This part is a kind of semiconductor called MA8030.

Function of this product has Silicon planar type.

Manufacturers : Panasonic

Image and pinout :

Some of the text within the PDF file :

Zener Diodes MAZ8000 Series Silicon planar type Unit : mm For stabilization of power supply K A 0.625 I Features • Extremely low noise voltage caused from the diode (2.4V to 39V, 1/3 to 1/10 of our conventional MAZ3000 series) • Extremely good rising performance (in the low-current range) • Easy-to-select the optimum diode because of their finely divided zener-voltage ranks • Guaranteed reliability, equivalent to that of conventional products (Mini type package) • Allowing to reduce the mounting area, thickness and weight substantially, compared with those of the conventional products • Allowing both reflow and flow mode of automatic soldering • Allowing automatic mounting by an existing chip mounter 0.5 ± 0.1 2 0.16 − 0.06 + 0.1 1 1.25 ± 0.1 0.3 0.4 ± 0.1 1.7 [ ... ]

MA8030 PDF Datasheet Download