Amphenol ICC 66226-004 FFC Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66226-004 is a 4-position FFC (Flat Flexible Cable) connector header with 0.100" (2.54mm) pitch, designed for free-hanging in-line applications. This component features IDC (Insulation Displacement Contact) termination and is rated for 500V operation across -65°C to 105°C. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and procurement planning.

Substiute Parts

66226-004

Amphenol ICC (FCI)In Stock: 76266226-004 Datasheet

Current PartRFQ

66226-004LF

Amphenol ICC (FCI)In Stock: 256766226-004LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 66226-004 is determined by the following critical parameters:

• Connector Configuration: 4 positions at 0.100" (2.54mm) pitch
• Connector Type: Header for FFC termination
• Mounting Style: Free hanging in-line orientation
• Electrical Ratings: 500V voltage and 2A current capacity
• Temperature Range: -65°C to 105°C operational limits
• Series Compatibility: Clincher™ series

The substitute part 66226-004LF maintains all core electrical and mechanical parameters required for functional equivalence. Differences exist in termination method (solder vs. IDC), FFC thickness tolerance, locking features, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 66226-004LF serves as the direct active substitute for the obsolete 66226-004. Selection between these parts depends on application-specific requirements:

Use 66226-004LF when:

• New designs or redesigns are being implemented
• RoHS compliance is required for the end application
• Solder termination is compatible with PCB assembly processes
• Active product support and availability are priorities

Use 66226-004 only when:

• Legacy systems require exact original component matching
• Existing inventory must be consumed
• IDC termination is a mandatory design constraint

The 66226-004LF offers superior compliance status (RoHS Compliant vs. non-compliant) and active product status, making it the preferred choice for new procurement. Both parts maintain identical electrical ratings, temperature ranges, and core mechanical dimensions within the Clincher™ series.

Frequently Asked Questions (FAQ)

Q: Can 66226-004LF directly replace 66226-004 in existing assemblies?

A: Functional replacement is possible if the PCB assembly process can accommodate solder termination instead of IDC. The connector footprint, pitch, and electrical characteristics are identical. Mechanical fit and assembly method compatibility must be verified for your specific application.

Q: What is the difference between IDC and solder termination?

A: IDC (Insulation Displacement Contact) termination on the 66226-004 pierces the cable insulation without stripping. Solder termination on the 66226-004LF requires soldering the cable conductors to PCB pads. Both methods achieve equivalent electrical connections; selection depends on assembly capability and design requirements.

Q: Are there thickness differences between these parts?

A: Yes. The 66226-004 accommodates 0.33mm FFC thickness, while the 66226-004LF is specified for 0.30mm thickness. Verify your cable thickness matches the selected connector to ensure proper contact engagement.

Q: Does the 66226-004LF include locking features?

A: Yes. The 66226-004LF includes Flip Lock and Backlock features, plus Zero Insertion Force (ZIF) functionality. The 66226-004 does not specify these features. These additions improve connector reliability and ease of assembly.

Q: Why is RoHS compliance important for this substitution?

A: RoHS compliance affects regulatory acceptance in many markets and end-use applications. The 66226-004LF is RoHS Compliant, while the 66226-004 is not. For new designs targeting regulated markets, the 66226-004LF is the appropriate choice.

Q: Is packaging different between these parts?

A: Yes. The 66226-004 is supplied in standard packaging, while the 66226-004LF is supplied in Tray packaging. Packaging differences do not affect electrical or mechanical performance but may impact handling and storage procedures.