Taiyo Yuden Debuts New PAS150 Switcher

Taiyo Yuden USA Inc. (Schaumburg, IL) debuted the new PAS150, which is the first model in the company's new PAS Series of passive power-factor corrected (PFC) based, switch-mode power supplies for 1U-height, single-output applications. The PAS150 employs passive PFC technology as compared to the more complex, less reliable, active PFC technology currently available due to the recent declassification of many Class D end devices to less stringent Class A standards per EN61000-3-2 harmonic distortion standards.

The PAS150 switcher not only meets all Class A PFC requirements, but also provides greater reliability and higher mean time between failure through use of fewer components. The PAS150 switcher provides a universal 115Vac/230Vac input selection and a single output of 150W continuous power. The user can select one of several factory-set output voltages, including 3.3V, 5V, 12V, 24V and 48V. The PAS150 switcher features optional current-sharing capability for 1+1 redundancy with no special interconnection requirement. Other options include remote on/off, and droop or single-wire current sharing with OR-ing diodes. The standard unit offers an optional fan with its own 12Vdc supply.