Amphenol ICC 51866-016 Backplane Connector Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51866-016 is a 25-position receptacle connector featuring female blade sockets for board edge mounting with through-hole, right-angle termination. This connector is part of the PwrBlade® series and is designed for power distribution applications in backplane systems. The product is currently obsolete, making identification of suitable substitute components essential for system redesign, maintenance, and procurement planning.

Substiute Parts

51866-016

Amphenol ICC (FCI)In Stock: 111851866-016 Datasheet

Current PartRFQ

51866-016LF

Amphenol ICC (FCI)In Stock: 92651866-016LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 51866-016 is based on the following critical parameters that define functional compatibility within the PwrBlade® connector family:

Primary Substitution Criteria:

• Manufacturer: Amphenol ICC (FCI)
• Series: PwrBlade®
• Connector Type: Receptacle, Female Blade Sockets
• Connector Style: Blade Power
• Mounting Type: Board Edge, Through Hole, Right Angle
• Termination Technology: Press-Fit compatible
• Contact Finish: Gold or Gold, GXT™
• Material Flammability: UL94 V-0
• Operating Temperature Range: -20°C ~ 105°C

The identified substitute part 51866-016LF maintains compatibility across these core parameters while offering enhanced specifications including active product status and RoHS compliance. Position count variation (25 vs. 42) reflects different application requirements within the same connector family architecture.

Parameter Comparison

Engineering Selection Recommendations

The 51866-016LF serves as the active substitute for the obsolete 51866-016. Selection between these parts depends on system requirements and regulatory compliance mandates:

51866-016-016LF Selection Factors:

• Active product status ensures long-term availability and manufacturing support
• RoHS compliance satisfies regulatory requirements for new designs and applications subject to RoHS directives
• Increased position count (42 vs. 25) accommodates expanded signal and power distribution requirements
• Multi-row configuration (4 rows vs. 1 row) provides higher density interconnection
• Dual termination support (Press-Fit and Solder) offers installation flexibility

51866-016 Considerations:

• Applicable only to legacy system maintenance where RoHS non-compliance is acceptable
• Single-row, 25-position configuration matches original design specifications
• Obsolete status limits future procurement and manufacturing availability

Frequently Asked Questions (FAQ)

Q: Can the 51866-016LF directly replace the 51866-016 in existing designs?

A: The 51866-016LF maintains core connector architecture compatibility (PwrBlade® series, receptacle type, blade power style, board edge mounting, press-fit termination, and operating specifications). However, the increased position count (42 vs. 25) and multi-row configuration (4 vs. 1) require PCB layout redesign. Direct mechanical and electrical substitution is not possible without board modification.

Q: What are the key differences in termination between these parts?

A: The 51866-016 uses press-fit termination exclusively. The 51866-016LF supports both press-fit and solder termination, providing installation method flexibility depending on manufacturing process requirements.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance in the 51866-016LF reflects material composition changes but does not alter electrical performance specifications. Both parts maintain identical contact finish thickness (30.0µin), gold plating, and operating temperature range (-20°C ~ 105°C).

Q: Are these connectors interchangeable at the contact level?

A: Both parts use identical female blade socket contact technology with matching gold finish specifications. Contact compatibility exists at the individual contact level, but system-level substitution requires accommodation of position count and row configuration differences.

Q: What packaging considerations apply to procurement?

A: The 51866-016 packaging is not specified in available documentation. The 51866-016LF is supplied in tray packaging. Verify packaging requirements with procurement specifications before ordering.

Q: Is the 51866-016 still available for purchase?

A: The 51866-016 is obsolete. Current inventory availability is limited to existing stock (1054 pcs reported). The 51866-016LF is active with current manufacturing support and documented inventory (831 pcs).