I guess you did a search for the "marking".
If this gives no result ... we need more information.Like: Where is the PCB from, what does it do, voltages, currents, fuctions, a wider view picture so we can see the parts and traces around...
IMHO, based on the form factor, the end terminals and the white band, it is a diode. Based on the tab width, it is probably at leasta 1A maybe 3A unit.