66432-050LF Equivalent & Substitute Parts

Part Overview

The 66432-050LF is a 50-position rectangular receptacle connector manufactured by Amphenol ICC (FCI) from the Quickie™ series. This connector is designed for IDC (Insulation Displacement Contact) termination with ribbon cable in 28-30 AWG wire gauges. The part is currently obsolete, making identification of active equivalent components essential for ongoing system support and new design implementations.

Substiute Parts

66432-050LF

Amphenol ICC (FCI)In Stock: 108066432-050LF Datasheet

Current PartRFQ

71600-050LF

Amphenol ICC (FCI)In Stock: 201171600-050LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 71600-050LF serves as the manufacturer-recommended substitute for the obsolete 66432-050LF. Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (50)
• Pitch and row spacing (0.100" / 2.54mm)
• Cable termination method (IDC)
• Wire gauge compatibility (28-30 AWG)
• Contact finish material and thickness (Gold, 30.0µin)
• Functional features (Feed Through, Polarizing Key, Strain Relief)

The 71600-050LF maintains identical electrical and mechanical specifications to the 66432-050LF, enabling direct substitution in applications requiring 50-position IDC ribbon cable connectors.

Parameter Comparison

Engineering Selection Recommendations

The 71600-050LF is the appropriate selection for applications currently using or requiring 50-position IDC rectangular receptacle connectors. As an active product from the same manufacturer and series, it provides continuity for legacy system support and new designs.

The 71600-050LF offers additional compliance advantages over the obsolete 66432-050LF: it is RoHS Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component procurement. The active product status ensures ongoing availability and supply chain reliability.

All electrical and mechanical parameters remain equivalent between the two parts, confirming direct substitution capability without design modification.

Frequently Asked Questions (FAQ)

Q: Can the 71600-050LF directly replace the 66432-050LF in existing applications?

A: Yes. Both connectors share identical specifications for connector type, position count, pitch, row spacing, IDC termination, wire gauge, contact finish, and functional features. Direct substitution is supported without design changes.

Q: What is the primary difference between these two parts?

A: The 66432-050LF is obsolete, while the 71600-050LF is an active product. The 71600-050LF also carries RoHS Compliance and REACH Unaffected certifications. Both maintain the same electrical and mechanical performance.

Q: Are there packaging differences between the 66432-050LF and 71600-050LF?

A: The 71600-050LF is supplied in Tube packaging. Packaging format does not affect connector compatibility or performance in the application.

Q: What wire gauges are compatible with the 71600-050LF?

A: The connector accommodates 28-30 AWG ribbon cable through IDC termination.

Q: Does the 71600-050LF maintain the same contact finish specifications?

A: Yes. Both parts feature gold contact finish at 30.0µin (0.76µm) thickness, ensuring equivalent electrical performance and reliability.