5KP54C-B Equivalent & Substitute Parts

Part Overview

The 5KP54C-B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 54V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package. The 5KP54C-B is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Active alternatives with identical or superior electrical characteristics are available from multiple manufacturers.

Substiute Parts

5KP54C-B

Littelfuse Inc.In Stock: 9945KP54C-B Datasheet

Current PartRFQ

5KP54CA

Littelfuse Inc.In Stock: 16845KP54CA Datasheet

DirectRFQ

5KP54CA-B

Littelfuse Inc.In Stock: 9625KP54CA-B Datasheet

DirectRFQ

15KP54CA-TP

Micro Commercial CoIn Stock: 142915KP54CA-TP Datasheet

MFR RecommendedRFQ

5KP54CE3/TR13

Microchip TechnologyIn Stock: 7865KP54CE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP54C-B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 54V
• Voltage - Breakdown (Min): 56.84V minimum
• Bidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: P600 or R-6 Axial
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• RoHS Status: ROHS3 Compliant

Substitute parts must maintain the 54V reverse standoff voltage specification and support the same through-hole axial mounting configuration. Voltage clamping characteristics and peak pulse power ratings may vary within acceptable engineering tolerances for the application. All qualified substitutes are active products with current manufacturer support and full RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with full ROHS3 compliance and current manufacturer support. Selection among qualified substitutes should be based on specific application requirements and package availability.

The 5KP54CA and 5KP54CA-B are direct Littelfuse Inc. alternatives maintaining identical P600 axial packaging and 5000W power rating. These parts feature improved voltage clamping characteristics (87.1V) compared to the obsolete 5KP54C-B and are available in both cut tape and bulk packaging options.

The 15KP54CA-TP from Micro Commercial Co provides enhanced power handling capability at 15000W peak pulse power while maintaining the 54V reverse standoff specification. This part uses R-6 axial packaging, which differs from the P600 package of the main part.

The 5KP54CE3/TR13 from Microchip Technology maintains P600 axial packaging and 5000W power rating with a clamping voltage of 96.3V. This part is supplied in tape and reel packaging format.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 5KP54C-B with 5KP54CA or 5KP54CA-B?

A: Yes. Both 5KP54CA and 5KP54CA-B maintain the critical 54V reverse standoff voltage, identical P600 axial package configuration, and equivalent 5000W peak pulse power rating. These are active Littelfuse products with full ROHS3 compliance. The primary difference is packaging format (cut tape versus bulk).

Q: What is the difference between P600 and R-6 axial packages?

A: Both P600 and R-6 are through-hole axial package formats for TVS diodes. The 15KP54CA-TP uses R-6 packaging while the main part and most substitutes use P600. Physical dimensions and lead spacing differ between these packages. Verify mechanical compatibility with your PCB layout before selection.

Q: Why does 15KP54CA-TP have 15000W power rating instead of 5000W?

A: The 15KP54CA-TP is a higher-power variant from a different manufacturer. While it maintains the 54V reverse standoff voltage and general-purpose application profile, the increased power rating reflects different internal design characteristics. Selection should be based on your circuit's actual transient energy requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the compliance status of the obsolete 5KP54C-B.

Q: What is the operating temperature range for these TVS diodes?

A: All parts, including the main 5KP54C-B and all substitutes, operate across -55°C to 175°C junction temperature range, supporting industrial and automotive applications.