The SMD4532-070NF Gas Discharge Tube (GDT) from RUILON is a high-performance surge protection device designed to protect sensitive electronic circuits from lightning strikes, transient overvoltage, and electrostatic discharge. With a nominal DC spark-over voltage of 70V (tested at 100V/µs), it ensures fast and precise response, effectively diverting surge energy away from critical components and enhancing system reliability.
Built using advanced ceramic gas discharge technology, the SMD4532-070NF delivers stable impulse spark-over performance (1kV/µs), high insulation resistance, and low capacitance at 1 MHz, making it ideal for high-speed communication and signal line protection with minimal signal distortion. Its strong impulse discharge current capability (8/20µs waveform) and excellent impulse withstand voltage ensure long service life and consistent protection even under repeated surge conditions.
Compared to higher voltage variants, the 70V model offers faster response sensitivity and improved protection for low-voltage circuits, making it suitable for precision electronics and communication interfaces. The larger SMD4532 package provides enhanced thermal dissipation, higher surge handling capability, and robust mechanical strength, while supporting automated surface-mount assembly for efficient PCB integration.
Key Features:
- DC Spark-Over Voltage: 70V @ 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 equipment
- Industrial control systems
- Power supply protection circuits
- Smart meters and communication modules
- Consumer electronics and IoT devices
- Lightning and transient surge protection systems
