Sunday, February 25, 2024

Compact High-Power TVS Diodes for Efficient Circuit Protection

By Sharad Bhowmick

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The LTKAK2 TVS diodes can achieve robust circuit protection for high-power applications using 60-80% less PCB space.

Littelfuse has released the LTKAK2 series of high-power TVS diodes. The LTKAK2 series of surface mount solutions address the market demand for automated PCB assembly process-compatible TVS diodes with a high surge rating. These diodes can enable designers to save up to 60 – 80% of PCB space thus making the final product more compact. The diodes offer a high 2 kA surge rating, moreover, the LTKAK2 series meets various safety norms making it suitable for use in high-power AC and DC applications. The diode series is suitable for applications in various fields including avionics, AC and DC power supplies, high-power converters, etc.

The company claims that the LTKAK2-L Series TVS Diodes offer a compact, surface mount package compatible with automated PCB assembly processes. The smaller solution in a modified SMTO-218 package allows designers to achieve robust circuit protection with less PCB space than the available axial leaded solutions. The 2 kA surge current rating enables designs to comply with IEC-61000-4-5 Level 4 requirements, which protects numerous high-reliability AC and DC power supplies and their applications.

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“This new product helps solve the key problem of high surge rating TVS diodes being in larger sized, axial leaded packages, which are not compatible with automated PCB assembly processes,” said Ben Huang, Senior Product Marketing Manager at Littelfuse. “The LTKAK2-L Series provides a compact surface mount solution that protects AC and DC power supply to achieve high reliability. This automated PCB assembly process-compatible TVS diode is a significant step towards making high-power TVS diodes more accessible to designers.”

Features of LTKAK2-L Series TVS Diodes:
• Compact modified SMTO-218 package
• Compatible with automated PCB assembly processes
• Uses 60-80% less PCB space than axial leaded components
• High 2 kA surge rating meets IEC-61000-4-5 Level 4
• Protection for high-power AC and DC applications.

The LTKAK2-L series will enable engineers to reduce the size and cost of the final product while ensuring higher safety. The LTKAK2-L series diode is designed and developed by Littelfuse, a Chicago, Illinois-based industrial technology manufacturing company. Littelfuse also develops and manufactures electronic components such as fuses, diodes, etc. for a variety of industrial, transportation, and electronics end markets.

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