This part is a kind of semiconductor called GBU10005.
Function of this product has (GBU10005 - GBU1010) 10.0Amp Glass Passivited Bridge Rectifiers.
Manufacturers : SeCoS
Image and pinout :

Some of the text within the PDF file :
GBU10005 ~ GBU1010 Elektronische Bauelemente Voltage 50V ~ 1000V 10.0Amp Glass Passivited Bridge Rectifiers RoHS Compliant Product A suffix of “-C” specifies halogen & lead-free FEATURES Surge overload rating -220 amperes peak Ideal for printed circuit board Reliable low cost construction utilizing molded plastic technique Plastic material has Underwriters Laboratory flammability classification 94V-0 Mounting position: Any GBU REF. A B C D E F G H Millimeter Min. Max. 21.80 22.20 18.30 19.10 3.37 3.53 17.27 18.29 3.2 x 45° 3.40 4.10 5.40 5.90 2.30 2.70 REF. I J K L M N P Q Millimeter Min. Max. 0.9 1.2 0.46 0.56 4.80 5.30 2.16 2.54 1.65 2.03 1.45 1.85 9.80 10.20 10.90 11.10 MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (Rating 25°C ambient temperature unless otherwise specifi [ ... ]
GBU10005 PDF Datasheet Download
