SMD3225-230N Gas Discharge Tubes – SMD3225 Package | RUILON

The SMD3225-230N Gas Discharge Tube (GDT) from RUILON is a high-performance surge protection device designed to protect sensitive electronic systems from lightning-induced surges, transient overvoltage, and high-energy electrical disturbances. With a nominal DC spark-over voltage of 230V (tested at 100V/µs), it delivers fast and precise triggering, ensuring efficient diversion of surge energy away from critical circuit components.

Built using advanced ceramic gas discharge technology, the SMD3225-230N offers stable impulse spark-over performance (1kV/µs), high insulation resistance, and ultra-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 protection even under repeated surge events.

Compared to lower voltage variants, the 230V model provides a higher operating voltage margin, making it ideal for industrial-grade and communication systems that require enhanced voltage tolerance and stable surge protection performance. The SMD3225 package delivers excellent thermal dissipation, mechanical robustness, and supports automated surface-mount assembly, making it suitable for compact and high-density PCB designs.

Key Features:

• DC Spark-Over Voltage: 230V @ 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 systems
• Industrial automation equipment
• Power supply and inverter protection
• Smart meters and IoT devices
• Consumer electronics
• Lightning and surge protection systems