Compact SMD TVS Diodes Provide High-Reliability, 66% Increase in Surge Handling for Aerospace and Avionics Applications

October 28, 2022

 

Littelfuse Inc. recently announced the new 5.0SMDJxxS-HRA TVS Diode Series. The high-reliability TVS diodes are designed, manufactured, and screened to provide robust overvoltage protection, with low early failures and zero degradation over continuous surge events.

Today’s aircraft use more and new composite materials, thus requiring higher-level lightning protection for all electrical and electronic equipment. The 5.0SMDJxxS-HRA is a highly reliable TVS diode series developed for aircraft subsystems. They protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Littelfuse manufactures these high-reliability TVS diodes using a stringent process for up-screening electronic components that ensures enhanced robustness. They are available in a 5000W surface-mount DO-214AB package with a high-power density of up to 5 kW.

The 5.0SMDJxxS-HRA TVS Diode Series is ideal for applications that require high reliability under harsh environments, including:

  • •Aerospace, avionics, and aircraft subsystems (e.g., cockpit displays, fight control, radar, etc.),
  • •Aircraft power trains,
  • •AC or DC power line protection, 
  • •Low-frequency data lines,
  • •Industrial automation, and 
  • •Harsh environment applications.

 

“The 5.0SMDJxxS-HRA TVS Diode Series enhanced power rating (up to 5 KW) while in the same compact surface-mount package (as prior solutions) provide increased electronics protection performance and greater design flexibility,” said Charlie Cai, a Senior Product Marketing Manager at Littelfuse. “These up-screened TVS diodes help aerospace electronics designers meet demanding high-grade regulatory requirements without needing to increase the size of their printed circuit boards.”

The 5.0SMDJxxS-HRA TVS Diode Series offers these key benefits:

  • •Delivers a higher power rating than other high-reliability TVS diode series, resulting in a 66% increase in surge handling capability.
  • •Utilizes high-reliability design and up-screening process for avionics and other demanding applications.
  • •The very small JEDEC DO-214AB (SMC) package, coupled with a high-power density (5 KW), provides PC board designers with a space-saving alternative to currently available options.
  • •Meets DO-160 lightning protection regulatory requirements.
  • •Provides a very low clamping voltage and unlimited surge life.

Availability

The 5.0SMDJxxS-HRA TVS Diode Series are available in tape and reel format in quantities of 3,000. Place ample requests through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit Littelfuse.com

 

To learn more about the new 5.0SMDJxxS-HRA TVS Diode Series from Littelfuse, click here 

Littelfuse Logo 300x150

 

 

 

Related Articles

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • Applications of Physical AI in Canadian Sectors

    June 23, 2026 Physical AI — the convergence of artificial intelligence with robotics and autonomous motion systems — is reshaping how Canadian industries operate. Across sectors from healthcare to mining, AI-enabled machines are performing tasks that were once entirely dependent on human intervention. But deploying Physical AI effectively requires more than sophisticated algorithms: it demands… Read More…

  • Case Study: Optimizing Harmonic Mitigation in Wastewater Treatment

    June 22, 2026 Segment and Application In a municipality, wastewater treatment plants typically stand out as the main consumers of electricity. The operational processes exhibit significant load variations throughout a 24-hour cycle, necessitating the use of AC drives to regulate pumps, blowers, and other motorized equipment in response to fluctuating demand. In one wastewater treatment… Read More…