I have a diode in place on my project and as the project has grown the current has increased so I was checking things and wondered if I need to replace this for a larger diode?
In my project the current can reach 1A when LEDS flash (20 of them) but these only flash for 500ms and then are off for 10 seconds, I do however sometimes flash them 3 times with a 500ms delay between them.
The diode that the main supply passes through is this one
It means it can stand a large surge for a short period of time with a huge break inbetween surges.
For example if you built a circuit consisting of the diodes arranged as a bridge rectifier, a capacitor and a small transformer, it'll be able to stand the surge when the power is turned on and capacitor initially charges.
So as my title says it's more like a once per session and it's OK to have 20 sessions a day but not 2000.
I suppose whilst I'm only drawing 1A and not 5.5A I'm doing it for 500ms so it needs replacing, I would think 500ms is a long time for the diode even at a lower than spec current? would I be right in thinking this?
The MBR0520L diode is rated for 0.5A average current.
Scarr said:
I suppose whilst I'm only drawing 1A and not 5.5A I'm doing it for 500ms so it needs replacing, I would think 500ms is a long time for the diode even at a lower than spec current? would I be right in thinking this?