The 50HFFB-XXX-5/40 from JFW Industries are Fixed Attenuators that operate from DC to 40 GHz. They are available in attenuation values from 1 to 10 dB, 20 and 30 dB with an attenuation accuracy of ±1.3 dB. These attenuators can handle a bi-directional RF input power of 5 W and have a VSWR of less than 1.25:1. They are available in modules that measure 0.62 (Dia.) x 1.55 (L) inches with 2.92 female/male connectors and a round heatsink. These fixed attenuators have an operating temperature range of -55°C to +125°C.