Amphenol ICC 66226-021 FFC Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66226-021 is a 21-position FFC (Flat Flexible Cable) connector header with 0.100" (2.54mm) pitch, designed for free-hanging in-line applications. This connector features IDC (Insulation Displacement Contact) termination and is rated for 500V and 2A operation across a temperature range of -65°C to 105°C. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and component procurement.

Substiute Parts

66226-021

Amphenol ICC (FCI)In Stock: 102066226-021 Datasheet

Current PartRFQ

66226-021LF

Amphenol ICC (FCI)In Stock: 75566226-021LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 66226-021 is determined by the following critical parameters:

• Connector Position Count: Must be 21 positions
• Pitch Specification: Must be 0.100" (2.54mm)
• Connector Type: Must be Header configuration
• Mounting Style: Must be Free Hanging (In-Line)
• Electrical Ratings: Voltage rating of 500V and current rating of 2A minimum
• Operating Temperature Range: Must support -65°C to 105°C
• Contact Material & Finish: Copper Nickel Alloy with Tin finish
• Housing Material: Thermoplastic construction
• Mating Cycle Rating: Minimum 100 cycles

The substitute part 66226-021LF maintains all critical electrical and mechanical parameters while offering improvements in product status, compliance certifications, and termination methodology.

Parameter Comparison

Engineering Selection Recommendations

The 66226-021LF is the direct substitute for the obsolete 66226-021. Selection of the substitute part is justified on the following engineering and compliance grounds:

Product Status: The 66226-021 is classified as obsolete, whereas the 66226-021LF maintains active product status with ongoing manufacturer support and availability.

Regulatory Compliance: The 66226-021LF is RoHS Compliant, meeting current environmental and regulatory requirements. The original part is RoHS non-compliant, presenting compliance risks in new designs and procurement cycles.

Electrical & Mechanical Equivalence: Both parts maintain identical electrical ratings (500V, 2A), operating temperature range (-65°C to 105°C), contact material (Copper Nickel Alloy with Tin finish), and mechanical configuration (21 positions, 0.100" pitch, free-hanging header).

Enhanced Features: The 66226-021LF incorporates Flip Lock and Backlock locking mechanisms, along with Zero Insertion Force (ZIF) functionality and solder retention features, providing improved mechanical reliability and assembly robustness compared to the IDC termination of the original part.

Termination Consideration: The substitute employs solder termination rather than IDC. This change requires PCB design modification to accommodate solder pads instead of IDC contact receptacles, but provides superior long-term connection reliability and reduced contact resistance.

Frequently Asked Questions (FAQ)

Q: Can the 66226-021LF be used as a direct drop-in replacement for the 66226-021?

A: Electrical and mechanical compatibility is confirmed across all critical parameters. However, termination methodology differs: the original uses IDC termination while the substitute uses solder termination. PCB design modification is required to accommodate solder pads instead of IDC receptacles.

Q: What are the key differences between the 66226-021 and 66226-021LF?

A: Primary differences include product status (obsolete vs. active), RoHS compliance (non-compliant vs. compliant), termination type (IDC vs. solder), locking features (none vs. Flip Lock and Backlock), and FFC thickness (0.33mm vs. 0.30mm). All electrical ratings and connector specifications remain identical.

Q: Are there any packaging differences between these parts?

A: The 66226-021 is supplied in standard packaging, while the 66226-021LF is supplied in Tray packaging. This difference does not affect electrical or mechanical performance.

Q: Does the 0.03mm difference in FFC thickness affect compatibility?

A: The FFC thickness specification applies to the cable interface, not the connector header itself. Both parts maintain the same 0.100" (2.54mm) pitch and 21-position configuration, ensuring mechanical compatibility with standard FFC cables.

Q: What is the significance of the Flip Lock and Backlock features on the substitute part?

A: These locking mechanisms provide positive cable retention and prevent accidental disconnection during operation. They enhance mechanical reliability compared to the non-locking configuration of the original part.

Q: Is the 66226-021LF suitable for new product designs?

A: Yes. The 66226-021LF is the active, RoHS-compliant equivalent and is the appropriate choice for new designs. The original 66226-021 should not be specified for new products due to its obsolete status and non-compliance with current environmental regulations.