SMD3216-300N Gas Discharge Tubes – SMD3216 Package | RUILON

The SMD3216-300N Gas Discharge Tube (GDT) from RUILON is a high-voltage surge protection component engineered to protect electronic circuits from lightning strikes, transient overvoltage, and high-energy surge disturbances. With a nominal DC spark-over voltage of 300V (tested at 100V/µs), it ensures fast and dependable triggering, effectively diverting surge currents and preventing damage to sensitive components.

Built using advanced ceramic gas discharge technology, the SMD3216-300N offers stable impulse spark-over performance (1kV/µs), high insulation resistance, and low capacitance at 1 MHz, making it suitable for high-frequency communication lines and signal-sensitive applications with minimal interference. Its strong impulse discharge current capability (8/20µs waveform) and high impulse withstanding voltage ensure excellent durability and long service life under repeated surge conditions.

Compared to lower voltage GDT series, the 300V variant provides significantly higher voltage tolerance and enhanced protection margin, making it ideal for applications operating in higher voltage environments. The compact SMD3216 package enables efficient PCB layout and supports automated surface-mount assembly, making it suitable for modern, space-constrained designs.

Key Features:

• DC Spark-Over Voltage: 300V @ 100V/µs
• Stable impulse spark-over voltage @ 1kV/µs
• High impulse discharge current capability (8/20µs)
• Low capacitance @ 1 MHz for signal integrity
• High insulation resistance
• Long service life and high reliability
• Compact SMD3216 surface-mount package

Applications:

• Telecom and networking infrastructure
• Industrial control and automation systems
• Power supply and inverter protection
• Smart meters and communication devices
• Consumer electronics and IoT systems
• Lightning and surge protection circuits