The 3R250SB-8S Gas Discharge Tube (GDT) from RUILON is a high-reliability ceramic surge protection device designed to safeguard electronic circuits from transient overvoltage events such as lightning strikes and switching surges. Featuring a 250V DC spark-over voltage, this component provides an optimal balance between fast response and stable protection for medium-voltage applications.
Built with advanced gas discharge technology, the 3R250SB-8S delivers 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 lines. Its strong capability to withstand high impulse discharge current (8/20µs waveform) ensures efficient surge absorption and long service life.
Compared to lower voltage GDT variants, the 250V model reduces nuisance triggering while maintaining reliable and fast surge suppression performance, making it suitable for a wide range of electronic systems. The compact 3RB-8S package supports efficient PCB layout and dependable operation in space-constrained applications.
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:
- 250V DC spark-over voltage for stable protection
- Stable impulse spark-over performance (1KV/µs)
- High surge current capability (8/20µs waveform)
- Low capacitance for signal integrity
- High insulation resistance and reliability
- Compact 3RB-8S package for efficient PCB design
- Long service life with high surge endurance
Applications:
- Telecom and networking equipment
- Power supply and adapter protection
- Industrial automation systems
- Signal and data line protection
- Surge protection devices (SPD)
- Consumer and communication electronics
