CITEL CX Series – Coaxial Surge Protection with Gas Tube + Diode Technology

Fast Response | Low Clamping Voltage | Sensitive RF & Data Equipment Protection

The CITEL CX Series is a high-performance line of coaxial surge protection devices combining gas discharge tube (GDT) and high-speed diode technology to deliver superior protection for low-voltage, high-frequency communication systems. Engineered for fast, precise suppression of transient overvoltages, the CX Series is ideal for protecting sensitive RF, video, and data transmission equipment without degrading signal quality.

The GDT handles high surge energy, while the diode provides ultra-fast response and low clamping voltage, ensuring minimal let-through to connected devices. This makes the CX Series a preferred solution for base stations, video surveillance, telemetry, and other low-signal applications where protection and performance are equally critical.

Citel Cx Series

Key Features:

  • Hybrid protection: Gas Tube + Fast Diode
  • Ultra-fast response time and low residual voltage
  • Surge current capacity up to 10 kA (8/20 µs)
  • Very low insertion loss for RF and data signals
  • Compact inline housing
  • Suitable for 50 Ω and 75 Ω coaxial systems
  • Available with BNC, N-type, F-type, SMA, and other connectors
  • Indoor or protected outdoor installations
  • Compliant with IEC 61643-21, ITU-T K.44, and EN standards

Typical Applications:

  • CCTV and analog/digital video systems
  • Wireless telemetry and antenna circuits
  • GPS receivers and RF sensor systems
  • CATV networks and satellite equipment
  • Industrial control and monitoring systems