TVS Diode

Discussion in 'General Electronics Chat' started by cryosar, Oct 27, 2009.

  1. cryosar

    Thread Starter Active Member

    Apr 2, 2009
    Pls tel me about TVS diode. Actullay my input voltage across the Mosfet will be 750VDC. Am connecting 2 mosfet's in series. the voltage across first mosfet should not go beyond 540V. so i have connected a TVS diode across the drain to source of that problem is TVS diode is getting more hot and it solder lead melts and comes out from the board. I simply connected some RC across the TVS diode it is somewhat helping in reducing the heat dissipation. can anyone help me in solving the problem by telling the formula to calculate RC or whether any other method to reduce the heat of TVS diode.

    Thank you