This part is a kind of semiconductor called 1N5819.
Function of this product has Schottky barrier diodes.
Manufacturers : NXP
Image and pinout :
Some of the text within the PDF file :
DISCRETE SEMICONDUCTORS DATA SHEET fpage M3D119 1N5817; 1N5818; 1N5819 Schottky barrier diodes Product specification Supersedes data of April 1992 1996 May 03 Philips Semiconductors Product specification Schottky barrier diodes FEATURES • Low switching losses • Fast recovery time • Guard ring protected • Hermetically sealed leaded glass package. APPLICATIONS • Low power, switched-mode power supplies • Rectifying • Polarity protection. handbook, 4 columns 1N5817; 1N5818; 1N5819 DESCRIPTION The 1N5817 to 1N5819 types are Schottky barrier diodes fabricated in planar technology, and encapsulated in SOD81 hermetically sealed glass packages incorporating ImplotecTM(1) technology. (1) Implotec is a trademark of Philips. k a MAM218 Fig.1 Simplified outline (SOD81) and sy [ ... ]