TLP15A Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The TLP15A is a unidirectional Zener-type transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole axial component operates across a temperature range of -55°C to 175°C and is RoHS3 compliant with unlimited moisture sensitivity rating. The part is currently in active production status with 983 units available in inventory.

TVS diodes like the TLP15A are essential for protecting sensitive electronic circuits from transient voltage spikes and electrostatic discharge events. Equivalent and substitute parts are identified when they maintain identical or superior electrical performance within the same mechanical and thermal specifications.

Substiute Parts

TLP15A

Littelfuse Inc.In Stock: 1091TLP15A Datasheet

Current PartRFQ

6KPE15AH

Eaton - Electronics DivisionIn Stock: 9116KPE15AH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP15A is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 15V
• Voltage - Breakdown (Min): 16.7V
• Voltage - Clamping (Max) @ Ipp: 24.4V
• Unidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: Axial
• Operating Temperature Range: -55°C to 175°C (TJ)

The 6KPE15AH manufactured by Eaton - Electronics Division meets all these core electrical and mechanical requirements. While the 6KPE15AH demonstrates higher peak pulse current (270.5A versus 209A) and greater peak pulse power (6.6kW versus 5kW), these represent performance enhancements rather than deviations. Both parts maintain identical voltage specifications and thermal operating ranges, ensuring direct functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the TLP15A and 6KPE15AH are active production components with unlimited moisture sensitivity ratings and REACH unaffected status. The TLP15A carries explicit RoHS3 compliance certification. Selection between these parts should be based on:

• Inventory availability and lead time requirements
• Packaging preference (Tape & Reel versus Cut Tape)
• Application-specific surge current demands (209A baseline versus 270.5A enhanced capability)
• Compliance documentation requirements for regulated industries

The 6KPE15AH's higher peak pulse ratings provide additional margin in applications subject to severe transient events, while the TLP15A meets baseline specifications with established Littelfuse qualification history.

Frequently Asked Questions (FAQ)

Q: Can the 6KPE15AH directly replace the TLP15A in existing circuit designs?

A: Yes. Both parts maintain identical voltage specifications (15V standoff, 16.7V breakdown, 24.4V clamping) and thermal operating ranges (-55°C to 175°C). The axial through-hole package format is mechanically compatible. The 6KPE15AH's higher current and power ratings do not create incompatibility.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous carrier tape wound on reels, suitable for automated assembly processes. Cut Tape packaging is supplied as individual segments cut from the same carrier tape, typically for lower-volume or manual assembly applications. Both formats contain identical components.

Q: Are there thermal or reliability differences between these parts?

A: Both parts operate across the same temperature range (-55°C to 175°C junction temperature) and carry unlimited moisture sensitivity ratings. No thermal or reliability differentiation is specified in the provided data.

Q: Why does the 6KPE15AH have higher peak pulse ratings?

A: The 6KPE15AH is rated for 270.5A peak pulse current and 6.6kW peak pulse power compared to the TLP15A's 209A and 5kW. This represents a design enhancement providing greater transient suppression capability while maintaining identical voltage clamping characteristics.

Q: What compliance certifications apply to each part?

A: The TLP15A is RoHS3 compliant. The 6KPE15AH carries AEC-Q101 automotive qualification. Both are REACH unaffected and carry EAR99 ECCN classification.