Cheap And Discounts 10pcs/lot BT137-600E TO220 BT137 BT137-600 137-600E 600V 8A TO-220 chip New spot Wholesale. Buy Directly From Merchant QiaZhiTong QZT-Chip Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.