TVS diode is used in frequency conversion microwave oven to protect ov from high line voltage of transformer or regenerative high voltage.
Design scheme of over voltage / over current protection based on variable frequency drive：
The selection of TVs depends on line voltage, rated load current and maximum surge load current. The line voltage is usually about 300 volts. Typical TVs product number 1.5smc400a. Axial lead TVs components are available in a variety of rated voltages for different line conditions.
TVS transient suppression diode：
Product | Power | VRMN(V) | VBR min(V) | VBR max(V) | IT(MA) | Vc(V) | IPP(A) | IR(Ua) | Package |
| 1.5KE400A | 1500W | 342 | 380 | 420 | 1 | 548 | 2.8 | 5 | DO-201AD |
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