This part is a kind of semiconductor called B340D.

Function of this product has Schottky Barrier Rectifiers.

Manufacturers : AXElite

Image and pinout :

Some of the text within the PDF file :

B3 40D Schottky Barrier Rectifiers Features ‧Guardring for overvoltage protection ‧Very small conduction losses ‧Low forward voltage drop ‧Component in accordance to RoHS 2002/95/EC PRIMARY CHARACTERISTICS IF VRRM IFSM VF TJ max 3A 40V 80 A 0.55V 125°C Mechanical Data ‧Cases: DO-201AD ‧Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0 ‧Terminals: Lead free Plating (Tin Finish) Solderable per MIL-STD-202, Method 208 ‧Polarity: Cathode Band ‧Weight: 1.071 grams (approximate) ™ ORDER/MARKING INFORMATION Order Information B X X X XX VÛmw`R•yÑb€ Top Marking Assembly Material Blank : G : Halogen and Lead Free Device Peak Current 3: 3A Voltage 40: 40V w.goftech.com Type D: DO-201AD AXE Y W B3 40 D X X W : 01~26(A~Z) 27~52(a~z) Year : [ ... ]

B340D PDF Datasheet Download