5KP54CA-B Equivalent & Substitute Parts

Part Overview

The 5KP54CA-B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component operates with a 54V reverse standoff voltage and provides 5000W peak pulse power dissipation. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative packaging formats are required.

Substiute Parts

5KP54CA-B

Littelfuse Inc.In Stock: 9625KP54CA-B Datasheet

Current PartRFQ

5KP54CA

Littelfuse Inc.In Stock: 16845KP54CA Datasheet

MFR RecommendedRFQ

15KP54CA-TP

Micro Commercial CoIn Stock: 142915KP54CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5KP54CA-B are identified based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 54V
• Voltage - Breakdown (Min): 60V
• Bidirectional Channels: 1
• Type: Zener
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• RoHS Status: ROHS3 Compliant

Secondary Consideration:

• Packaging format (Bulk vs. Cut Tape) does not affect electrical functionality and permits substitution for component-level applications

The 5KP54CA-B (Bulk packaging) is electrically equivalent to 5KP54CA (Cut Tape packaging), both manufactured by Littelfuse Inc. with identical electrical specifications. The 15KP54CA-TP, manufactured by Micro Commercial Co, operates within the same voltage parameters but features a higher power rating (15000W vs. 5000W) and different package designation (R-6 vs. P600), making it suitable for applications requiring enhanced thermal performance.

Parameter Comparison

Engineering Selection Recommendations

5KP54CA (Littelfuse Inc.): This part is the direct electrical equivalent of 5KP54CA-B, differing only in packaging format (Cut Tape vs. Bulk). Both parts maintain identical electrical specifications, temperature ratings, and compliance certifications. Selection between these two is determined by procurement and assembly requirements rather than functional performance.

15KP54CA-TP (Micro Commercial Co): This part shares the same voltage parameters (54V standoff, 60V breakdown minimum) and operating temperature range as the main part. The 15KP54CA-TP provides triple the peak pulse power rating (15000W vs. 5000W) with a different package designation (R-6 vs. P600). This part is suitable for applications where thermal margin or higher transient energy absorption is required. All three parts maintain ROHS3 compliance and unlimited moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can 5KP54CA be used as a direct replacement for 5KP54CA-B?

A: Yes. Both parts are manufactured by Littelfuse Inc. with identical electrical specifications. The only difference is packaging format: 5KP54CA-B is supplied in Bulk, while 5KP54CA is supplied in Cut Tape. Electrical performance and compliance are equivalent.

Q: What is the difference between the P600 and R-6 package designations?

A: P600 and R-6 are different axial package formats used for through-hole TVS diodes. The 5KP54CA-B and 5KP54CA use P600 packaging, while the 15KP54CA-TP uses R-6 packaging. Package selection affects board layout and thermal characteristics but does not alter electrical function for the specified voltage parameters.

Q: Can 15KP54CA-TP replace 5KP54CA-B in all applications?

A: The 15KP54CA-TP is electrically compatible at the voltage level (54V standoff, 60V breakdown) and temperature range. However, the higher power rating (15000W vs. 5000W) and different package format must be evaluated against specific circuit requirements and board layout constraints. The parts are functionally interchangeable for overvoltage protection at the specified voltage threshold.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts—5KP54CA-B, 5KP54CA, and 15KP54CA-TP—are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: What determines whether a part qualifies as a substitute?

A: Substitution is based on matching the critical electrical parameters: reverse standoff voltage (54V), breakdown voltage minimum (60V), bidirectional channel configuration (1), zener type, through-hole mounting, and operating temperature range (-55°C ~ 175°C). Packaging format and manufacturer do not prevent substitution at the component level.