This part is a kind of semiconductor called BAS16.

Function of this product has SURFACE MOUNT SWITCHING DIODES.

Manufacturers : Pan Jit International Inc.

Image and pinout :

Some of the text within the PDF file :

BAS16, BAS19, BAS20, BAS21 SURFACE MOUNT SWITCHING DIODES VOLTAGE 75-200 Volts FEATURES • Fast switching speed. • Surface mount package Ideally Suited for Automatic insertion • Electrically Identical to Standard JEDEC • High Conductance POWER 350 mWatts PACKAGE SOT-23 MECHANICAL DATA Case: SOT-23, Plastic Terminals: Solderable per MIL-STD-202, Method 208 Approx. Weight: 0.008 gram Marking: A6, A8, A80, A82 MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25OC ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. PARAMETER Reverse Voltage Peak Reverse Voltage Rectified Current (Average), Half Wave Rectification with Resistive Load and f >=50 Hz Peak Forward Surge Current [ ... ]

BAS16 PDF Datasheet Download