Coaxial-packaged RF amplifiers are unconditionally stable low noise and gain block amplifiers offering P1dB levels up to +23. In specific versions, GaAs PHEMT semiconductors are used for linear performance and efficiency. Noise figure levels range as low as 0.5 dB, and IP3 linearity reaches up to +37 dBm. While single DC positive voltage supply ranges from +12 to +15 Vdc, bias current ranges from 40–190 mA. Operating range is -40 to +85°C.