Cheap And Discounts 5/20/50pcs LM393 SOP8 LM393DR LM393ADR 393 SOP-8 Low Power Consumption Low Offset Voltage Dual Comparator Chip IC Wholesale. Buy Directly From Merchant Shop1103591207 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.