Cheap And Discounts New Original 10Pcs TT2194 TT2194M OR TT2188 OR TT2180 OR TT2146 TO-220 NPN Triple Diffused Planar Silicon Transistor Wholesale. Buy Directly From Merchant Shenzhen Sacoh Elec. Company Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.