Hi Claudio, the high capacitors must be replaced by the same or same characteristics, in terms of voltage almost all, if not all, are 2100 volts AC, but in terms of their capacity in microfarads there are several, for example 0.92, 0.98, 0.90 , 0.80, 0.85, 0.95, 1.10, 0.75, 1.07, 1.00 and more, bring a tolerance of + - 3% of the value in microfarads. You can not place any value since it is calculated to the size of the transformer, magnetron and microwave cabin, that you must take into account before replacing the capacitor, I hope I have helped you with your doubts, coordination greetings.