SMD3225-090N Gas Discharge Tubes – SMD3225 Package | RUILON

The SMD3225-090N Gas Discharge Tube (GDT) from RUILON is a high-reliability surge protection device designed to safeguard sensitive electronic circuits from lightning strikes, transient overvoltage, and electrostatic discharge events. With a nominal DC spark-over voltage of 90V (tested at 100V/µs), it ensures fast and accurate triggering, efficiently diverting surge energy away from critical components and improving system durability.

Built with advanced ceramic gas discharge technology, the SMD3225-090N delivers stable impulse spark-over characteristics (1kV/µs), high insulation resistance, and low capacitance at 1 MHz, making it ideal for high-speed data and communication lines where signal integrity must be preserved. Its strong impulse discharge current capability (8/20µs waveform) and excellent impulse withstand voltage ensure long-term reliability under repeated surge stress.

Compared to lower voltage variants, the 90V model provides a balanced combination of sensitivity and voltage tolerance, making it suitable for a wide range of industrial and communication applications. The SMD3225 package offers enhanced thermal performance and higher surge handling capability compared to smaller SMD formats, while supporting automated surface-mount assembly for efficient PCB manufacturing.

Key Features:

• DC Spark-Over Voltage: 90V @ 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 protection circuits
• Smart meters and IoT devices
• Consumer electronics
• Lightning and surge protection systems