Amphenol ICC 51890-002 PwrBlade® Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51890-002 is a 45-position backplane connector header featuring male pins and blades in a right-angle, board edge, through-hole configuration. This connector is part of the PwrBlade® series and is designed for applications requiring integrated signal and power distribution on a single connector interface. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing system support and new design implementations.

Substiute Parts

51890-002

Amphenol ICC (FCI)In Stock: 75051890-002 Datasheet

Current PartRFQ

51890-002LF

Amphenol ICC (FCI)In Stock: 111451890-002LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 51890-002 is determined by strict equivalence across the following critical parameters:

• Connector Type & Style: Header with male pins and blades, blade power configuration
• Position Count & Loading: 45 total positions with 44 positions loaded
• Pitch & Row Configuration: 0.100" (2.54mm) pitch with 4 rows
• Mounting & Termination: Board edge, through-hole, right-angle orientation with solder termination
• Contact Layout: 32 signal contacts and 13 power contacts
• Contact Finish Specification: Gold or Gold, GXT™ at 30.0µin (0.76µm) thickness
• Environmental Ratings: UL94 V-0 flammability, -20°C to 105°C operating range, MSL 1

The substitute part 51890-002LF maintains identical electrical and mechanical specifications while differing in product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 51890-002LF serves as the direct active equivalent to the obsolete 51890-002. Both parts are manufactured by Amphenol ICC within the PwrBlade® series and maintain identical electrical and mechanical specifications across all critical parameters including position count, pitch, mounting configuration, contact layout, and environmental ratings.

The primary distinction between these parts is product lifecycle status and compliance posture. The 51890-002LF is classified as active and carries RoHS compliance certification, whereas the 51890-002 is obsolete and RoHS non-compliant. For new designs or systems requiring ongoing component availability, the 51890-002LF is the appropriate selection. For legacy system maintenance where the original 51890-002 specification must be maintained, the 51890-002LF provides full functional and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Are the 51890-002 and 51890-002LF mechanically interchangeable?

A: Yes. Both parts share identical connector type, position count, pitch, row configuration, mounting style, and termination method. They are mechanically and electrically interchangeable in all applications.

Q: What is the significance of the "LF" suffix in the part number 51890-002LF?

A: The "LF" designation indicates lead-free construction, which aligns with RoHS compliance requirements. This is the primary differentiator between the two part numbers.

Q: Can the 51890-002LF be used as a direct replacement in systems originally designed for the 51890-002?

A: Yes. The 51890-002LF maintains all electrical and mechanical specifications of the 51890-002, including contact layout (32 signal, 13 power), contact finish (Gold or Gold, GXT™), and environmental ratings (UL94 V-0, -20°C to 105°C). It is a direct functional replacement.

Q: What packaging is available for the 51890-002LF?

A: The 51890-002LF is supplied in tray packaging.

Q: Are there any compliance differences between these parts that affect system certification?

A: The 51890-002LF is RoHS compliant and REACH affected, whereas the 51890-002 is RoHS non-compliant. Systems requiring RoHS compliance must use the 51890-002LF. Both parts carry identical UL94 V-0 flammability ratings and environmental specifications.