INTRODUCTION: SPIKE SUPPRESSOR 1. Better temperature stability 2. Excellent impedance-frequency charcteristics 3. Outstanding resistance to unbalanced current 4. High saturation magnetic induction intensity-effectively reduce the size of common mode inductors APPLICATION: 1. Inverter circuit 2. Inverter� 3. UPS 4. Switching power supply 5. EMC filter inductor 6. New energy such as solar energy, wind energy