Engineered for Reliability in High-Stress Electrical Environments
Pulse Resistor
Introducing our premium High-Energy Pulse Resistor, a robust ceramic carbon resistor specifically designed for critical current-limiting applications in high-voltage and high-energy systems. Ideal for use as a protective load resistor following fault conditions, this component delivers exceptional performance under extreme thermal and electrical stress, ensuring system safety and longevity.
Key Specifications at a Glance:
- Resistance Value: 3,300 Ω ±10%
- Dielectric Withstanding Voltage: 10 kV
- Operating Temperature Range: Up to 250°C continuous use
- Physical Dimensions: Diameter: 3.0 mm ±0.3 mm, Total Height (including electrodes): 28.6 mm ±1 mm
- Material Density: 2.2–2.65 g/cm³
- Temperature Coefficient of Resistance (TCR): –0.15% to –0.01%/°C
- Energy Absorption Capacity:
- 90 J/cm³ in ambient air
- 1,000 J/cm³ in SF₆ (sulfur hexafluoride) insulation environments
Superior Performance in Pulse and Surge Applications
This pulse resistor is constructed from high-purity ceramic carbon composite, offering outstanding thermal stability and mechanical durability. Its negative temperature coefficient (NTC) behavior ensures that resistance decreases slightly as temperature rises—a characteristic that enhances self-regulating performance during high-current transients. This makes the resistor particularly effective in fault current limiting, capacitor discharge circuits, power supply inrush limiting, and high-voltage testing equipment.
The compact yet rugged design (3 mm diameter × 28.6 mm height) allows for easy integration into space-constrained systems without compromising on energy-handling capability. The integrated electrodes ensure low contact resistance and reliable electrical connections, even under repeated high-energy pulses.
Unmatched Energy Handling in Diverse Environments
One of the standout features of this resistor is its exceptional energy absorption capacity. In standard air-cooled setups, it safely dissipates up to 90 joules per cubic centimeter. When deployed in SF₆-insulated systems—common in high-voltage switchgear and circuit breakers—its energy tolerance soars to an industry-leading 1,000 J/cm³. This dramatic increase is due to SF₆’s superior dielectric strength and thermal conductivity, which enhance cooling and prevent arcing or thermal runaway.
Thermal and Electrical Stability for Demanding Applications
With a maximum operating temperature of 250°C, this resistor maintains structural integrity and electrical performance even in harsh industrial or outdoor environments. The tightly controlled TCR (–0.15% to –0.01%/°C) minimizes resistance drift during thermal cycling, ensuring consistent circuit behavior over time. The ceramic carbon matrix also provides excellent resistance to oxidation, moisture, and chemical corrosion—critical for long-term reliability in demanding applications such as:
- High-voltage power electronics
- Medical imaging equipment (e.g., X-ray and CT scanners)
- Industrial laser systems
- Renewable energy inverters
- Electric vehicle charging infrastructure
- Military and aerospace pulse power systems
Quality Assurance and Compliance
Manufactured under stringent quality control protocols, each resistor undergoes rigorous testing for resistance tolerance, dielectric strength, and pulse endurance. The 10 kV insulation rating guarantees safe operation in high-potential environments, while the ±10% resistance tolerance meets standard industrial requirements for precision and interchangeability.
Why Choose Our Ceramic Carbon Pulse Resistor?
- High energy density for compact, efficient designs
- Robust construction for extended service life
- Versatile compatibility with air and SF₆ environments
- Stable performance across wide temperature ranges
- Proven reliability in mission-critical applications
Whether you’re designing next-generation power systems or upgrading legacy infrastructure, our 3.3 kΩ ceramic carbon pulse resistor offers the perfect balance of performance, safety, and durability.
