RF Surge Protector by PolyPhaser (153 more products)

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The QWP-DMDF-ER from PolyPhaser is a Low PIM, Quarter Wave Surge Protector that operates from 555 to 4500 MHz. It can handle a CW input power of up to 200 W and a surge current of 50 kA. This 50-ohm surge protector has an insertion loss of less than 0.1 dB and Passive Intermodulation (PIM) distortion of better than -160 dBc. It utilizes a quarter-wave stub design to protect critical hardware while maintaining the RF performance. This quarter-wave surge protector is particularly useful for protecting the electrical equipment from electromagnetic pulse (EMP) or power surges that are commonly caused by lightning or other strong electrical changes.

The QWP-DMDF-ER has a DC block topology that offers repetitive strike protection. It is available in a module that measures 2.80 x 0.98 x 1.47 inches with 7/16 DIN male and female connectors and is ideal for CBRS networks, cellular systems, distributed antenna systems (DAS), and emergency response systems, and public safety systems applications.

Product Specifications

Product Details

  • Part Number
  • Manufacturer
  • Description
    Low PIM, Quarter-Wave Surge Protector from 555 to 4500 MHz

General Parameters

  • Applications
    CBRS Networks, Cellular, Distributed Antenna Systems (DAS), Emergency Response Systems, Public Safety Systems
  • Body Material
  • Body Plating
  • DC Handling
    DC Block
  • Dimensions
    L 72.9 x W 24.89 x H 37.34 mm
  • Directionality
  • Impedance
    50 Ohms
  • Input Connector
    7/16 DIN
  • Input Connector Gender
  • Multi-Strike
  • Output Connector
    7/16 DIN
  • Output Connector Gender
  • PIM
    160 dBc
  • Type
    Quarter-Wave Shorting Stub (QWS)
  • VSWR
  • Weight
    0.5 lbs [226.8 g]
  • Frequency
    DC to 4.5 GHz
  • Input Power
    200 W
  • Insertion Loss
    0.1 dB
  • Operating Temperature
    -40 to 85 Degree C
  • Surge Current
    50 kA

Technical Documents