This part is a kind of semiconductor called 1N5828.

Function of this product has Silicon Power Schottky Diode.

Manufacturers : GeneSiC

Image and pinout :

Some of the text within the PDF file :

Silicon Power Schottky Diode Features • High Surge Capability • Types from 20 V to 40 V VRRM • Not ESD Sensitive Note: 1. Standard polarity: Stud is cathode. 2. Reverse polarity (R): Stud is anode. 3. Stud is base. 1N5826 thru 1N5828R VRRM = 20 V - 40 V IF = 15 A DO-4 Package Maximum ratings, at Tj = 25 °C, unless otherwise specified ("R" devices have leads reversed) Parameter Symbol Conditions 1N5826 (R) 1N5827 (R) Repetitive peak reverse voltage RMS reverse voltage DC blocking voltage Continuous forward current Surge non-repetitive forward current, Half Sine Wave Operating temperature Storage temperature VRRM VRMS VDC IF IF,SM Tj Tstg TC ≤ 100 °C TC = 25 °C, tp = 8.3 ms 20 14 20 15 500 -55 to 150 -55 to 150 30 21 30 15 500 -55 to 150 -55 to 150 Electrical characte [ ... ]

1N5828 PDF Datasheet Download