The SMD5050-470NA Gas Discharge Tube (GDT) from RUILON is a high-performance surge protection device designed to protect electronic systems from lightning strikes, transient overvoltage, and high-energy surge disturbances. With a nominal DC spark-over voltage of 470V (tested at 100V/µs), it provides fast and reliable triggering, effectively diverting surge currents away from sensitive components and ensuring stable system operation.
Manufactured using advanced ceramic gas discharge technology, the SMD5050-470NA delivers stable impulse spark-over characteristics at 1kV/µs, along with high insulation resistance and low capacitance at 1 MHz. These features make it highly suitable for high-speed communication lines and precision electronic applications where signal integrity is critical. Its strong impulse discharge current capability (8/20µs waveform) and excellent impulse withstanding voltage ensure long service life and consistent performance even under repeated surge conditions.
Compared to lower voltage variants, the 470V model offers significantly higher voltage tolerance and enhanced protection margins, making it ideal for industrial automation systems, telecom infrastructure, and power supply applications. The SMD5050 package provides superior thermal dissipation, higher surge current handling capability, and robust mechanical strength, while supporting efficient surface-mount assembly for modern PCB designs.
Key Features:
- DC Spark-Over Voltage: 470V @ 100V/µS
- Stable impulse spark-over voltage @ 1kV/µS
- High surge current capability (8/20µS)
- Low capacitance @ 1 MHz for signal integrity
- High insulation resistance
- Superior thermal performance (SMD5050 package)
- Long service life and high reliability
Applications:
- Telecom and networking systems
- Industrial automation and control equipment
- Power supply and inverter protection
- Smart grid and metering systems
- Consumer electronics and IoT devices
- Lightning and surge protection circuits
