> Jinx <joecolquitt <at> clear.net.nz> writes:
>> Or the way I used to remember it, until I noticed the above. With
>> 'positive' flow, 'a' comes before 'k' (or 'c').
>
> Unless it's a Zener or microwave diode, in which case
> your method will be wrong.

Not really - the FORWARD  operation is the same. You just need to be aware 
that in some specialist circuits the diode is used "backwards". Seriously. 
If you start reorientating your naming to account for specialist usage you 
are liable to produce more problems than you remove.

Another example is the use of a photodiode in reverse bias mode. As a photo 
diode can be used as a photodetector in both polarities, and as the results 
and circuitry differ for each, then getting the diode naming etc correct and 
then working out how it's used is a very good idea [tm]. Interestingly, the 
reverse polarity mode is usally the preferred one.

A zener diode is (arguably) a poor 'ordinary' diode with an optimised 
reverse breakdown capability.

In the SL2 BOGO light there are two identical MOSFETS. They are connected 
with opposite polarities relative to supply. One is the switch in a standard 
SMPS circuit. Why is the other one connected "backwards" and what does it do 
? :-).


         Russell






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