termination like the main part?

A: No. The substitute 6-146276-6 supports solder termination only, whereas the main part supports both press-fit and solder termination. For applications requiring solder termination exclusively, this represents no functional limitation. Applications requiring press-fit termination must retain the original part or identify alternative solutions.

Q: What is the voltage rating for the substitute part?

A: The voltage rating for the 6-146276-6 is not specified in the technical documentation. The main part is rated for 30VAC. For applications requiring confirmed voltage specifications, contact the manufacturer directly. The substitute part is suitable for standard low-voltage applications consistent with the 3A current rating and connector design.

Q: Are there packaging differences between the main part and substitute?

A: The main part 1-104427-4 packaging is not specified. The substitute 6-146276-6 is supplied in bulk packaging. Packaging format does not affect electrical or mechanical performance and is determined by procurement and inventory requirements.

Q: What is the current inventory status for the substitute part?

A: The substitute part 6-146276-6 has 3025 pieces in new original stock, compared to 837 pieces for the obsolete main part. The substitute's active production status and higher inventory levels provide improved supply chain reliability for ongoing production requirements.