INTRODUCTION: SPIKE SUPPRESSOR: 1. Better temperture stability 2. Excellent impedance-frequency characteristics 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