The HS-6254RH is a Radiation Hardened array of five NPN transistors on a common substrate. One of our bonded wafer, dielectrically isolated fabrication processes provides an immunity to Single Event Latch-up and the capability of highly reliable performance in any radiation environment. The high FT (8GHz) and low noise figure (3.5dB) of these transistors make them ideal for use in high frequency amplifier and mixer applications. Monolithic construction of the five transistors provides the closest electrical and thermal matching possible. Access is provided to each terminal of the transistors for maximum application flexibility.