Samsung BN44-00509B Power Supply Board P51HW_CDY Please order by the part # below to ensure compatibility. Ordering by board # or TV model # will not guarantee compatibility with your unit. Please contact us with any questions: BN44-00509B Other Board #s and TV Model #s: P51HW_CDY PN51E440A2FXZA TD02 PN51E450A1FXZA TD02 PN51E450A1FXZA TS04 PN51E490B4FXZA TD02 PN51F4500AFXZA US02