The 50HF-XXX-25/18 from JFW Industries are Fixed Attenuators that operate from DC to 18 GHz. They are available in attenuation values from 3 to 40 dB and have a VSWR of less than 1.4:1. These attenuators can handle an average input power of 25 W and a peak input power of 500 W. They are available in modules with N-type, SMA, or TNC connector options. These attenuators have an operating temperature range from -65°C to +125°C.