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DC Block, Broad Band, Type N Bulkhead Surge Protectors, 1.5-1000 MHz

N Female connector on surge and N Male on protected side


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DC Block Coaxial RF Surge Protectors incorporate a blocking capacitor and gas discharge tube (GDT) to provide isolation and maximum RF power of 2.0kW.

PTI-BB50 Series lightning and surge protectors help protect your equipment from electromagnetic pulse (EMP) or power surges that are commonly caused by lightning or other strong electrical charges.


  • HF, UHF and VHF radios
  • Amateur (HAM) radios
  • Remote industrial monitoring and SCADA
  • Broad frequency range
  • Low VSWR and insertion loss
  • DC Block
  • Multi-strike capability
  • Surge current of 50kA
  • Max power 2kW
  • RoHS & CE compliant
  • Grounding bracket for flange or bulkhead mounting
Impedance 50 Ω
Frequency 1.5 - 1000 MHz
VSWR ≤ 1.1:1 (Over Frequency Range)
Insertion Loss (dB) ≤ 0.1dB (Over Frequency Range)
 Maximum RF Power at Frequency 2.0kW (1.5 -50 MHz)
375W (50 - 220 MHz)
125W (220 - 700 MHz)
50W (700 - 1000 MHz)
Brand NexTek
Protection Circuit DC Block
Surge Current IEC 61000-4-5 8/20μs Waveform
Maximum Surge 50 kA (1x)
Rated Impulse Discharge Current 20 kA Multiple (10x) 8x20μs Waveform
Turn-on Voltage 600V ±20% @ 1kV/μs
Turn-on Time 2.5ns for 2kV/ns
Let-Through Energy ≤5mJ ≤20% @ 3kA 8/20μs Waveform


Storage / Operational Temp -55ºC to +85ºC
Ingress Protection (IP Rating) IP65 IEC60529
Weight 0.31 lb. (0.14kg)
Vibration 1G up to 100Hz
RoHS compliant Yes
CE Yes
Component Material Finish
Outer Parts Aluminum Ball Burnish
Connectors Brass Tr-Metal
Coupling Nut & Washer SST ---
Center Contact Be Cu / Brass Gold
Insulator PTFE ---



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