Cylindrical Thick Film Non-Inductive High Voltage Resistor
Product Overview
Cylindrical thick-film non-inductive high-voltage resistors are high-performance resistive elements specifically designed for high-voltage, pulse, and surge circuits. This series of resistors employs a thick-film non-inductive structure, using high-purity bauxite ceramic (Al₂O₃, purity exceeding 95%) as the substrate. The resistive film is made of a conductive paste composed of precious metals such as silver, ruthenium, and palladium, sintered at 850℃ to ensure excellent thermal conductivity and electrical stability.
The housing can be encapsulated in silicone or glass, allowing for long-term operation in air, high-pressure oil, or epoxy resin environments. The resistor leads utilize tin-plated nuts or screws, ensuring secure and reliable wiring and providing better corrosion resistance and contact stability under high-voltage conditions, making them ideal and reliable components in high-voltage equipment.
Product Technical Specifications
| Item |
Parameter Description |
| Product Name |
Cylindrical Thick Film Non-Inductive High Voltage Resistor |
| Power Range |
0.5W ～ 25W |
| Resistance Accuracy |
±0.5%, ±1%, ±2%, ±5%, ±10% |
| Package Type |
Silicone Encapsulation / Glass Dielectric Encapsulation |
| Working Medium |
Air, High-Pressure Oil, Epoxy Resin |
| Structure Type |
Thick Film Non-Inductive Design |
| Matrix Material |
≥95% High-Purity Alumina Ceramic (Al₂O₃) |
| Sintering Temperature |
Approximately 850℃ High-Temperature Sintering |
| Lead-Out Terminal Structure |
Tinned Copper Pin / Tinned Nut or Screw Connection |
| Advantages |
High Stability, Strong Moisture Resistance, Excellent Surge Resistance |
Product Characteristics | Performance & Features
Excellent High Voltage and Pulse Withstand Performance: Maintains stable resistance under high voltage and energy surge conditions, exhibiting excellent surge resistance.
Inductive Design: Effectively eliminates parasitic inductance, ensuring accurate signal transmission in high-frequency and high-voltage circuits.
Excellent Thermal Stability: Utilizes a high thermal conductivity ceramic substrate and precious metal resistive film, providing excellent heat dissipation and extremely low resistance drift.
Reliable Lead-Out Terminal Connection: Tin-plated nuts or screws facilitate mechanical fixing and connection to high-voltage terminals, offering corrosion resistance and vibration resistance.
High Environmental Adaptability: Maintains long-term reliable operation in media such as air, high-pressure oil, and epoxy resin.
Applications
Cylindrical thick-film non-inductive high-voltage resistors are widely used in applications requiring high voltage withstand and pulse suppression, such as:
- High Voltage Power Supplies
- Electrostatic & Discharge Systems
- Medical CT Scanners & X-ray Machines
- High Voltage Test & Measurement Equipment
- Vacuum & Pressure Control Circuits
