The SMD4532-300NF Gas Discharge Tube (GDT) from RUILON is a high-reliability surge protection component engineered to protect electronic circuits from lightning strikes, transient overvoltage, and high-energy surge events. With a nominal DC spark-over voltage of 300V (tested at 100V/µs), it delivers fast and stable triggering, effectively diverting surge currents away from sensitive components and ensuring long-term system protection.
Built with advanced ceramic gas discharge technology, the SMD4532-300NF provides consistent impulse spark-over performance at 1kV/µs, along with high insulation resistance and low capacitance at 1 MHz. This makes it highly suitable for high-speed communication lines and precision electronics where maintaining signal integrity is critical. Its strong impulse discharge current capability (8/20µs waveform) and high impulse withstanding voltage ensure reliable operation and extended service life under repeated surge conditions.
Compared to lower voltage variants, the 300V model offers significantly higher voltage tolerance and enhanced protection margins, making it ideal for industrial applications, power systems, and telecom infrastructure. The SMD4532 package enhances thermal dissipation, supports higher surge current handling, and ensures robust mechanical strength, while enabling efficient surface-mount assembly for modern PCB designs.
Key Features:
- DC Spark-Over Voltage: 300V @ 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 systems
- Industrial automation and control equipment
- Power supply and inverter protection
- Smart grid and metering solutions
- Consumer electronics and IoT devices
- Lightning and surge protection circuits
