The SMD3225-200N Gas Discharge Tube (GDT) from RUILON is a high-voltage surge protection component designed to safeguard electronic systems from lightning strikes, transient overvoltage, and high-energy electrical disturbances. With a nominal DC spark-over voltage of 200V (tested at 100V/µs), it provides fast and accurate triggering, ensuring efficient diversion of surge energy away from sensitive circuit components.
Built using advanced ceramic gas discharge technology, the SMD3225-200N delivers stable impulse spark-over performance (1kV/µs), high insulation resistance, and low capacitance at 1 MHz, making it suitable for high-speed communication lines and signal integrity-sensitive applications. Its strong impulse discharge current capability (8/20µs waveform) and excellent impulse withstand voltage ensure long service life and reliable performance even under repeated surge conditions.
Compared to lower voltage variants, the 200V model offers a higher operating voltage margin, making it ideal for systems requiring improved tolerance in industrial, telecom, and power-related environments. The SMD3225 package provides excellent thermal dissipation, mechanical strength, and supports automated surface-mount assembly, making it well-suited for modern compact PCB designs.
Key Features:
- DC Spark-Over Voltage: 200V @ 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:
- Telecom and networking equipment
- Industrial control systems
- Power supply protection circuits
- Smart meters and IoT devices
- Consumer electronics
- Lightning and transient surge protection systems
