TE Connectivity AMP Connectors 55556-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 55556-4 is a 10 Pin Screw Terminal with Power Tap configuration, designed for through-hole PCB mounting. This component features a 6-32 screw size and solder termination with low-profile construction. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure procurement availability for new production runs and field replacements.

Substiute Parts

55556-4

TE Connectivity AMP ConnectorsIn Stock: 89355556-4 Datasheet

Current PartRFQ

9-55556-0

TE Connectivity AMP ConnectorsIn Stock: 59749-55556-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 55556-4 is determined by strict equivalence across the following critical parameters:

• Terminal Configuration: Screw Terminal, Power Tap type with identical functional design
• Pin Count: 10 pins maintained across all substitutes
• Screw Specification: 6-32 screw size for mechanical and electrical compatibility
• Mounting Architecture: Through-hole PCB mounting without deviation
• Termination Method: Solder termination for circuit board integration
• Contact Material: Copper construction for electrical conductivity
• Insulation Composition: Polyamide (PA), Nylon material specification
• Form Factor: Low-profile design maintained for space-constrained applications

The substitute part 9-55556-0 maintains full electrical and mechanical compatibility with the obsolete 55556-4 while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 9-55556-0 serves as the direct active equivalent for the obsolete 55556-4. Selection of this substitute is based on the following engineering criteria:

Product Status Alignment: The 9-55556-0 maintains active product status with established supply chain availability, whereas the 55556-4 is obsolete and subject to inventory depletion.

Compliance Certification: The 9-55556-0 carries RoHS Compliant certification, meeting current regulatory requirements for electronic component manufacturing and environmental standards. The original 55556-4 lists RoHS status as not applicable, reflecting its legacy classification.

Electrical and Mechanical Equivalence: Both parts maintain identical specifications across terminal type, pin configuration, screw size, mounting method, and termination approach. The contact material and insulation composition remain unchanged, ensuring functional interchangeability.

Contact Finish Consideration: The 9-55556-0 specifies Tin contact finish compared to the Tin-Lead finish of the 55556-4. This represents a compliance-driven evolution consistent with lead-free manufacturing standards and does not compromise electrical performance or mechanical compatibility.

Export Classification: Both parts share identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications, maintaining consistent regulatory treatment for procurement and logistics.

Frequently Asked Questions (FAQ)

Q: Can the 9-55556-0 directly replace the 55556-4 in existing designs?

A: Yes. The 9-55556-0 maintains full electrical and mechanical compatibility with the 55556-4 across all critical parameters: 10-pin configuration, 6-32 screw size, through-hole mounting, solder termination, copper contacts, and polyamide insulation. The parts are functionally interchangeable.

Q: What is the significance of the contact finish difference between Tin-Lead and Tin?

A: The contact finish difference reflects manufacturing evolution toward lead-free compliance. The Tin finish of the 9-55556-0 meets RoHS requirements while maintaining equivalent electrical conductivity and contact reliability for power tap applications.

Q: Why is the 55556-4 classified as obsolete?

A: The 55556-4 is obsolete due to its Tin-Lead contact finish and non-compliant RoHS status. The 9-55556-0 represents the current active production equivalent with updated compliance certifications.

Q: Are there packaging differences between these parts?

A: The 55556-4 packaging is listed as unspecified, while the 9-55556-0 is packaged in Box format. This packaging distinction does not affect electrical or mechanical performance and relates only to distribution and handling.

Q: What inventory considerations apply to these parts?

A: The 55556-4 has 820 pieces in stock as new original inventory. The 9-55556-0 has 5905 pieces in stock, providing significantly greater availability for procurement planning and production scheduling.

Q: Do both parts share the same base product number?

A: Yes. Both the 55556-4 and 9-55556-0 share base product number 55556, confirming their design lineage and functional equivalence within the TE Connectivity AMP Connectors product family.

Q: Are there any export or regulatory restrictions on these parts?

A: Both parts carry identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications, indicating equivalent export control and tariff treatment. No differential restrictions apply between the two parts.