The 200KP295CVCL is designed for low clamping protection of 400V transistors, MOSFETs and IGBTs in off-line switching power supplies. The 200KP295CA normal clamp device is for use in less sensitive applications including RFI/EMI filters and general across-the-line protection. Secondary lightning protection per IEC61000-4-5 with 12 Ohms source impedance for Class 1,2, 3 and 4 Secondary lightning protection per IEC61000-4-5 with 2 Ohms source impedance for Class 2 and 3