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Littelfuse: High-Surge-Rating SMD TVS Diodes 50% Smaller Than Other Surface-Mounted Solutions

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November 21, 2022

Littelfuse, Inc. has recently announced their new SMTOAK2 TVS Diode Series. Many of today’s high-power, high-surge-rating TVS diodes are only available in axial leaded packages. The compact, 2 kA 8/20 μs rated, surface-mount package SMTOAK2 TVS Diode Series allows electronics designers to achieve a more robust transient voltage, overvoltage protection, and lightning protection system while using less printed circuit board (PCB) space.

The SMTOAK2 TVS Diode Series is ideal for high-power-density applications that require robust protection in a small footprint, including:

  •    –   ICT, Medical, Industrial DC power supplies;
  •    –   high-power DC bus protection;
  •    –   DC power supplies used in exposed and harsh environments;
  •    –   power over ethernet (PoE) ports;
  •    –   small cell, micro cell, remote radio units (RRU), baseband units (BBU); and
  •    –   high-power density SiC and GAN-based DC/DC converters/power supplies.

“Global trends and regulatory requirements for higher efficiency power supplies, high-current and high-speed MOSFET/IGBT designs are increasingly in demand,” said Ben Huang, Senior Product Marketing Manager, at Littelfuse. “These fast-switching designs need protection against inductive kickback. By using the high-power SMTOAK2 TVS Diode Series, designers can achieve high reliability and robustness while reducing the required board space and assembly time.”

The SMTOAK2 TVS Diode Series offers these key benefits:

  •    –   Protects high-cost, high-current, high-speed MOSFET/IGBT circuits against inductive kicks with low-clamping voltage and high-surge rating.
  •    –   Enables designers to achieve robust circuit protection with less PCB space via a modified, compact SMTO-263 surface-mount package 50% smaller than SMTO-218 surface-mounted solutions.
  •    –   Compatible with automated PCB assembly processes reducing costs while saving time.

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https://www.littelfuse.com/about-us/news/news-releases/2022/new-littelfuse-high-surge-rating-smd-tvs-diodes-50-percent-smaller-than-other-surface-mounted-solutions.aspx

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