Overview Product Description BD681_ST.pdf Complementary to PNP-Darlington BD682. Product Videos Custom Field Product Reviews Write a Review Write a Review × BD681 ; Transistor NPN-Darlington 100V 4A 40W MHz, TO-126 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *