For tradition SOD-123 package, wire-bonding contact is popularly adopted. It's easyand the cost is lower. But the area is limited, so the power surge is limited. Smitech, a customer oriented manufacturer, adopts a completely different solding method. The contact area between the chip and lead is enlarged greatly. Our SPECIAL SOD-123 TVS may replace the 400W TCS of SMA Packaged in some cases. producing area:China