66564-840 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66564-840 is a 40-position rectangular receptacle connector with IDC (Insulation Displacement Contact) termination and gold plating. This connector is designed for ribbon cable applications with a 0.100" (2.54mm) pitch in a 2-row configuration. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing procurement and system maintenance.

Substiute Parts

66564-840

Amphenol ICC (FCI)In Stock: 107266564-840 Datasheet

Current PartRFQ

66564-840LF

Amphenol ICC (FCI)In Stock: 107366564-840LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 66564-840LF serves as a direct substitute for the 66564-840 based on the following critical parameters:

• Identical connector type, contact configuration, and position count (40-position receptacle)
• Matching pitch and row spacing (0.100" / 2.54mm)
• Identical cable termination method (IDC for ribbon cable)
• Matching contact finish specification (Gold, GXT™)
• Identical mechanical features (Feed Through, Polarizing Key, Strain Relief)
• Same series designation (Quickie™)
• Identical base product number (66564)

The primary distinction is product status: the 66564-840 is obsolete, while the 66564-840LF is active. The 66564-840LF also carries RoHS compliance certification, whereas the original part is non-compliant.

Parameter Comparison

Engineering Selection Recommendations

The 66564-840LF is the appropriate selection for new designs and ongoing procurement due to its active product status and RoHS compliance certification. The electrical and mechanical specifications are identical to the 66564-840, ensuring direct functional compatibility in existing applications.

For legacy systems currently using the 66564-840, the 66564-840LF provides a compliant replacement without design modification. Both parts share identical connector geometry, contact configuration, and termination methodology, supporting direct substitution in ribbon cable assemblies.

Frequently Asked Questions (FAQ)

Q: Can the 66564-840LF directly replace the 66564-840 in existing designs?

A: Yes. Both parts are mechanically and electrically identical across all critical parameters: 40-position receptacle configuration, 0.100" pitch, IDC termination for ribbon cable, gold contact finish, and identical mechanical features. Direct substitution is supported without design changes.

Q: What is the primary difference between these two part numbers?

A: The 66564-840 is obsolete, while the 66564-840LF is an active product. Additionally, the 66564-840LF carries RoHS compliance certification, whereas the original part does not. All functional specifications remain identical.

Q: Are there packaging differences between these parts?

A: The 66564-840LF is supplied in tube packaging. Packaging specifications for the 66564-840 were not provided in the available data.

Q: Do these connectors support the same ribbon cable specifications?

A: Yes. Both parts are designed for IDC termination with ribbon cable and share identical pitch (0.100" / 2.54mm) and row spacing specifications.

Q: What is the contact finish specification for both parts?

A: Both parts feature gold plating with GXT™ treatment at 30.0µin (0.76µm) thickness, providing equivalent electrical performance and corrosion resistance.