Radiation-hardened MOSFETs

  • 21-Dec-2010 08:34 EST

International Rectifier’s hermetic, radiation-hardened 100-V MOSFETs (metal oxide semiconductor field-effect transistors) are provided in a compact, surface-mount SMD0.2 package for space applications such as satellite bus power systems and payload power supplies. The package uses aluminum nitride ceramic for enhanced thermal conductivity. With a 0.3 x 0.2 x 0.1-in footprint and a mass of 0.25 g, the device is 50% smaller and 75% lighter compared to existing SMD0.5 packages while dissipating the same amount of power at around 23 W. Both 100 krad and 300 krad total dose rating are available, with SEE rating of 85 MeV/(mg/cm2). Standard and logic-level N-channel and P-channel devices, as well as voltages other than 100 V, are also available.

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