The 2R550SK-5 SMD Gas Discharge Tube (GDT) from RUILON is a high-voltage surge protection component engineered to provide superior protection against extreme transient overvoltage events such as lightning strikes, switching surges, and induced electrical disturbances. Built using advanced ceramic gas discharge technology, this device ensures ultra-fast switching by transitioning from a high-resistance state to a low-impedance conduction path, effectively diverting high-energy surges away from sensitive electronic circuits.
With a nominal spark-over voltage of approximately 550V, the 2R550SK-5 is ideal for applications requiring high voltage tolerance and enhanced surge protection compared to lower-rated GDT devices. It features high insulation resistance and ultra-low capacitance, ensuring minimal signal distortion in high-frequency communication and data transmission lines.
Engineered for long-term reliability, the device supports high impulse discharge current capability (8/20 µs waveform) and maintains stable performance under repetitive surge conditions. Its consistent glow and arc voltage characteristics contribute to extended service life in demanding environments.
The compact SMD package design allows easy integration into modern PCB layouts while supporting automated SMT assembly processes. Compared to lower voltage GDT variants, the 2R550SK-5 offers improved energy handling capability and robust performance, making it an excellent choice for industrial, telecom, and power protection systems.
Key Specifications
- Part Number: 2R550SK-5
- Type: Ceramic Gas Discharge Tube (GDT)
- Package: SMD Series
- Nominal Spark-over Voltage: ~550V
- Impulse Discharge Current: 8/20 µs waveform
- Insulation Resistance: High
- Capacitance: Ultra-low (@1 MHz)
- Arc Voltage: Stable
- Glow Voltage: Controlled characteristics
- Service Life: Long lifespan under repetitive surge stress
Key Features
- High-voltage surge protection capability
- Fast response to transient overvoltage events
- Ultra-low capacitance for high-speed signal integrity
- High insulation resistance for reliable isolation
- Compact SMD footprint for space-efficient PCB layouts
- Excellent surge current handling performance
- Long operational life with consistent reliability
- Suitable for automated SMT manufacturing
Applications
- Telecom and networking equipment
- Industrial automation and control systems
- Power supply and AC/DC line protection
- Consumer electronics and appliances
- Smart grid and metering systems
- Data and signal line protection
- Lightning and transient surge suppression systems
