AK6-066C Equivalent & Substitute Parts

Part Overview

The AK6-066C is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole axial component provides 120V clamping at peak pulse current with a 6kA surge capacity. The part is currently active in production with 1037 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, procurement preferences, or application-specific certifications.

Substiute Parts

AK6-066C

Littelfuse Inc.In Stock: 1074AK6-066C Datasheet

Current PartRFQ

AK6E-066C

Eaton - Electronics DivisionIn Stock: 785AK6E-066C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AK6-066C is based on strict equivalence of the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 66V
• Voltage - Breakdown (Min): 72V
• Voltage - Clamping (Max) @ Ipp: 120V
• Current - Peak Pulse (10/1000µs): 6000A (6kA) (8/20µs)
• Bidirectional Channels: 1
• Type: Zener
• Mounting Type: Through Hole
• Package / Case: Axial, Right Angle Bend (24.15mm Center)
• Operating Temperature: -55°C ~ 125°C (TJ)

The AK6E-066C meets all these criteria and is classified as a manufacturer-recommended substitute. Both parts share identical electrical performance specifications and mechanical form factors, ensuring direct functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the AK6-066C and AK6E-066C are active production components with equivalent electrical and mechanical specifications. The AK6-066C carries ROHS3 compliance, while the AK6E-066C carries RoHS compliance. Both components meet MSL Level 1 requirements with unlimited moisture sensitivity ratings. Selection between these parts should be based on availability, procurement lead times, and application-specific compliance requirements. The AK6E-066C is designated for telecom applications, while the AK6-066C is specified for general-purpose use.

Frequently Asked Questions (FAQ)

Q: Can the AK6E-066C be used as a direct replacement for the AK6-066C?

A: Yes. Both parts share identical electrical parameters (66V standoff, 72V breakdown minimum, 120V clamping, 6kA peak pulse current) and mechanical specifications (through-hole axial package with 24.15mm center spacing). They are functionally interchangeable.

Q: Are there differences in RoHS compliance between these parts?

A: The AK6-066C is ROHS3 compliant, while the AK6E-066C is RoHS compliant. Both meet environmental compliance standards. Verify your application's specific compliance requirements before selection.

Q: What is the significance of the packaging difference (Tray vs. Bulk)?

A: Packaging format affects procurement and handling but does not impact electrical or mechanical performance. Tray packaging is typically used for automated assembly, while bulk packaging is used for manual assembly or distribution. Select based on your assembly process requirements.

Q: Are the operating temperature ranges identical?

A: Yes. Both parts operate across -55°C to 125°C junction temperature, ensuring equivalent thermal performance in the specified operating environment.

Q: What applications are these parts suitable for?

A: The AK6-066C is specified for general-purpose overvoltage protection. The AK6E-066C is specified for telecom applications. Both provide identical electrical protection characteristics and can be used in transient voltage suppression circuits requiring 66V standoff voltage and 6kA surge capacity.