5KP64C-B Equivalent & Substitute Parts

Part Overview

The 5KP64C-B is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This component features a 64V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package. The 5KP64C-B is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

5KP64C-B

Littelfuse Inc.In Stock: 10855KP64C-B Datasheet

Current PartRFQ

5KP64CA

Littelfuse Inc.In Stock: 27965KP64CA Datasheet

DirectRFQ

5KP64CA-B

Littelfuse Inc.In Stock: 11275KP64CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP64C-B is determined by strict equivalence across the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 64V
• Bidirectional Channels: 1
• Power - Peak Pulse: 5000W (5kW)
• Mounting Type: Through Hole
• Package / Case: P600, Axial
• Type: Zener
• Category: Transient Voltage Suppressors (TVS)

The substitute parts 5KP64CA-B and 5KP64CA meet all these core requirements. Both are active products from the same 5KP series manufactured by Littelfuse Inc., sharing identical standoff voltage, power rating, package configuration, and thermal operating range. Differences in voltage breakdown and clamping characteristics fall within the acceptable parameter variance for this product category and do not preclude functional substitution.

Parameter Comparison

Engineering Selection Recommendations

Both 5KP64CA-B and 5KP64CA are active products suitable for replacing the obsolete 5KP64C-B. Selection between these two substitutes is determined by packaging requirements:

• 5KP64CA-B: Supplied in Bulk packaging. Recommended for high-volume production environments and direct board assembly operations.
• 5KP64CA: Supplied in Cut Tape (CT) packaging. Recommended for automated pick-and-place assembly and component tape-reel handling systems.

Both substitutes maintain full ROHS3 compliance and identical thermal operating specifications (-55°C ~ 175°C). The active product status of both alternatives ensures long-term availability and manufacturing support compared to the obsolete 5KP64C-B.

Frequently Asked Questions (FAQ)

Q: Can 5KP64CA-B and 5KP64CA be used interchangeably with 5KP64C-B?

A: Yes. Both parts share identical electrical ratings (64V standoff, 5000W peak pulse power), thermal range, and P600 axial package configuration. The primary difference is packaging format (Bulk versus Cut Tape), which does not affect electrical performance or board-level compatibility.

Q: What is the difference between 5KP64CA-B and 5KP64CA?

A: The suffix "-B" indicates Bulk packaging, while 5KP64CA is supplied in Cut Tape format. Electrical specifications and performance are identical. Selection depends on assembly process requirements and component handling systems.

Q: Why is the 5KP64C-B classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The active equivalents 5KP64CA-B and 5KP64CA provide identical functionality and are recommended for new designs and ongoing procurement.

Q: Are there any voltage or power rating differences between the main part and substitutes?

A: The reverse standoff voltage (64V) and peak pulse power (5000W) are identical across all three parts. The voltage breakdown and clamping specifications show minor variations (5KP64C-B: 67.37V breakdown, 108.15V clamp versus 5KP64CA variants: 71.1V breakdown, 103V clamp), which remain within acceptable operating parameters for general-purpose transient suppression applications.

Q: Do all three parts meet RoHS compliance requirements?

A: Yes. The 5KP64C-B, 5KP64CA-B, and 5KP64CA are all ROHS3 compliant with MSL rating of 1 (Unlimited), suitable for applications requiring environmental and regulatory compliance.