This part is a kind of semiconductor called BAV199T.

Function of this product has (BAV1xxT) SURFACE MOUNT LOW LEAKAGE DIODE.

Manufacturers : Diodes Incorporated

Image and pinout :

Some of the text within the PDF file :

BAS116T, BAW156T, BAV170T, BAV199T SURFACE MOUNT LOW LEAKAGE DIODE Features NEW PRODUCT · · Ultra-Small Surface Mount Package Very Low Leakage Current SOT-523 A C TOP VIEW B G H K M E B C Dim A B C D G H N Min 0.15 0.75 1.45 ¾ 0.90 1.50 0.00 0.60 0.10 0.10 0.45 0° Max 0.30 0.85 1.75 ¾ 1.10 1.70 0.10 0.80 0.30 0.20 0.65 8° Typ 0.22 0.80 1.60 0.50 1.00 1.60 0.05 0.75 0.22 0.12 0.50 ¾ Mechanical Data · · · · · · · · Case: SOT-523, Molded Plastic Case material - UL Flammability Rating Classification 94V-0 Moisture sensitivity: Level 1 per J-STD-020A Terminals: Solderable per MIL-STD-202, Method 208 Polarity: See Diagrams Below Marking: See Diagrams Below & Page 3 Weight: 0.002 grams (approx.) Ordering Information: See Page 3 J K L M N a J D L A [ ... ]

BAV199T PDF Datasheet Download