RLC Electronics offers 4th Order Tubular Bessel low pass filter with 3 dB cutoffs at up to 2X cutoff of the company's LB series. Computer design and tubular construction allow the filter to maintain excellent delay characteristics with reasonable rejection while extending the 3 dB cutoff and eliminating unwanted spurious response. These filters should be regarded as compromise designs for pulsed, systems where truthful reproduction of the pulse shape is important. Power rating is 2 watts average. Impedance is 50 ohms. Connectors are SMA Female or SMA Male. Temperature is 55°C to +85°C.