>So I'd need 300mA to protect 500mA ?... Or I could 500mA knowing it'll blow at >800mA
It takes it's time to blow a fuse. For a super fast acting SMD fuse I already gave some numbers, here a bit more detail, example is a 500mA fuse: It will *not* blow within 1 hour at 625mA, it will blow in less than 5 sec. at 1000mA, it will blow in less than 1 msec. at 5A. Some numbers for a time-lag fuse: It will *not* blow within 4 hours at 500mA, it will blow in less than 5 sec. at 1000mA, at 5 A it will blow in less than 100ms, but not before 10ms. So, if you put those two in series, only the super fast fuse will blow at very high currents, while at modest overload any of the two can blow. If you want to protect a 500mA fuse in your computer, you would have to use an external fuse rated not higher than 300mA. There are books about connecting fuses in series :-) Greets, Kiste -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
