2R470TD-8 470V Gas Discharge Tube – 2RD-8 Package | RUILON
RUILON
The 2R470TD-8 Gas Discharge Tube (GDT) from RUILON is a high-performance ceramic surge protection device designed to safeguard sensitive electronic circuits from high-energy transient overvoltage events such as lightning strikes, switching surges, and electrostatic discharge (ESD). Utilizing advanced gas discharge technology, it delivers ultra-fast response and stable long-term protection in demanding electrical environments.
With a DC spark-over voltage of 470V, this component is optimized for medium to high-voltage surge protection applications, providing a strong balance between protection sensitivity and operational stability. Compared to lower-voltage GDT variants, it reduces false triggering while ensuring reliable activation during severe transient events. The device supports high impulse discharge current (8/20µs) and delivers excellent impulse spark-over performance (1kV/µs) for effective surge suppression.
The device features low capacitance at 1 MHz, helping preserve signal integrity in high-speed communication systems, while high insulation resistance minimizes leakage current and improves overall efficiency. Stable glow voltage and arc voltage characteristics ensure consistent operation, strong energy handling capability, and long service life under repeated surge conditions.
Encased in a compact 2RD-8 package, the 2R470TD-8 allows easy PCB integration for space-constrained designs. It is widely used in telecommunications equipment, power supplies, industrial automation systems, smart meters, and consumer electronics, delivering dependable surge protection and enhanced system reliability.
Key Features:
- 470V DC Spark-Over Voltage
- High impulse discharge current capability (8/20µs)
- Fast response to transient overvoltage events
- Low capacitance for signal integrity preservation
- High insulation resistance with low leakage current
- Stable glow and arc voltage characteristics
- Long service life and high reliability
- Compact 2RD-8 package
Applications:
- Telecommunications systems and data communication lines
- Power supply and industrial electronics
- Smart meters and smart grid systems
- Industrial automation and control equipment
- Consumer electronics and IoT devices
- Security and surveillance systems
