250W SWITCHER PASSIVE PFC
The PAS250 is the second model in the PAS series of passive PFC-based, switch-mode power supplies for 1U-height single-output applications.
Like its 150W companion model (PAS150), the PAS250 provides uses of passive versus active PFC technology. The PAS250 switcher meets all Class A PFC requirements, and provides greater reliability and higher MTBF (mean time between failure) through use of fewer components. Also, the relative cost per Watt of a passive PFC switcher like the PAS250 is significantly less than a comparable switch-mode power supply employing active PFC techniques.