Engineered for demanding high-voltage applications, our thick-film cylindrical high-voltage resistors deliver exceptional performance, reliability, and versatility. These robust components are specifically designed to meet the rigorous requirements of modern power electronics, industrial systems, and test equipment—serving as critical voltage equalizing resistors, sampling resistors, and high-voltage load resistors in a wide range of configurations.
Unmatched Performance Across Key Parameters
Our high-voltage resistors feature a broad power rating from 1W to 300W, enabling seamless integration into both low-power control circuits and high-energy industrial systems. With an extensive resistance range spanning 1 Ω to 10 GΩ, engineers can select the ideal value for precise voltage division, current measurement, or energy dissipation. Available tolerances from 0.1% to 10% ensure flexibility—whether your application demands laboratory-grade accuracy or cost-effective general-purpose performance.
Thermal stability is guaranteed through a low temperature coefficient of resistance (TCR) between 15 ppm/°C and 100 ppm/°C, minimizing drift under varying operating temperatures. Crucially, these resistors exhibit ultra-low parasitic inductance (<80 nH), making them exceptionally well-suited for high-frequency switching circuits, fast transient environments, and precision analog applications where inductive artifacts must be eliminated.
Core Applications: Precision, Protection, and Power Management
- Voltage Equalizing Resistors In high-voltage systems utilizing series-connected components—such as capacitors, IGBTs, or thyristors—voltage imbalances can lead to catastrophic failures. Our resistors act as reliable voltage equalizing resistors, connected in parallel across each device to ensure uniform voltage distribution. This passive balancing technique enhances system longevity, improves safety, and is essential in DC-link circuits, HVDC transmission, and pulsed power systems.
- Sampling Resistors / Shunt Resistors For accurate real-time current monitoring, our resistors serve as high-precision sampling resistors (also known as shunt resistors). By measuring the small voltage drop across the resistor, control systems can calculate current flow with high fidelity. Thanks to tight tolerance options and low TCR, they are ideal for motor drives, power supplies, battery management systems (BMS), and renewable energy inverters—where efficiency and feedback accuracy are paramount.
- High-Voltage Load Resistors During testing, commissioning, or emergency discharge scenarios, controlled energy dissipation is critical. Our components function effectively as high-voltage load resistors, safely absorbing and converting excess electrical energy into heat. Applications include capacitor bank discharge, high-voltage power supply testing, dummy loads for RF amplifiers, and fail-safe braking circuits in industrial machinery.
Why Choose Our Thick-Film Cylindrical Resistors?
Manufactured using advanced thick-film deposition technology on high-purity ceramic substrates, these cylindrical resistors offer superior pulse handling, long-term stability, and excellent high-voltage insulation. Their compact, robust design ensures reliable operation in harsh environments, while the cylindrical form factor facilitates easy mounting and efficient heat dissipation—especially when paired with heatsinks or liquid cooling solutions for high-power variants.
Ideal for: Power electronics, medical imaging (X-ray, CT scanners), industrial automation, electric vehicle charging infrastructure, aerospace systems, and high-voltage laboratory equipment.
Optimize your high-voltage circuit design with a single-component solution that excels as a voltage equalizing resistor, sampling resistor, and high-voltage load resistor. Backed by stringent quality control and scalable manufacturing, our thick-film cylindrical resistors provide the performance, durability, and value your application demands.
