High-voltage resistors

A high voltage resistor is an electrical resistor specifically designed for applications involving high voltages. It is used to precisely measure, limit, divide, or safely dissipate high voltages and is characterized by its high voltage capability, long-term stability, and reliability.

High voltage resistors are used in a wide range of applications, including X-ray equipment, medical technology, measurement and test equipment, drive technology, and industrial high voltage systems.

Metallux AG has been developing and manufacturing thick-film high voltage resistors on ceramic substrates for demanding industrial applications for over 40 years. The portfolio includes both standard and custom solutions offering high precision, excellent long-term stability, and high reliability.

Development and manufacturing take place in Germany – from prototype development to series production for OEMs worldwide.

High voltage resistors from Metallux AG are characterized by reliability, precision, and a high degree of customization. Metallux develops and manufactures high voltage resistors in various designs, including flat resistors and tubular resistors, as well as custom solutions.

The portfolio includes high voltage resistors, pulse resistors, high voltage dividers, high voltage resistor networks, resistors for PCB assembly, and adjustable high voltage potentiometers. In addition to a broad range of standard products, Metallux develops customized solutions tailored precisely to the technical requirements of each application.

With decades of experience in thick-film technology, Metallux has extensive expertise in developing high voltage resistors for demanding applications. The products are used worldwide in areas including medical technology, energy technology, measurement technology, drive and automation technology, and X-ray equipment.

Leading companies worldwide rely on the quality, reliability, and durability of Metallux high voltage resistors.

Yes. High voltage resistors from Metallux AG can be customized to meet the specific requirements of each application. With decades of experience in thick-film technology, Metallux develops custom solutions for OEMs and industrial applications.

Depending on the application, the following characteristics can be customized:

• Resistance values
• Voltage ranges
• Designs and dimensions
• Connections
• Tolerances
• Protective coatings

High voltage resistors are used wherever high voltages need to be precisely measured, limited, divided, or safely dissipated. Typical industries and fields of application include medical technology, X-ray technology, test and measurement technology, energy technology, drive and automation technology, research, and industrial electronics.

Typical applications include:

• Industrial X-ray systems for detecting voids in cast components
• X-ray systems for foreign object detection in the food and beverage industry
• Defibrillators
• Insulation testing equipment
• Electrostatic precipitators
• Spectrometers
• Charging, discharging, and braking resistors in drive technology

High voltage resistors are used in X-ray technology to precisely measure, monitor, and control high voltages. They help ensure reliable and safe operation of X-ray systems while maintaining consistent performance and image quality.

Typical applications include:

• Industrial X-ray systems for detecting voids, cracks, and other defects in cast components
• X-ray inspection systems for foreign object detection in food and beverage production and filling lines
• Medical X-ray systems, including CT scanners and mammography systems
• X-ray baggage scanners at airports and other security checkpoints
• Measurement and test systems for the electrical testing of printed circuit boards (PCBs)
• Inspection systems for distinguishing between filled and empty containers

Metallux AG develops and manufactures thick-film high voltage resistors for demanding applications in X-ray technology. With decades of experience, Metallux offers both standard products and custom high voltage resistors tailored to the specific technical requirements of each X-ray application.

High voltage resistors perform important functions in drive and automation technology, particularly in the control, regulation, and protection of electrical drive systems. They are used as charging resistors, discharging resistors, and braking resistors to limit, dissipate, or safely discharge electrical energy. This helps ensure operational safety, protect electronic components, and maintain the reliable operation of drive systems.

Typical applications include:

• Hoists and chain hoists
• Industrial doors and automatic door drives
• Baggage handling and conveyor systems
• Frequency converters
• Inverters
• Spindle drives
• Capacitors and capacitor banks for safe charging and discharging

Metallux AG develops and manufactures thick-film high voltage resistors for demanding applications in drive and automation technology. In addition to a broad range of standard products, Metallux develops custom high voltage resistors tailored to the specific requirements of each application in terms of resistance value, power rating, design, and environmental conditions.

High voltage resistors are used in energy and environmental technology for voltage measurement and monitoring, power limitation, energy dissipation, and the protection of electrical and electronic components. They are particularly important in power grids, high voltage systems, transformers, and wind energy applications where high voltages must be handled safely and reliably.

Typical applications for high voltage resistors include:

• Voltage transformers and current transformers for precise voltage measurement and monitoring in power grids
• Braking resistors for wind turbines to safely dissipate electrical energy during emergency shutdowns
• High voltage dividers for voltage measurement and monitoring in transformers and high voltage systems

Metallux AG develops and manufactures thick-film high voltage resistors for demanding applications in the energy and environmental technology sector. In addition to a broad range of standard high voltage resistors, Metallux provides custom high voltage resistors tailored to specific requirements in terms of resistance value, operating voltage, power rating, dimensions, design, and environmental conditions.

The long-term stability of a high voltage resistor describes its ability to maintain a consistent resistance value and electrical characteristics over many years of operation. High long-term stability helps ensure reliable measurement results, consistent performance, and a long service life – even under continuous high voltage and demanding environmental conditions.

Long-term stability is particularly important in applications such as high voltage measurement, X-ray technology, medical technology, test and measurement equipment, and industrial high voltage systems.

High voltage resistors from Metallux AG are designed for high long-term stability through an optimized manufacturing process. They are suitable for applications that require consistently precise measurement results and high reliability over a long service life.

Different high voltage resistor technologies are available depending on the electrical and mechanical requirements of the application. Common technologies for high voltage resistors include thick-film technology, thin-film technology, wirewound resistors, and specialized film and composite technologies. Selecting the right high voltage resistor technology depends on factors such as operating voltage, power rating, resistance value, precision, temperature characteristics, and long-term stability.

Metallux AG specializes in thick-film high voltage resistors on ceramic substrates. This proven technology combines high voltage capability with excellent long-term stability, precise resistance values, and a compact design. Thick-film high voltage resistors are particularly suitable for demanding applications in X-ray equipment, medical technology, high voltage measurement, test equipment, and industrial high voltage systems.

With in-house development and manufacturing in Germany, Metallux offers a broad range of standard and custom high voltage resistors for OEM applications. Custom high voltage resistors can be tailored to specific electrical and mechanical requirements – from small production runs to high-volume series production.

The tolerances of high voltage resistors depend on the specific application and its technical requirements. Different precision and tolerance classes are available to ensure accurate resistance values and reliable performance.

Typical high voltage resistor tolerances include ±0.5%, ±1%, ±2%, ±5%, ±10%, and ±20% untrimmed. The appropriate tolerance depends on factors such as the required accuracy, long-term stability, and operating conditions of the application.

Metallux AG develops and manufactures high voltage resistors as both standard products and custom high voltage resistors for OEM applications. Depending on the requirements, resistance value, tolerance, temperature characteristics, and other electrical properties can be tailored to the specific application.

Looking for the right high voltage resistor and tolerance for your application? Contact Metallux to discuss your technical requirements.

Thick-film high voltage resistors offer a number of advantages for demanding industrial applications:

• Compact designs for space-saving integration
• High voltage capability for demanding high voltage applications
• Excellent long-term stability and reliable electrical performance
• Precise resistance values and high accuracy
• Cost-effective solutions based on proven thick-film technology
• Wide range of designs and customization options

Metallux AG has many years of experience in developing and manufacturing thick-film high voltage resistors for demanding industrial applications. In addition to a broad range of standard products, Metallux provides custom high voltage resistors tailored to the electrical, mechanical, and environmental requirements of each application.