SMD4042-800E 800V Gas Discharge Tube – SMD4042 Package | RUILON
RUILON
The SMD4042-800E Gas Discharge Tube (GDT) from RUILON is a high-voltage ceramic surge protection device engineered to provide robust protection against extreme 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-lasting circuit protection.
With a DC spark-over voltage of 800V, this component is optimized for high-voltage applications requiring greater surge tolerance and operational stability. Compared to lower-voltage GDT series, it effectively minimizes the risk of false triggering while maintaining strong surge suppression performance. The device supports high impulse discharge current (8/20µs) and offers excellent impulse spark-over characteristics (1kV/µs), making it suitable for harsh electrical environments.
The low capacitance at 1 MHz helps preserve signal integrity in high-speed communication systems, while high insulation resistance reduces leakage current and enhances efficiency. Stable glow voltage and arc voltage characteristics ensure consistent performance and extended service life.
Encased in a compact SMD4042 package, the SMD4042-800E allows easy surface-mount integration and flexible PCB layouts. It is widely used in telecommunications systems, industrial equipment, power infrastructure, smart grid solutions, and consumer electronics, providing dependable surge protection and improved system reliability.
Key Features:
- 800V DC Spark-Over Voltage
- High impulse discharge current capability (8/20µs)
- Fast response to high-energy transient surges
- 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 high-voltage circuits
- Industrial automation and control equipment
- Smart meters and smart grid infrastructure
- Consumer electronics and IoT devices
- Security and surveillance systems
