Best High Voltage Diodes: 10 Supreme Options

Looking for the best high voltage diodes?
Here’s a guide with 10 reliable options to upgrade your projects with confidence.

High voltage diodes are essential for many projects and repairs. They handle extreme conditions with ease. These diodes are reliable and durable.

They work in microwave ovens, lasers, and even Tesla coils. You’ll find them in medicine and computer monitors too. These diodes are versatile and powerful.

Choosing the right diode can make your project succeed. This guide will help you find the best high voltage diodes. Get ready to upgrade your work with confidence.

List of Top 10 High Voltage Diodes

Title	Best For	Price
Comimark 4Pcs 20000V 20KV 2A PRHVP 2A-20 Single Phase Rectifier High-Voltage Diodes 181975mm	This product is perfect for engineers, technicians, and DIY hobbyists who work with high-voltage circuits and need reliable diodes for projects like microwave ovens, lasers, or electromagnetic equipment. It’s ideal for anyone who values high reliability and strong anti-surge protection.	View on Amazon (paid link)
12pcs 2CL2FL 15KV 100mA 100nS High Voltage Diode Rectifier HF Tesla Coil	These small, fast diodes keep your Tesla coil experiment safe. Ideal for hobbyists who need a quick, reliable high‑voltage filter.	View on Amazon (paid link)
Yetaida 10Pcs 2CL77 Rectifier Diode, High Voltage General Purpose Diodes, Axial Lead Electronic Components for Power Supply & Circuit Protection	Yetaida 10Pcs 2CL77 Rectifier Diodes are perfect for DIY enthusiasts and electronics hobbyists who need reliable, high-voltage components for their projects. Whether you’re working on power supplies, circuit protection, or Arduino/Raspberry Pi builds, these diodes offer sturdy performance and easy compatibility.	View on Amazon (paid link)
EEEEE 20A10 Diode Rectifier Diode 20pcs 20 Amp 20A 1000 Volt 1000V Electronic Silicon Diodes high-Current, high-Voltage Rectifier diode in a DO-201AD Package, Ideal for Power Supply Applications.	This 20A10 diode rectifier is perfect for anyone building heavy-duty power supplies, inverters, or industrial systems. It’s ideal for high-power and high-voltage projects needing reliable performance.	View on Amazon (paid link)
Comimark 5 pcs CL04-12 Microwave Oven one-Way High Voltage Diode Rectifier…	This product is perfect for DIY repair lovers and appliance technicians who need a reliable high voltage diode for fixing or maintaining microwave ovens. It’s also great for anyone who wants a cost‑effective pack of 5 to keep repairs simple and stress‑free.	View on Amazon (paid link)
10 Pcs CL04-12 Microwave Oven High Voltage Diode Rectifier,Microwave Diode	This part is great for people who fix microwaves. It works well for repair shops and hobby pros.	View on Amazon (paid link)
100PCS 2CL77 5mA 20kV High Voltage Diode HV Rectifier	This product is perfect for anyone who needs high-voltage diodes for projects or repairs. It’s great for electronics hobbyists, engineers, or professionals working with high-voltage systems.	View on Amazon (paid link)
EEEEE 20 Kinds 200 Diode Assortment Kit 6A10 10A10 20A10 15SQ045 20SQ050 1N34A 1N914 SR560 DB3 1N5349B 1N4001 1N4004 1N4007 1N5404 1N5406 1N5408 1N4148 1N5817 1N5819 1N5822 Zener Schottky Rectifier	This EEEEE Diode Assortment Kit is perfect for electronics enthusiasts, hobbyists, and DIYers who need a variety of diodes for their projects. It’s also great for students learning about electronics or engineers working on prototypes.	View on Amazon (paid link)
12pcs 2CL72 10KV 5mA 100nS High Voltage Diode HV Rectifier HF Tesla Coil	This set is perfect for Tesla coil builders, high-voltage hobbyists, and anyone working on HF rectifier projects. It’s made for people who need fast recovery, high voltage handling, and precise performance in compact designs.	View on Amazon (paid link)
Yetaida 10A10 Rectifier Diode 10A 1000V – High Current & High Voltage General Purpose Diodes (Pack of 10) – Axial Lead Electronic Components for Power Supply & Circuit Protection	This pack is perfect for DIY makers, electronics hobbyists, and engineers who need high current and high voltage diodes for projects like power supplies, Arduino builds, or circuit protection. Simple, strong, and ready for any PCB or breadboard work.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 High Voltage Diodes in this expert-curated guide. Each product is thoroughly reviewed for performance and value, ensuring you find the perfect fit for your needs. Whether you’re a pro or a beginner, this guide simplifies your choice with clear, easy-to-read insights. Dive in to find the best high voltage diodes tailored just for you.

1. Comimark 4Pcs 20000V 20KV 2A PRHVP 2A-20 Single Phase Rectifier High-Voltage Diodes 181975mm

Comimark 4Pcs 20000V 20KV 2A PRHVP 2A-20 Single Phase Rectifier High-Voltage Diodes are reliable and durable. They offer excellent anti-surge impact capability.

These diodes are ideal for various applications. They work in microwave ovens and lasers. They are also used in medicine and computer monitors.

The package includes 4 pieces of 20KV 2A diodes. Each diode measures 181975mm. If you have any issues, contact us for a refund or replacement.

Pros	Cons
High reliability for steady, dependable operation. Strong surge protection shields against voltage spikes. Wide application suits ovens, lasers, computers. High current capacity handles intense power loads. Ready‑to‑ship 4‑piece set, no surprises.	Bulky size may not fit all setups Specialized use limits general applications Replacement hassle if product count is wrong

Perfect For:

This product is perfect for engineers, technicians, and DIY hobbyists who work with high-voltage circuits and need reliable diodes for projects like microwave ovens, lasers, or electromagnetic equipment. It’s ideal for anyone who values high reliability and strong anti-surge protection.

Ready to Purchase?

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2. 12pcs 2CL2FL 15KV 100mA 100nS High Voltage Diode Rectifier HF Tesla Coil

This high voltage diode rectifier is perfect for Tesla coil projects. It handles 15KV of repetitive peak reverse voltage and 100mA of average forward current.

Key specs include 20A maximum surge current, 2uA peak reverse current, and 100nS reverse recovery time. Its compact size (Φ3mmx12mm) makes it easy to use.

Each pack includes 12 pieces with axial lead terminals. Ideal for high-frequency applications needing reliable performance.

Pros	Cons
High voltage handling for powerful Tesla coil projects. Fast recovery time ensures efficient performance. Compact size fits easily into tight spaces. Bulk pack of 12 pieces for great value.	Fragile size makes handling tricky High voltage drop reduces efficiency Limited current capacity for bigger projects

Perfect For:

These small, fast diodes keep your Tesla coil experiment safe. Ideal for hobbyists who need a quick, reliable high‑voltage filter.

Ready to Purchase?

View Price on Amazon (paid link)

3. Yetaida 10Pcs 2CL77 Rectifier Diode, High Voltage General Purpose Diodes, Axial Lead Electronic Components for Power Supply & Circuit Protection

Yetaida 10Pcs 2CL77 Rectifier Diode, High Voltage General Purpose Diodes, Axial Lead Electronic Components for Power Supply & Circuit Protection

Get reliable high voltage performance with the Yetaida 2CL77 diodes. They handle up to 2000V reverse voltage with ease. Perfect for power supply and circuit protection.

Built with a sturdy DO-41 epoxy resin body, these diodes resist extreme heat and cold. They work smoothly from -65℃ to +175℃. Strong and stable in tough conditions.

Enjoy low forward voltage for efficient power use. Easy to fit on breadboards and PCBs. Comes in a 10-piece pack for daily projects.

Pros	Cons
High voltage performance up to 2000V for tough applications. Sturdy design works in extreme hot or cold conditions. Low forward voltage ensures efficient power conversion. Easy to use with breadboards and PCB soldering.	No built-in heat protection for high-power applications. Limited quantity (only 10 pieces) for large projects. Axial leads may bend or break during handling.

Perfect For:

Yetaida 10Pcs 2CL77 Rectifier Diodes are perfect for DIY enthusiasts and electronics hobbyists who need reliable, high-voltage components for their projects. Whether you’re working on power supplies, circuit protection, or Arduino/Raspberry Pi builds, these diodes offer sturdy performance and easy compatibility.

Ready to Purchase?

View Price on Amazon (paid link)

4. EEEEE 20A10 Diode Rectifier Diode 20pcs 20 Amp 20A 1000 Volt 1000V Electronic Silicon Diodes high-Current, high-Voltage Rectifier diode in a DO-201AD Package, Ideal for Power Supply Applications.

EEEEE 20A10 Diode Rectifier Diode 20pcs 20 Amp 20A 1000 Volt 1000V Electronic Silicon Diodes high-Current, high-Voltage Rectifier diode in a DO-201AD Package, Ideal for Power Supply Applications.

This 20A10 diode is built for power. It carries 20 amps nonstop. It holds back 1000 volts with ease.

It fights off surge spikes up to 600 amps. It keeps energy loss low with a 1.1 V drop.

Strong build. Great cooling. Long life.

Pros	Cons
Handles 20A continuous current with ease Withstands 1000V for tough high-voltage jobs Survives 600A surge spikes without failure Low 1.1V drop saves energy and cuts heat Rugged build ensures long-lasting performance	Not for low-power projects, overkill for small devices. Large size may limit use in compact designs. Higher cost than standard diodes for basic needs.

Perfect For:

This 20A10 diode rectifier is perfect for anyone building heavy-duty power supplies, inverters, or industrial systems. It’s ideal for high-power and high-voltage projects needing reliable performance.

Ready to Purchase?

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5. Comimark 5 pcs CL04-12 Microwave Oven one-Way High Voltage Diode Rectifier…

The Comimark 5 pcs CL04-12 Microwave Oven one-Way High Voltage Diode Rectifier is a reliable replacement part for your microwave. It works with W10245187, W10492278, and other models.

This 12kV diode handles 0.45A and comes in a pack of 5. It’s a cost-effective solution for your microwave repairs.

Pros	Cons
5-piece pack offers great value for multiple repairs or replacements. High voltage diode ensures reliable microwave oven performance. 12kV rating handles powerful microwave operations efficiently. Easy installation saves time and effort for quick fixes.	Limited to specific microwave models, not universal. No warranty or return policy mentioned. Technical expertise needed for installation.

Perfect For:

This product is perfect for DIY repair lovers and appliance technicians who need a reliable high voltage diode for fixing or maintaining microwave ovens. It’s also great for anyone who wants a cost‑effective pack of 5 to keep repairs simple and stress‑free.

Ready to Purchase?

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6. 10 Pcs CL04-12 Microwave Oven High Voltage Diode Rectifier,Microwave Diode

The CL04-12 Microwave Diode is a high-voltage rectifier designed for microwave ovens. It comes in a pack of 10, making it a cost-effective solution for repairs.

This diode is a direct replacement for models like HVM10, CL01-12, and T4512. It handles 12,000V and 500mA, ensuring reliable performance.

With its durable build, this diode is easy to install and long-lasting. It’s a must-have for fixing microwave oven issues.

Pros	Cons
10-piece pack offers great value for multiple repairs or replacements. High voltage (12,000V) ensures reliable performance in microwave ovens. Compatible with multiple models, making it a versatile choice. Durable design withstands 500mA current for long-lasting use.	Not beginner-friendly — requires technical know-how Limited use — only fits certain microwave models Fragile parts — can break if handled roughly

Perfect For:

This part is great for people who fix microwaves. It works well for repair shops and hobby pros.

Ready to Purchase?

View Price on Amazon (paid link)

7. 100PCS 2CL77 5mA 20kV High Voltage Diode HV Rectifier

High Voltage Diode is a key part for power projects. It handles 20kV with ease. This pack has 100 pieces.

Each diode allows 5mA current. It’s great for rectifying high voltage. Use it in special circuits with confidence.

This product is reliable and durable. It’s perfect for experts and learners alike.

Pros	Cons
High voltage handling up to 20kV for powerful performance. Compact 5mA design for efficient, reliable operation. 100-piece pack offers great value and convenience. Versatile rectifier for diverse high-voltage applications.	High voltage makes handling tricky Specialized use limits everyday applications Bulk pack may be more than needed

Perfect For:

This product is perfect for anyone who needs high-voltage diodes for projects or repairs. It’s great for electronics hobbyists, engineers, or professionals working with high-voltage systems.

Ready to Purchase?

View Price on Amazon (paid link)

8. EEEEE 20 Kinds 200 Diode Assortment Kit 6A10 10A10 20A10 15SQ045 20SQ050 1N34A 1N914 SR560 DB3 1N5349B 1N4001 1N4004 1N4007 1N5404 1N5406 1N5408 1N4148 1N5817 1N5819 1N5822 Zener Schottky Rectifier

EEEEE 20 Kinds 200 Diode Assortment Kit 6A10 10A10 20A10 15SQ045 20SQ050 1N34A 1N914 SR560 DB3 1N5349B 1N4001 1N4004 1N4007 1N5404 1N5406 1N5408 1N4148 1N5817 1N5819 1N5822 Zener Schottky Rectifier

This EEEEE Diode Kit gives you 200 pieces in 20 types. You get rectifier, switching, Schottky, Zener, and even Germanium diodes. Each one is packed in its own labeled box for easy use.

It’s perfect for projects and repairs. With this kit, you’ll always have the right diode ready.

Pros	Cons
20 types in one handy kit Clearly labeled compartments for easy pick Covers rectifier, switching, zener, Schottky diodes 200 pieces for wide project use Great for DIY and repair needs	No storage box included, just separate compartments. Limited quantity of certain high-demand diodes. No detailed datasheet or usage guide provided.

Perfect For:

This EEEEE Diode Assortment Kit is perfect for electronics enthusiasts, hobbyists, and DIYers who need a variety of diodes for their projects. It’s also great for students learning about electronics or engineers working on prototypes.

Ready to Purchase?

View Price on Amazon (paid link)

9. 12pcs 2CL72 10KV 5mA 100nS High Voltage Diode HV Rectifier HF Tesla Coil

This set of 12 high voltage diodes is built for serious projects. Each piece is compact, strong, and ready to handle 10KV with ease.

They run at 5mA average forward current. They recover fast with 100nS reverse recovery time. They stay stable with only 2uA reverse current at 25°C.

Each diode is small at Φ3mm x 8mm. They come with axial leads for easy use. You get a full pack of 12pcs for reliable builds.

Pros	Cons
High voltage handling for powerful applications. Fast recovery time ensures efficient performance. Compact size fits tight spaces easily. Bulk pack offers great value for projects.	Low current capacity limits heavy-duty use Fragile size makes handling tricky High voltage drop reduces efficiency

Perfect For:

This set is perfect for Tesla coil builders, high-voltage hobbyists, and anyone working on HF rectifier projects. It’s made for people who need fast recovery, high voltage handling, and precise performance in compact designs.

Ready to Purchase?

View Price on Amazon (paid link)

10. Yetaida 10A10 Rectifier Diode 10A 1000V – High Current & High Voltage General Purpose Diodes (Pack of 10) – Axial Lead Electronic Components for Power Supply & Circuit Protection

Yetaida 10A10 Rectifier Diode 10A 1000V - High Current & High Voltage General Purpose Diodes (Pack of 10) - Axial Lead Electronic Components for Power Supply & Circuit Protection

The Yetaida 10A10 Rectifier Diode handles high current and high voltage, making it perfect for power supply and circuit protection. It works in extreme temperatures, from -65℃ to +175℃, thanks to its sturdy epoxy resin design. Its low forward voltage ensures efficient power conversion, ideal for DIY projects.

This diode is easy to use with breadboards and PCB soldering, fitting well in Arduino and Raspberry Pi projects. The pack of 10 is affordable and convenient for storage and daily use.

Pros	Cons
High current and voltage for powerful circuit design. Sturdy build works in extreme temperatures (-65℃ to +175℃). Low forward voltage ensures efficient power conversion. Easy to use with breadboards and PCB soldering. Bulk pack of 10 for cost-effective DIY projects.	No built-in heat sink for high-power use. Limited to axial lead design, not surface mount. Bulk pack may be too many for small projects.

Perfect For:

This pack is perfect for DIY makers, electronics hobbyists, and engineers who need high current and high voltage diodes for projects like power supplies, Arduino builds, or circuit protection. Simple, strong, and ready for any PCB or breadboard work.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

High voltage diodes are key parts for many projects and repairs. They handle extreme conditions with ease. Choosing the right diode can make your work succeed.

Buying Guide for Best High Voltage Diodes

When picking high voltage diodes, think about these key factors:

Voltage Rating:
Make sure the diode’s voltage rating matches your project’s needs. Using a diode with too low a rating can cause failure or damage.
Current Handling:
Check the diode’s current rating. It must handle the maximum current your project requires without overheating.
Application Type:
Choose diodes designed for your specific use, like microwave ovens, Tesla coils, or power supplies. This ensures reliable performance.
Size and Packaging:
Consider the diode’s size and packaging. Smaller diodes fit tight spaces, while bulk packs save money for big projects.
Temperature Range:
Look for diodes that work in extreme temperatures if your project faces heat or cold. This ensures longevity and stability.
Surge Protection:
Diodes with anti-surge capability protect your circuit from sudden voltage spikes. This is crucial for sensitive projects.
Brand and Quality:
Pick trusted brands known for durability and reliability. High-quality diodes last longer and perform better.
Price and Value:
Compare prices and pack sizes to get the best value. Buying in bulk often saves money for frequent users.

With these factors in mind, you’ll find the perfect high voltage diodes for your needs. Upgrade your projects with confidence and ease.