TP5KP33CA Equivalent & Substitute Parts

Part Overview

The TP5KP33CA is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for through-hole applications requiring bidirectional overvoltage protection. This component operates with a 33V reverse standoff voltage and provides peak pulse power handling of 5000W. The part maintains active product status and carries automotive-grade qualification under AEC-Q101 standards. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

TP5KP33CA

Littelfuse Inc.In Stock: 2910TP5KP33CA Datasheet

Current PartRFQ

6KPE33CAH

Eaton - Electronics DivisionIn Stock: 13516KPE33CAH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TP5KP33CA is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 33V
• Voltage - Clamping (Max) @ Ipp: 53.3V
• Bidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: Axial configuration
• Grade: Automotive
• Qualification: AEC-Q101

The substitute part 6KPE33CAH meets all mandatory electrical and mechanical criteria. Both parts maintain identical standoff and clamping voltages, operate within automotive specifications, and use through-hole axial packaging. Differences in peak pulse current (123.8A vs. 95.7A) and power dissipation (6600W vs. 5000W) represent enhanced performance characteristics that do not preclude substitution in applications designed for the TP5KP33CA.

Parameter Comparison

Engineering Selection Recommendations

Both the TP5KP33CA and 6KPE33CAH maintain active product status and carry automotive-grade qualification with AEC-Q101 certification. Selection between these parts should be based on application-specific requirements and supply chain availability.

The TP5KP33CA is suitable for applications requiring the specified 5000W peak pulse power rating with a maximum junction temperature of 150°C. The 6KPE33CAH provides enhanced performance margins with 6600W peak pulse power and extended operating temperature range to 175°C, making it applicable to thermal environments requiring higher temperature tolerance. Both parts are REACH Unaffected and classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can the 6KPE33CAH replace the TP5KP33CA in existing designs?

A: Yes. Both parts maintain identical voltage specifications (33V standoff, 53.3V clamping) and automotive AEC-Q101 qualification. The 6KPE33CAH provides higher peak pulse current and power ratings, which do not create incompatibility in circuits designed for the TP5KP33CA.

Q: Are the package dimensions identical between these parts?

A: Both parts use through-hole axial packaging. The TP5KP33CA is specified as P600 package type. Mechanical compatibility should be verified against PCB footprint requirements, as axial package variants may have dimensional differences.

Q: What is the difference in peak pulse current between these parts?

A: The TP5KP33CA handles 95.7A peak pulse current, while the 6KPE33CAH handles 123.8A. This difference reflects enhanced current handling capability in the Eaton part and does not affect substitution eligibility for applications designed around the lower rating.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts carry automotive-grade classification and AEC-Q101 qualification. Both are REACH Unaffected and classified as EAR99 for export control purposes.

Q: What is the temperature operating range difference?

A: The TP5KP33CA operates from -55°C to 150°C junction temperature. The 6KPE33CAH extends the upper limit to 175°C, providing 25°C additional thermal margin for high-temperature applications.