The 3R470A-5S Gas Discharge Tube (GDT) from RUILON is a high-reliability ceramic surge protection device designed to safeguard electronic systems from transient overvoltage events such as lightning strikes and switching surges. With a 470V DC spark-over voltage, this component is ideal for medium- to high-voltage applications requiring stable and effective surge protection.
Engineered with advanced gas discharge technology, the 3R470A-5S provides stable impulse spark-over voltage at 1KV/µs, along with high insulation resistance and low capacitance at 1 MHz, ensuring minimal signal distortion in communication and control circuits. Its capability to withstand high impulse discharge current (8/20µs waveform) ensures excellent surge absorption and extended service life.
Compared to lower voltage GDT variants, the 470V model offers enhanced resistance to false triggering in higher voltage environments while maintaining reliable protection performance. The compact 3RA-5S package supports efficient PCB layouts and dependable operation in space-constrained and demanding designs.
This GDT is widely used in telecommunications equipment, power supplies, industrial automation systems, signal line protection, and surge protection devices (SPD), delivering consistent and long-lasting circuit protection.
Key Features:
- 470V DC spark-over voltage for high-voltage protection
- Stable impulse spark-over performance (1KV/µs)
- High surge current capability (8/20µs waveform)
- Low capacitance for signal-sensitive applications
- High insulation resistance and reliability
- Compact 3RA-5S package for efficient PCB design
- Long service life with high surge endurance
Applications:
- Telecom and networking equipment
- Power supply and adapter protection
- Industrial automation and control systems
- Signal and data line protection
- Surge protection devices (SPD)
- Consumer and communication electronics
