TLP30CA Equivalent & Substitute Parts

Part Overview

The TLP30CA is a high-reliability transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This bidirectional zener TVS operates with a 30V reverse standoff voltage and provides peak pulse current handling of 105.4A with a maximum clamping voltage of 48.4V. The device is housed in a P600 axial through-hole package and maintains active product status with full RoHS3 compliance. Substitute parts are identified to provide equivalent or enhanced performance characteristics for applications requiring alternative sourcing, improved availability, or specific qualification requirements.

Substiute Parts

TLP30CA

Littelfuse Inc.In Stock: 801TLP30CA Datasheet

Current PartRFQ

6KPE30CAH

Eaton - Electronics DivisionIn Stock: 14846KPE30CAH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes is determined by equivalence in the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must match at 30V
• Voltage - Clamping (Max) @ Ipp: Must match at 48.4V
• Bidirectional Channels: Must be 1
• Mounting Type: Must be Through Hole
• Package / Case: Must be Axial configuration
• Operating Temperature Range: Must support -55°C to 175°C minimum

The 6KPE30CAH from Eaton - Electronics Division satisfies all substitution criteria. While it exhibits higher peak pulse current (136.4A versus 105.4A) and greater peak pulse power (6.6kW versus 5kW), these represent enhanced performance characteristics that do not compromise compatibility. The identical voltage parameters, bidirectional configuration, through-hole mounting, and axial package ensure direct functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The TLP30CA remains the primary selection for applications requiring Littelfuse high-reliability TVS diodes with confirmed RoHS3 compliance and general-purpose classification. The 6KPE30CAH serves as a qualified substitute when Littelfuse inventory is unavailable or when enhanced current and power handling capabilities are beneficial. The 6KPE30CAH carries AEC-Q101 automotive qualification and is designated for telecom applications, providing additional assurance for demanding environments. Both devices maintain identical voltage protection characteristics and thermal operating ranges, ensuring direct circuit compatibility. Selection between these parts should be based on availability, supply chain requirements, and application-specific qualification needs rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the 6KPE30CAH replace the TLP30CA in existing designs?

A: Yes. Both devices share identical voltage parameters (30V standoff, 48.4V clamping), bidirectional configuration, through-hole mounting, and axial packaging. The 6KPE30CAH's higher current and power ratings represent enhanced performance that does not create compatibility issues.

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

A: The TLP30CA handles 105.4A peak pulse current, while the 6KPE30CAH handles 136.4A. This difference reflects manufacturing variations between suppliers and does not affect substitution suitability for circuits designed around the TLP30CA specification.

Q: Are there packaging differences between these parts?

A: Both devices use axial through-hole packages suitable for identical PCB layouts. The TLP30CA specifies P600 package designation, while the 6KPE30CAH uses standard axial classification. These represent equivalent physical configurations.

Q: What compliance certifications apply to each part?

A: The TLP30CA is RoHS3 compliant with MSL 1 rating. The 6KPE30CAH carries AEC-Q101 automotive qualification and MSL 1 rating. Both are REACH unaffected and classified under ECCN EAR99.

Q: Which part should be selected for new designs?

A: Selection depends on supply chain strategy and application requirements. The TLP30CA is appropriate for general-purpose applications with confirmed Littelfuse sourcing. The 6KPE30CAH is suitable for designs requiring automotive-grade qualification or when Eaton supply chain integration is preferred.