T
treez
Guest
The datasheet for the SG73P2E 47R, 1210 resistor says that over a 1us interval, it should dissipate no more than 900W…
SG73P2E pulse rated resistor datasheet:
https://www.koaspeer.com/products/resistors/surface-mount-resistors/sg73p/
…That is, an energy of 900 uJ.
Now suppose that it dissipates 900W for 1us, then dissipates nothing for the next 99999us
…that means the resistor dissipated an effective power of just 9mW over that 0.1second.
…that’s a ridiculously low power level. –So how can they say that the power must be limited to just 900W over a 1us time interval?
I cannot believe that the resistor is going to heat up to a damaging temperature in 1us? Would it? How hot would it get?
SG73P2E pulse rated resistor datasheet:
https://www.koaspeer.com/products/resistors/surface-mount-resistors/sg73p/
…That is, an energy of 900 uJ.
Now suppose that it dissipates 900W for 1us, then dissipates nothing for the next 99999us
…that means the resistor dissipated an effective power of just 9mW over that 0.1second.
…that’s a ridiculously low power level. –So how can they say that the power must be limited to just 900W over a 1us time interval?
I cannot believe that the resistor is going to heat up to a damaging temperature in 1us? Would it? How hot would it get?