The SMD3225-800N Gas Discharge Tube (GDT) from RUILON is a high-voltage surge protection component designed to protect electronic systems from lightning strikes, transient overvoltage, and extreme electrical disturbances. With a nominal DC spark-over voltage of 800V (tested at 100V/µs), it provides fast and reliable activation, ensuring efficient diversion of high-energy surge currents away from sensitive circuitry.
Manufactured using advanced ceramic gas discharge technology, the SMD3225-800N delivers stable impulse spark-over characteristics (1kV/µs), high insulation resistance, and ultra-low capacitance at 1 MHz, making it suitable for high-speed communication lines and signal-sensitive applications where maintaining signal integrity is critical. Its strong impulse discharge current capability (8/20µs waveform) and excellent impulse withstand voltage ensure long service life and consistent performance under repeated surge events.
Compared to lower voltage variants, the 800V model offers significantly higher operating voltage tolerance and enhanced protection margin, making it ideal for industrial, telecom, and high-power system applications. The SMD3225 package provides excellent thermal dissipation, mechanical robustness, and compatibility with automated surface-mount assembly, ensuring flexibility for modern PCB design and manufacturing.
Key Features:
- DC Spark-Over Voltage: 800V @ 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
- Long service life and high reliability
- Compact SMD3225 surface-mount package
Applications:
- Industrial power systems
- Telecom and networking infrastructure
- Smart grid and energy systems
- Power supply and inverter protection
- Consumer electronics and IoT devices
- Lightning and surge protection circuits
