Engineered for demanding high-voltage applications, our thick-film cylindrical high-voltage resistors deliver exceptional performance, reliability, and versatility. Designed using advanced thick-film technology on robust cylindrical substrates, these resistors are ideal for critical roles such as voltage equalizing resistors, sampling resistors (shunt resistors), and high-voltage load resistors in industrial, power electronics, and test & measurement systems.
High-Power Thick-Film Cylindrical High-Voltage Resistors
Why Choose Our Thick-Film High-Voltage Resistors?
Our resistors are meticulously crafted to meet the rigorous requirements of modern high-voltage circuits. With a power rating ranging from 1W to 300W, they support applications from low-power control circuits to high-energy dissipation systems. The resistance range spans an impressive 1 Ω to 10 GΩ, offering unmatched flexibility for diverse circuit designs—whether you need a low-ohmic shunt for precise current measurement or a gigaohm resistor for voltage division in ultra-high-voltage environments.
Key Features & Specifications:
- Power Rating: 1W – 300W
- Resistance Range: 1 Ω – 10 GΩ
- Tolerance (Accuracy): 0.1% – 10% (customizable based on application needs)
- Temperature Coefficient of Resistance (TCR): 15 ppm/°C – 100 ppm/°C, ensuring stable performance across varying thermal conditions
- Ultra-Low Parasitic Inductance: < 80 nH, making these resistors highly suitable for fast-switching and high-frequency applications where inductive effects must be minimized
Primary Applications:
- Voltage Equalizing Resistors In high-voltage systems where components like capacitors or thyristors are connected in series, slight imbalances in leakage current or capacitance can cause uneven voltage distribution—potentially leading to catastrophic failure. Our resistors act as reliable voltage equalizing resistors, connected in parallel across each component to ensure uniform voltage sharing and enhance system longevity and safety.
- Sampling Resistors (Shunt Resistors) Accurate current monitoring is essential in power supplies, motor drives, battery management systems, and renewable energy inverters. As high-precision sampling resistors, our thick-film cylindrical resistors enable real-time current measurement by converting current flow into a measurable voltage drop (per Ohm’s Law: V = I × R). With tight tolerance options down to 0.1% and low TCR, they provide consistent, drift-free readings even under thermal stress.
- High-Voltage Load Resistors During testing, commissioning, or emergency discharge of high-voltage equipment—such as DC link capacitors, X-ray generators, or pulsed power systems—a controlled energy dump path is critical. Our resistors serve as robust high-voltage load resistors, safely absorbing and dissipating large amounts of energy while maintaining structural and electrical integrity under extreme conditions.
Engineered for Reliability and Performance
The thick-film deposition process ensures excellent adhesion, long-term stability, and resistance to high-voltage arcing. The cylindrical form factor promotes uniform heat distribution and facilitates efficient thermal management—especially when mounted on heatsinks or used in forced-air or liquid-cooled environments. This makes them particularly well-suited for high-power liquid-cooled resistor designs, where thermal performance is paramount.
Ideal for Demanding Industries These resistors are widely deployed in:
- High-voltage power supplies
- Industrial motor drives and inverters
- Medical imaging equipment (e.g., CT scanners, X-ray machines)
- Electric vehicle (EV) charging infrastructure
- Renewable energy systems (solar/wind inverters)
- High-voltage laboratory and production testing setups
Conclusion When your application demands precision, high voltage endurance, and dependable performance, our thick-film cylindrical high-voltage resistors are the optimal choice. Whether you’re designing a safety-critical voltage equalizing network, a high-accuracy current sampling circuit, or a rugged high-voltage load bank, our components deliver the engineering excellence you can trust.
Explore our full range today and power your innovation with resistors built for the extremes.
