The 2R470SB-8T25 Gas Discharge Tube (GDT) from RUILON is a high-performance ceramic surge protection component designed to protect electronic systems from high-energy transient overvoltages such as lightning strikes and switching surges. With a 470V DC spark-over voltage, this device is ideal for applications requiring higher voltage tolerance and stable protection performance.
Built with advanced gas discharge technology, the 2R470SB-8T25 ensures precise impulse spark-over voltage at 1KV/µs, along with high insulation resistance and low capacitance at 1 MHz, minimizing signal interference in sensitive communication and control circuits. Its capability to handle high impulse discharge current (8/20µs waveform) ensures excellent surge absorption and extended service life.
Compared to lower voltage GDTs, the 470V variant provides improved resistance to false triggering in higher operating voltage environments, making it suitable for industrial and power applications. The compact 2RS-8T25 package supports efficient PCB layout and reliable operation under demanding conditions.
This GDT is widely used in telecommunications equipment, power supplies, industrial automation systems, signal line protection, and surge protection devices (SPD), delivering consistent and long-lasting circuit protection.
Key Features:
- 470V DC spark-over voltage for high-voltage protection
- Stable impulse spark-over performance (1KV/µs)
- High surge current capability (8/20µs waveform)
- Low capacitance for signal-sensitive designs
- High insulation resistance and reliability
- Compact 2RS-8T25 package for space-efficient layouts
- Long service life with high surge endurance
Applications:
- Telecom and networking equipment
- Power supply and adapter protection
- Industrial automation and control systems
- Signal and data line protection
- Surge protection devices (SPD)
- Consumer and communication electronics
