The 2R500SK-5 SMD Gas Discharge Tube (GDT) from RUILON is a high-voltage surge protection component engineered to provide robust and reliable protection against extreme transient overvoltage events, including lightning strikes and switching surges. Utilizing advanced ceramic gas discharge technology, this device offers 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 500V, the 2R500SK-5 is designed for applications requiring high voltage tolerance and superior surge protection compared to lower-rated GDT devices. It features high insulation resistance and ultra-low capacitance, ensuring minimal impact on high-frequency signal transmission and preserving signal integrity in communication systems.
Engineered for durability, the device supports high impulse discharge current capability (8/20 µs waveform) and performs reliably under repeated surge exposure, ensuring long operational life. Its stable glow and arc voltage characteristics further enhance performance consistency in harsh electrical environments.
The compact SMD package design enables seamless integration into modern PCB layouts and supports automated SMT assembly processes, making it ideal for high-density and space-constrained designs. Compared to lower voltage GDT variants, the 2R500SK-5 provides enhanced energy handling capability and improved system reliability.
Key Specifications
- Part Number: 2R500SK-5
- 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-saving 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
