SMD4532-470NF Gas Discharge Tubes – SMD4532 Package | RUILON

The SMD4532-470NF Gas Discharge Tube (GDT) from RUILON is a high-reliability surge protection component engineered to safeguard electronic systems from lightning strikes, transient overvoltage, and high-energy surge events. With a nominal DC spark-over voltage of 470V (tested at 100V/µs), it ensures fast and stable triggering, efficiently diverting surge currents away from sensitive circuitry and enhancing overall system protection.

Built with advanced ceramic gas discharge technology, the SMD4532-470NF delivers consistent 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 electronics where maintaining signal integrity is essential. Its strong impulse discharge current capability (8/20µs waveform) and excellent impulse withstanding voltage ensure long service life and reliable performance under repeated surge conditions.

Compared to lower voltage variants, the 470V model offers significantly higher voltage tolerance and enhanced protection margins, making it suitable for demanding industrial environments, telecom infrastructure, and power systems. The SMD4532 package provides superior thermal dissipation, higher surge handling capability, and robust mechanical durability, while enabling efficient surface-mount assembly for modern PCB designs.

Key Features:

• DC Spark-Over Voltage: 470V @ 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 energy infrastructure
• Consumer electronics and IoT devices
• Lightning and surge protection circuits