TE Connectivity AMP Connectors 55558-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 55558-3 is a 10 Pin Screw Terminal Power Tap connector with 6-32 screw size, designed for through-hole PCB mounting. This component features solder termination and tin-lead contact finish on copper contacts. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

55558-3

TE Connectivity AMP ConnectorsIn Stock: 91355558-3 Datasheet

Current PartRFQ

5055558-3

TE Connectivity AMP ConnectorsIn Stock: 38595055558-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 5055558-3 qualifies as a direct equivalent based on the following critical parameters that determine substitution compatibility:

Matching Parameters:

• Terminal Type: Screw Terminal, Power Tap
• Screw Size: 6-32
• Number of Pins: 10
• Mounting Type: Through Hole
• Contact Material: Copper Alloy (compatible with copper specification)
• Features: Screw not Included

The 5055558-3 maintains functional and mechanical compatibility with the obsolete 55558-3 while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 5055558-3 serves as the active equivalent for the obsolete 55558-3. Selection of the substitute part is based on the following engineering criteria:

Product Status: The 55558-3 is obsolete and no longer manufactured. The 5055558-3 is an active product with current manufacturing support and availability.

Compliance and Certifications: The 5055558-3 holds ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for electronic components. The original 55558-3 carries undefined compliance status due to its obsolete classification.

Mechanical and Electrical Compatibility: Both parts maintain identical screw terminal configuration (6-32), pin count (10), and through-hole mounting specification. The substitute part provides a rated current capacity of 25 A, offering defined electrical performance parameters.

Termination Method Difference: The original part uses solder termination while the substitute employs press-fit termination. This represents a manufacturing process change within the same product family and does not affect functional compatibility in through-hole PCB applications.

Frequently Asked Questions (FAQ)

Q: Can the 5055558-3 directly replace the 55558-3 in existing designs?

A: Yes. Both parts share identical terminal type, screw size (6-32), pin count (10), and through-hole mounting configuration. The mechanical and electrical interface specifications are equivalent.

Q: What is the difference between solder and press-fit termination in these parts?

A: The 55558-3 uses solder termination, requiring wave or reflow soldering during PCB assembly. The 5055558-3 uses press-fit termination, which engages with PCB plated through-holes through mechanical insertion. Both methods provide reliable electrical connections in through-hole applications.

Q: Does the contact finish change affect performance?

A: The 55558-3 features tin-lead finish while the 5055558-3 features tin finish. Both provide adequate corrosion resistance and electrical conductivity for screw terminal applications. The tin finish on the substitute part aligns with current RoHS3 compliance requirements.

Q: What is the current rating for these parts?

A: The 5055558-3 is rated for 25 A continuous current. The original 55558-3 does not specify a current rating in available documentation.

Q: Are there packaging differences between these parts?

A: The 5055558-3 is supplied in box packaging. Packaging specifications for the 55558-3 are not documented.

Q: Why is the 55558-3 obsolete?

A: The 55558-3 has been discontinued by TE Connectivity AMP Connectors. The 5055558-3 represents the current active product line continuation with enhanced compliance certifications and manufacturing support.