from LM723 thread.

Removing the load (bank of charging sealed lead acid batteries) from a
bench power supply, the output suddenly went to 0 volts and current
overload tripped.

Testing revealed a shorted 1N5402 which I confident replaced with a
1N5408.  This diode sits across the PSU output.

These are General Purpose Rectifiers both rated 3A from the datasheet.

The datasheet also provides a specification new to me, VRRM  Maximum
Repetitive Reverse Voltage which was given as 200V and 1000V
respectively.

Initially I thought 1000V was better spec'ed than the original but
after reading the LM723 thread I am not so sure I have done the right
thing.

I assumed this diode was simply provided to quench any inductive
spikes but perhaps it has another function dependant on the VRRM spec.

Any thoughts.

Justin
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