SMD4042-470E 470V Gas Discharge Tube – SMD4042 Package | RUILON
RUILON
The SMD4042-470E Gas Discharge Tube (GDT) from RUILON is a high-performance ceramic surge protection device designed to protect electronic circuits from high-energy transient overvoltage events. Utilizing advanced gas discharge technology, it ensures rapid response to lightning strikes, switching surges, and electrostatic discharge (ESD), delivering reliable and long-term circuit protection.
With a DC spark-over voltage of 470V, this component is ideal for medium to high-voltage applications, providing enhanced system stability and reducing the risk of premature triggering compared to lower-voltage GDT series. It features strong impulse spark-over performance (1kV/µs) and supports high impulse discharge current (8/20µs), making it suitable for demanding electrical environments.
The device offers low capacitance at 1 MHz, preserving signal integrity in high-speed communication systems, along with high insulation resistance to minimize leakage current. Stable glow voltage and arc voltage characteristics ensure consistent operation and extended service life.
Encased in a compact SMD4042 package, the SMD4042-470E allows easy surface-mount integration and flexible PCB design. It is widely used in telecommunications, industrial equipment, power systems, smart grid infrastructure, and consumer electronics, delivering dependable surge protection and improved system reliability.
Key Features:
- 470V DC Spark-Over Voltage
- High impulse discharge current capability (8/20µs)
- Fast response to transient overvoltage events
- Low capacitance for signal integrity preservation
- High insulation resistance with low leakage current
- Stable glow and arc voltage characteristics
- Long service life and high reliability
- Compact SMD4042 surface-mount package
Applications:
- Telecommunications and data communication systems
- Power supply and adapter circuits
- Industrial automation and control equipment
- Smart meters and smart grid systems
- Consumer electronics and IoT devices
- Security and surveillance systems
