The 2R500SK-8 SMD Gas Discharge Tube (GDT) from RUILON is a high-voltage surge protection device designed to deliver robust and reliable performance in protecting electronic circuits from transient overvoltage events such as lightning strikes, switching surges, and electrical disturbances. Utilizing advanced ceramic gas discharge technology, this component provides ultra-fast switching by transitioning from a high-resistance state to a low-impedance conduction path when voltage thresholds are exceeded, effectively diverting high-energy surges away from sensitive circuitry.
With a nominal spark-over voltage of approximately 500V, the 2R500SK-8 is ideal for applications requiring higher voltage tolerance and enhanced protection compared to lower-rated GDT variants. It features high insulation resistance and ultra-low capacitance, ensuring minimal signal distortion in high-frequency communication and data transmission lines.
Engineered for durability, the device supports high impulse discharge current capability (8/20 µs waveform) and maintains consistent performance under repetitive surge conditions. Its stable glow and arc voltage characteristics contribute to long operational life and dependable protection.
The compact SMD package design allows seamless integration into modern PCB layouts and supports automated SMT assembly processes, making it suitable for compact and high-density electronic designs. Compared to lower voltage GDT devices, the 2R500SK-8 provides improved energy handling capability and long-term reliability, making it an excellent choice for industrial, telecom, and power protection applications.
Key Specifications
- Part Number: 2R500SK-8
- Type: Ceramic Gas Discharge Tube (GDT)
- Package: SMD Series
- Nominal Spark-over Voltage: ~500V
- 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
