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380-2700MHz DC Blocked Coaxial 7/16 DIN Female Protected Side
Item #MLBHR-D77
Suggested Retail: $160.00
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Low PIM DC Blocks, High Power, Wideband, Inner DC Blocks 380-2,700 MHz, 7-16

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The HR-D77 is designed for Verizon and is based on Microlab HR-20 series DC Blocks. These are used to prevent the flow of direct current and low frequency current surges along the inner conductor of a transmission line, while permitting the unimpeded flow of RF signals. Applications include the blocking of current surges in subway tunnels, at antenna sites during lightning storms and to route DC to tower mounted amplifiers.

The unit consists of a length of coaxial line with a distributed series capacitor in the center conductor to block the flow of DC and low frequencies, while passing RF with negligible loss or reflections. (4/12)

Product Features:
  • Multi-Band Coverage
  • 500 W Avg. Power Rating
  • 3 kV High Voltage Rating
  • Minimal RF Insertion Loss
  • Very Low Passive IM
  • RoHS compliant
  • High Reliability
  • 7-16 mm Din Connectors

  • Electrical Specifications
    Block Inner conductor only
    Frequency, MHz380-800800-2,700
    VSWR, max1.30:11.20:1
    Insertion Loss, dB <0.12<0.08
    Power Rating 500 W avg. 10 kW pk.
    Breakdown Voltage 3 kW max. DC
    Impedance 50Ω nominal
    Intermod. Distortion <-153 dBc max.
    (2 tones of +43 dBm)
    Environmental Specifications
    Operating Temperature-35°C to +75°C, IP65
    Mechanical Specifications
    FinishPassivated Aluminum
    Connector FinishSilver or Triplate, (m & f)
    Connectors ⁄ Max. Torque7-16 mm / 30 Nm, 221 f-p