TP5KP20CA Equivalent & Substitute Parts

Part Overview

The TP5KP20CA is a transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for through-hole applications requiring bidirectional voltage clamping. This component operates with a 20V reverse standoff voltage and provides 32.4V maximum clamping voltage at peak pulse current. The part is actively produced and carries automotive-grade qualification (AEC-Q101), making it suitable for demanding industrial and automotive environments. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

TP5KP20CA

LittelfuseIn Stock: 1592TP5KP20CA Datasheet

Current PartRFQ

6KPE20CAH

Eaton - Electronics DivisionIn Stock: 14006KPE20CAH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TP5KP20CA is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 20V (nominal)
• Voltage - Clamping (Max) @ Ipp: 32.4V
• Mounting Type: Through Hole
• Package / Case: Axial configuration
• Bidirectional Channels: 1
• Type: Zener
• Automotive Grade and AEC-Q101 Qualification

The 6KPE20CAH from Eaton - Electronics Division meets these criteria. While peak pulse current (203.7A vs. 157.4A) and power dissipation (6.6kW vs. 5kW) are higher in the substitute, these represent enhanced performance characteristics that do not prevent substitution. Operating temperature range extends to 175°C (versus 150°C), providing additional thermal margin. Both parts maintain identical voltage specifications and through-hole axial packaging, ensuring mechanical and electrical compatibility in the target application.

Parameter Comparison

Engineering Selection Recommendations

Both the TP5KP20CA and 6KPE20CAH are active production components with automotive-grade qualification and AEC-Q101 certification. Selection between these parts should be based on:

• Availability: TP5KP20CA has 1511 units in stock; 6KPE20CAH has 1314 units in stock
• Thermal Performance: 6KPE20CAH supports extended operating temperature to 175°C, beneficial for high-temperature environments
• Current Handling: 6KPE20CAH provides 203.7A peak pulse current versus 157.4A, offering margin for transient events
• Power Dissipation: 6KPE20CAH rated at 6.6kW versus 5kW, suitable for higher-energy transient suppression

Both parts comply with RoHS3 and REACH requirements. Direct pin-for-pin substitution is supported due to identical axial through-hole packaging and voltage specifications.

Frequently Asked Questions (FAQ)

Q: Can the 6KPE20CAH directly replace the TP5KP20CA in an existing circuit?

A: Yes. Both parts are through-hole axial devices with identical voltage specifications (20V standoff, 32.4V clamping). Pin-for-pin substitution is supported without circuit modification.

Q: What is the significance of the higher peak pulse current in the 6KPE20CAH?

A: The 6KPE20CAH is rated for 203.7A peak pulse current compared to 157.4A in the TP5KP20CA. This higher rating provides additional margin for transient suppression and does not create compatibility issues when substituting into applications designed for the TP5KP20CA.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the TP5KP20CA and 6KPE20CAH carry automotive-grade designation and AEC-Q101 qualification, meeting automotive reliability and quality standards.

Q: Does the extended temperature range of the 6KPE20CAH affect substitution?

A: No. The 6KPE20CAH operating range of -55 to 175°C encompasses the TP5KP20CA range of -55 to 150°C. The extended upper limit provides additional thermal margin without creating compatibility concerns.

Q: Are there packaging differences between these parts?

A: Both parts use through-hole axial packaging. The TP5KP20CA is specified as P600 package; the 6KPE20CAH uses standard axial configuration. Physical dimensions and lead spacing are compatible for direct board-level substitution.

Q: What compliance certifications apply to both parts?

A: Both parts are RoHS3 compliant and REACH unaffected. Both carry AEC-Q101 automotive qualification and are classified under ECCN EAR99 with HTSUS code 8541.10.0080.