DEHN DGA GFF TV Descarrilador de sobretensão coaxial, ficha F, 75 Ohm, 0-2400 MHz 909705

The DEHN DGA GFF TV stands out among coaxial surge arresters by combining a wide frequency range up to 2400 MHz with a low insertion loss of just 0.5 dB, ensuring that TV and satellite signals pass through with minimal degradation while protecting sensitive equipment from transient overvoltages. Its nickel-plated brass housing offers robust durability, and the in-line F-connector design allows for quick installation without additional mounting hardware.

Highlights

• Protects TV/SAT systems and coaxial lines from surge voltages
• Broad frequency range: 0 - 2400 MHz
• Low insertion loss: ≤ 0.5 dB across the entire frequency range
• High return loss: ≥ 18 dB for excellent signal integrity
• Shielding attenuation: ≥ 60 dB to minimize interference
• Compact in-line design with F-connectors (female/male)
• Nickel-plated brass housing for corrosion resistance

In daily use

Installed directly in the coaxial cable run, the DGA GFF TV provides continuous protection without the need for separate grounding leads. Its 75 Ω impedance matches standard TV/SAT cabling, and the operating temperature range of -40 °C to +80 °C makes it suitable for both indoor and outdoor applications (though its IP20 rating indicates indoor use). The surge arrester handles nominal discharge currents up to 2.5 kA (8/20 µs) and maximum discharge currents up to 5 kA, with a voltage protection level of ≤ 600 V, effectively clamping surges before they reach connected devices.

Full specifications

• Nominal voltage (UN): 5 V DC
• Max. continuous operating voltage (UC): 24 V DC / 24 V AC
• Nominal discharge current (In) (8/20 µs): 2.5 kA
• Max. discharge current (Imax) (8/20 µs): 5 kA
• Voltage protection level (Up) at In: ≤ 600 V
• Frequency range: 0 - 2400 MHz
• Insertion loss: ≤ 0.5 dB (0.1 - 2400 MHz)
• Return loss: ≥ 18 dB (0.1 - 2400 MHz)
• Shielding attenuation: ≥ 60 dB (0.1 - 2400 MHz)
• Impedance: 75 Ω
• Connectors: F-connector (female/male)
• Housing material: nickel-plated brass
• Operating temperature range: -40 °C to +80 °C
• Degree of protection: IP20
• Mounting type: in-line connection

Final note

Engineered for reliable surge protection in TV and satellite installations, the DEHN DGA GFF TV offers high performance in a compact, easy-to-install package.