The RUILON 2R4000T-8 Gas Discharge Tube (GDT) is a high-voltage ceramic surge protection component engineered to deliver reliable overvoltage safeguarding for sensitive electronic and industrial systems. With a DC spark-over voltage rating of 4000V, this device provides strong insulation performance and precise breakdown control, ensuring effective protection against lightning surges, switching transients, and electrostatic discharge events.
Built using advanced gas discharge technology, the 2R4000T-8 offers ultra-low capacitance and high insulation resistance, making it highly suitable for high-speed signal lines and communication interfaces where signal integrity is critical. It reacts rapidly under surge conditions, efficiently diverting high-energy transients away from vulnerable downstream components.
Compared to lower-voltage protection devices, this 4000V-rated GDT offers improved surge endurance, reduced false triggering, and enhanced stability under extreme electrical stress. Its ceramic-sealed structure ensures consistent glow and arc voltage behavior, long operational life, and excellent thermal performance even in repeated surge environments.
The compact 2R-8 package design enables easy PCB integration in space-constrained applications while maintaining high reliability. The RUILON 2R4000T-8 is widely used in telecommunications systems, industrial control equipment, power supply units, outdoor electronics, and surge protection modules, where robust high-voltage protection and long-term durability are essential.
Key Features:
- High DC spark-over voltage: 4000V
- Excellent surge handling capability (8/20µS impulse current)
- Ultra-low capacitance for high-speed signal protection
- High insulation resistance for improved safety performance
- Fast response to lightning and transient voltage surges
- Long service life under repetitive surge conditions
- Stable glow and arc voltage characteristics
- Compact ceramic sealed 2R-8 SMD package
- Strong thermal stability and mechanical durability
Applications:
- Telecom line protection and communication systems
- Industrial automation and control equipment
- Power supply surge protection circuits
- Outdoor electronics and harsh environment devices
- Smart grid and smart metering systems
- Data transmission and signal line protection
- Lightning and transient surge protection modules
- Consumer and industrial electronic systems
