Cheap And Discounts Original 20PCS BD139 BD140 ( 10PCS BD139 + 10PCS BD140 ) TO126 TO-126 voltage regulator IC Wholesale distribution list Wholesale. Buy Directly From Merchant HCfactory Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.