The SMD4532-075NF Gas Discharge Tube (GDT) from RUILON is a high-performance surge protection device engineered to protect sensitive electronic circuits from lightning strikes, transient overvoltage, and electrostatic discharge. With a nominal DC spark-over voltage of 75V (tested at 100V/µs), it ensures fast and accurate response, effectively diverting surge energy away from critical components and improving overall system reliability.
Utilizing advanced ceramic gas discharge technology, the SMD4532-075NF offers stable impulse spark-over performance (1kV/µs), high insulation resistance, and low capacitance at 1 MHz, making it ideal for high-speed data lines and communication interfaces where signal integrity is essential. Its strong impulse discharge current capability (8/20µs waveform) and excellent impulse withstand voltage ensure long service life and consistent protection performance even under repeated surge conditions.
Compared to higher voltage variants, the 75V model provides enhanced sensitivity and faster response for low-voltage circuits, making it suitable for precision electronics and communication systems. The SMD4532 package provides superior thermal dissipation, higher surge handling capability, and robust mechanical strength, while supporting automated surface-mount assembly for efficient and flexible PCB design.
Key Features:
- DC Spark-Over Voltage: 75V @ 100V/µS
- Stable impulse spark-over voltage @ 1kV/µS
- High surge current capability (8/20µS)
- Low capacitance @ 1 MHz for signal integrity
- High insulation resistance
- Enhanced thermal performance (SMD4532 package)
- Long service life and high reliability
Applications:
- Telecom and networking systems
- Industrial control equipment
- Power supply protection circuits
- Smart meters and IoT devices
- Consumer electronics
- Lightning and surge protection systems
