High-Voltage Diodes: The Reliable Cornerstone of High-Voltage Circuits

In high-voltage application circuits, ordinary semiconductor components struggle to meet voltage resistance requirements, making high-voltage diodes a critical choice. As a semiconductor device specifically designed for high reverse voltage environments, it can operate stably at kilovolt (kV) or even ten-thousand-volt levels without breakdown. Its core function is to achieve "unidirectional conduction" of current, i.e., rectification.

High-voltage diodes still adhere to the basic principle of "unidirectional conductivity," but their key advantage lies in withstanding ultra-high voltages ranging from several thousand to tens of thousands of volts. To achieve this performance, three major technical challenges must be overcome:

• Achieving high voltage resistance: High-resistivity materials and special structural designs are adopted in the manufacturing process to smooth the electric field distribution and prevent premature breakdown of the device.

• Balancing turn-off speed: Traditional high-voltage diodes have slow turn-off speeds, suitable for power frequency rectification scenarios; while in high-frequency circuits, high-voltage fast recovery diodes with faster turn-off speeds are required.

• Withstanding surge current: The device must feature a robust internal structure and connection technology to withstand the transient high-current impact generated during equipment startup.

Wuxi Xuyang Electronics' Technical Solution: Multi-Chip Series Integration and 2CL Series Analysis

Faced with the above technical challenges, Wuxi Xuyang Electronics, an enterprise specializing in semiconductor manufacturing since 2001, adopts mature and reliable multi-chip series integration technology to develop high-performance high-voltage diode products.

The core of this technology lies in physically connecting multiple rigorously screened diode chips in series through advanced packaging and internal connection processes. Based on the principle of series voltage division, the high voltage applied across the device is evenly distributed to each chip, thereby increasing the voltage resistance capacity from approximately 1000V for a single chip to 20,000V to 30,000V, providing a solid and reliable solution for various high-voltage rectification applications.

Taking our flagship product, the 2CL Series High-Voltage Diodes, as an example:

This series not only boasts a reverse peak voltage of up to 20kV but also controls the maximum reverse recovery time within 100ns, falling into the category of high-voltage fast recovery diodes. It can operate efficiently in high-frequency switching circuits, significantly reducing switching losses and electromagnetic interference while expanding application boundaries.

The 2CL2F-2CL2FM models within the series, as medium-current products, offer an average rectified current of 100mA combined with 20kV voltage resistance. Achieving an excellent balance between reliability, performance, and cost, they have become the ideal choice for the design of numerous high-voltage low-power circuits.

Wide Application Fields: Injecting Core Power into High-Energy Equipment

With outstanding voltage resistance and fast recovery characteristics, Xuyang Electronics' high-voltage diodes have become indispensable core components in various high-voltage equipment:

• Consumer Electronics and Home Appliances: Widely used in CRT TVs, monitors, microwave ovens, and other devices to complete the rectification of high-voltage AC to DC, driving magnetrons or generating anode high voltage.

• Medical and Industrial Equipment: Serving as the rectification core in the power supply systems of X-ray machines, CO₂ lasers, and other equipment, providing high-voltage DC power required for electron acceleration or laser excitation.

• Environmental Protection and Special Power Supplies: Suitable for electrostatic precipitators, air purifiers, electrostatic spraying equipment, etc., used to generate high-voltage electrostatic fields for particle adsorption or directional spraying.

If you are seeking high-performance, high-reliability high-voltage diodes for your project, please feel free to contact us. Our technical team will provide professional product selection recommendations and technical support based on your specific parameters and application requirements.