Injectors and fuses

[Bill Lewis]

Remember one of Murphy's Laws is "A transistor protected by a fast 
acting fuse will protect the fuse by blowing first."

If you expect the fuse to be of value, you'll have to design your output 
drivers carefully.  In the case of bipolar, even if the maximum 
collector current isn't exceeded, maximum power dissipation could be.

I've never seen a fuse blow in a car for any legitimate reason, only 
when I was fubling around with the battery connected.  And a fuse adds a 
few more connections to go bad.  Ever have any experiences with those 
crappy fuses the German auto makers loved.

/Bill