Cheap And Discounts 50Pcs SMD Dual Switching Diode Transistor SOT-23 BST54S KL4 BAT54A KL2 BAT54C KL3 BAS16 A6 BAW56 A1 BAS316 A6 BAV70 A4 IC Wholesale. Buy Directly From Merchant WPK Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.