Barth 2536 High Power 200W Attenuator

Barth 2536 High Power 200W Attenuator



A high voltage pulse/high power microwave (HPM) attenuator that contains a liquid dielectric coolant. It has an integral coolant pump, heat exchanger, and fan, which enables this unit to dissipate high average power.

  • High voltage pulse rated
  • 200 Watt average input power
  • For use with high rep rate pulses
Maximum Input 7kV/400ns, l5kV/75ns, 30kV/15ns, 60kV/2ns FWHM Pulse
Peak Input Power72MW at rated pulse width 
Average Input Power200W maximum 
Impedance50Ω ±1% (output terminated with 50Ω)
Risetime through Unit< 30ps
Bandwidth (-3dB)DC to > 10Ghz
Reflection-TDR< 5% to a 100ps risetime step function
Voltage Coefficient< 1% at 25kV
Connector** HNB female *
Dimensions inches (cm)Approx. 5 (12.7) Wide x 6” (15.3) High x 12 ”(30.5) Deep 
WeightApprox. 17 lbs. (7.8 kg)
Power Requirements 115V/60Hz, 4 Amp to power cooling pump, fan and highly visible 


* Our type HN (HNB) connectors are specially designed to obtain minimum reflection
coefficient for fast risetimes. For best pulse response, our model 401-HNB male or
402-HNB female cable connector for RG214/U coax should be used for interconnection.

** Unit is supplied with a Barth Model 404-HMM low reflection male to male adapter,
so that either the input or output can be a male connector.


Barth 2536 datasheet