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RF DC Block Protector, 698-2700 MHz, Type N Male-Female

N Male Connectors on Surge and N Female Protected Side


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The DCB series surge arrestor is an RF broadband device designed for surge and lightning protection applications requiring DC Block. A DC Blocking device with its internal series capacitor circuit. This DCB unit offers excellent surge/lightning suppression for telecommunications systems.

The DCB series demonstrates excellent RF characteristics while offering outstanding surge protection.


  • Public Safety Systems
  • 4G/5G Cellular Systems
  • Emergency Response Systems
  • Other Wireless Applications that Require DC Block to Equipment
  • Broad Band Design
  • Excellent Insertion Loss and Return Loss
  • Characteristics Over Frequency Range
  • DC Block
  • Multi-Strike Capability
  • Surge Current of 40kA
  • Max Power 750W RMS
  • RoHS & CE Compliant
  • Bulkhead Mounting
  • IP67 Rated
Impedance 50 Ω
Frequency 698 – 2700 MHz
VSWR/Return Loss
(Over Frequency)
≤1.15:1 Max / 23.1 dB
Insertion Loss
(Over Frequency)
≤0.2dB to ≤2700 MHz
Maximum RF Power 750W RMS Average
Brand NexTek
Protection Circuit DC Block
Surge Current IEC 61000-4-5 8/20μs
Maximum Surge 50 kA (1x)
Multi-Strike 20 kA Multiple (10x)
Let-Through Energy ≤10μJ ±20% @ 20kA
8/20μs Waveform
Let-Through Voltage  ≤10VDC ±20% @20kA
8/20μs Waveform
Storage / Operational Temp -50ºC to +85ºC

Ingress Protection


IP67 IEC 60529


Weight 5.2 oz (147.4 g)
RoHS Compliant Yes
CE Yes
Component Material Finish
Outer Parts Aluminum Ball Burnish
Connectors Brass Tri-Metal
Coupling Nut & Washer SST ---
Center Contact Be Cu / Brass Gold
Insulator PTFE ---



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