We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a High-Voltage Diode?

M. McGee
By
Updated Jun 04, 2024
Our promise to you
EasyTechJunkie is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At EasyTechJunkie, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A high-voltage diode is any diode designed to operate at extremely high voltages or exhibit specific properties when exposed to high voltages. Nearly any diode can operate at any voltage if that is what it is made to do. By reinforcing parts of the diode and using specific materials during its construction, it is possible for a diode to withstand extremely high amounts of power. With that being said, there are several types of diodes that are commonly used when dealing with high voltages or voltage spikes.

A diode is a complex electrical component made up of several different materials. When used in a common electrical device, a diode has a positive anode terminal that takes in power and a negative cathode that lets it out. In nearly every diode, this is a one-way operation—the power cannot go backward. Between these two terminals is a semi-conductive material that allows power to move through it.

It is this semiconductor that turns a common diode into a high-voltage diode. These semiconductors are created through a process called doping. A dopant is applied to each end of the semiconductor: one dopant creates a positive charge, and one is negative. The area between the two ends is left undoped and is generally referred to as the intrinsic layer or the p-n junction. The doping materials and the size of the p-n junction are important to the overall diode function.

Avalanche diodes are a type of high-voltage diode that can handle large amounts of power. An avalanche effect is caused when a charge begins to increase in a diode without a subsequent increase in outside power. This effect will destroy normal diodes, but an avalanche diode will continue operation until the outer voltage catches up or the system equalizes.

A transient voltage suppression diode is a diode that protects systems from high-voltage overloads. This diode has a very large p-n junction, which discourages the transmission of power through the system. When large power spikes hit the system, this high-voltage diode will take on the additional power and move the surge to the ground system. Often, this is the only function for one of these diodes—when not conducting surplus power to ground, it transmits no power at all.

The last common high-voltage diode is one that operates differently than nearly any other diode. The Zener diode can actually transmit power backward through its system. When power reaches a certain level, the diode’s specially-doped p-n junction begins to let power move backward through the system, creating a temporary bottleneck. This blocks power from moving for long enough for the voltage to stabilize without hurting the device. Afterward, the p-n junction goes back to operating like a normal diode.

EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
M. McGee
By M. McGee
Mark McGee is a skilled writer and communicator who excels in crafting content that resonates with diverse audiences. With a background in communication-related fields, he brings strong organizational and interpersonal skills to his writing, ensuring that his work is both informative and engaging.
Discussion Comments
M. McGee
M. McGee
Mark McGee is a skilled writer and communicator who excels in crafting content that resonates with diverse audiences....
Learn more
EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.