The 3R090A-5S Gas Discharge Tube (GDT) from RUILON is a compact and reliable ceramic surge protection device designed to protect sensitive electronic circuits from transient overvoltage events such as lightning surges and switching spikes. Featuring a 90V DC spark-over voltage, this component is ideal for low-voltage applications requiring fast response and stable protection.
Built with advanced gas discharge technology, the 3R090A-5S delivers consistent impulse spark-over voltage at 1KV/µs, along with high insulation resistance and low capacitance at 1 MHz, ensuring minimal signal distortion in high-speed communication lines. Its strong capability to withstand high impulse discharge current (8/20µs waveform) provides effective surge absorption and long service life.
Compared to higher voltage GDT variants, the 90V model allows earlier triggering for rapid suppression of transient surges, making it well-suited for protecting sensitive and low-voltage components. The compact 3RA-5S package supports efficient PCB layout and reliable performance in space-constrained designs.
This GDT is widely used in telecommunications equipment, signal line protection, consumer electronics, industrial automation systems, and surge protection devices (SPD), ensuring dependable and long-lasting circuit protection.
Key Features:
- 90V DC spark-over voltage for low-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 space-saving designs
- Long service life with high surge endurance
Applications:
- Telecom and data communication lines
- Signal and interface protection
- Consumer electronics and smart devices
- Industrial automation systems
- Surge protection devices (SPD)
- Networking and communication equipment
