Trying to replace surface mount component

I have a surface mount component that I am trying to replace. Below is an image of the part in question. I believe it is a diode of some sort but only two of the legs are actually used.

See below image of xray of diode. (as can be seen only two legs are actually used)

The markings appear to belong to Diode part MMBZ5248BLT1GOSCT-ND

The use is also consistant with the part being a single diode as called out in the data sheet.