In the field of power electronics and industrial equipment, tubular resistors play a critical role. They are not only used for energy absorption and voltage control but also widely applied in high-energy pulse and high-voltage systems. At EAK, we are committed to delivering high-performance, highly reliable electronic component solutions. Our tubular resistor series stands out in the industry thanks to its non-inductive design, high-temperature resistance, and exceptional power-handling capabilities.
What Are Tubular Resistors?
Tubular resistors are ceramic-based resistive components typically designed in a cylindrical shape, offering excellent thermal stability and mechanical strength. These resistors are especially suitable for applications that require withstanding high peak power or high-energy pulses. Compared to traditional wirewound or film resistors, tubular resistors offer the key advantage of being non-inductive , with uniform energy distribution, avoiding failures caused by localized overheating.
EAK’s tubular resistors utilize advanced ceramic technology to ensure stable performance even under extreme environmental conditions, making them an ideal choice for demanding industrial applications.
Key Advantages of EAK Tubular Resistors
- Non-Inductive Design for High Stability EAK’s tubular resistors use an integrated ceramic structure that completely eliminates inductive effects. This makes them ideal for use in high-frequency circuits, RF loads, and motor drives where response speed and system stability are crucial.
- High-Temperature Resistance and Long Lifespan Our tubular resistors can operate continuously at temperatures up to 350°C and withstand short-term temperatures as high as 600°C . This excellent thermal stability significantly extends product life and reduces maintenance frequency and costs.
- Multiple Types to Meet Diverse Needs EAK offers three main types of tubular resistors:
- Type SP : Designed for high-temperature environments, with a maximum continuous operating temperature of 350°C , suitable for oil immersion without requiring an oil-resistant coating.
- Type AS : Ideal for high-energy and high-voltage pulse applications, with a maximum continuous operating temperature of 230°C .
- Type A : High-power, non-inductive resistors suitable for general industrial applications.
- Exceptional Power and Energy Handling Capabilities EAK tubular resistors can handle up to 1000W of continuous power, 165kJ of peak energy, and 165kV of peak voltage—capable of meeting even the most challenging working conditions.
- Flexible Terminal Configurations We offer a variety of terminal options (e.g., silver-plated, nickel-plated, radial leads, arc-free terminals) to meet specific installation and connection requirements.
Wide Range of Applications
Thanks to their outstanding electrical and physical performance, EAK tubular resistors have been widely adopted across multiple key industries:
- Industrial Automation : Motor drives, dynamic braking, transformer protection
- Energy and Power Systems : Harmonic filters, high-voltage power supplies, capacitor charging/discharging
- Medical Equipment : X-ray machines, laser imaging devices, impulse generators
- Test & Measurement : Snubber circuits, RF dummy loads
- New Energy Technologies : Wind power converters, EV charging systems
Whether in high-temperature oil-cooled environments or under high-energy pulse conditions, EAK tubular resistors deliver consistent and reliable performance.
