This part is a kind of semiconductor called EDZ11B.

Function of this product has Zener diode.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

EDZ11B Diodes Zener diode EDZ11B zApplications Constant voltage control zExternal dimensions (Unit : mm) 0.8±0.05 0.12±0.05 zLand size figure (Unit : mm) 0.8 zFeatures 1) 2-pin ultra mini-mold type for high-density mounting (EMD2). 2) High reliability. 3) Can be mounted automatically, using chip mounter. 0.3±0.05 0.6 1.2±0.05 1.6±0.1 ＥMD2 zStructure 0.6±0.1 zConstruction Silicon epitaxial planar ROHM : EMD2 JEDEC :SOD-523 JEITA : SC-79 Mark EX. EDZ3.6B zTaping specifications (Unit : mm) 0.2±0.05 4.0±0.1 2.0±0.05 φ1.5±0.05 3.5±0.05 1.75±0.1 8.0±0.15 1.3±0.06 0 1.26±0.05 0 0.2 0.76±0.05 2.45±0.1 φ0.5 0.95±0.06 0 4.0±0.1 空ポケット Empty poc ket 2.0±0.05 zAbsolute maximum ratings (Ta=25°C) Parameter Power dissipation Junction temperature Storag [ ... ]

EDZ11B PDF Datasheet Download