242 modules qpi series active emi filter features ? up to 60db cm attenuation at 250khz. ? up to 80db dm attenuation at 250khz. ? efficiency: >99% at full load. ? surface-mount lga package. ? integrated hot-swap in selected models. ? support picmg 3.0 atca requirements. active emi filter (qpi) product description the qpi family of active emi filters provides conducted common-mode (cm) and differential-mode (dm) attenuation from 150khz to 30mhz (cispr22 range). the proprietary active filtering circuit provides superior attenuation at low frequencies intended to support en class b limits, including picmg 3.0 for atca. models qpi-3 through qpi-8 are designed to work with most switch-mode power supplies. the qpi-9 through qpi-12 products are desi gned specifically for use with vicor?s v?i chip power conversion products. full-size qpi models are 25x25x4.5mm sip (system in package), with lga mounting. qpi-11 and qpi-12 are half size 12.5x25x4.5mm si ps. selection tables typical configuration not for design use; see data sheet. performance
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