The SMD4532-350NF Gas Discharge Tube (GDT) from RUILON is a high-performance surge protection device designed to safeguard electronic circuits from lightning strikes, transient overvoltage, and high-energy surge disturbances. With a nominal DC spark-over voltage of 350V (tested at 100V/µs), it provides fast and reliable triggering, efficiently diverting surge currents away from sensitive components and ensuring stable system operation.
Engineered with advanced ceramic gas discharge technology, the SMD4532-350NF delivers stable impulse spark-over performance at 1kV/µs, along with high insulation resistance and low capacitance at 1 MHz. These characteristics make it ideal for high-speed communication lines and precision electronic applications where signal integrity is essential. Its strong impulse discharge current capability (8/20µs waveform) and excellent impulse withstanding voltage ensure long service life and consistent performance even under repeated surge conditions.
Compared to lower voltage variants, the 350V model offers enhanced voltage tolerance and higher protection margins, making it suitable for industrial systems, telecom infrastructure, and power-related applications. The SMD4532 package ensures superior thermal dissipation, higher surge handling capability, and robust mechanical durability, while supporting efficient surface-mount assembly for modern PCB designs.
Key Features:
- DC Spark-Over Voltage: 350V @ 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
- Enhanced thermal performance (SMD4532 package)
- Long service life and high reliability
Applications:
- Telecom and networking equipment
- Industrial automation systems
- Power supply and inverter protection
- Smart grid and metering systems
- Consumer electronics and IoT devices
- Lightning and transient surge protection circuits
