NP's of a Schematic

[tedstruk]

now I know you will wonder about me...
On the schematic the diodes are created with a vertical bar >>> | <<< and aa solid arrow against one side..
----->|------
the anode is the arrow --->| and the cathode is the bar...
Is this correct?
If so the little white line on the diode signifies the anode right?

Or is this a matter for the datasheets?

 

[davenn]

the anode is the arrow --->| and the cathode is the bar...
Is this correct?

yes

If so the little white line on the diode signifies the anode right?

no, see above


Dave

 

[tedstruk]

holy heck I wired up my new diodes completelyl backward... sure glad I second check then second guess then be second, cause if I first checked then first guessed and was first, It would probably explode.
I have found sparkfun very useful...

BUT IT DOESN'T SAY WHAT THE WHITE LINE IS----
I understand that the farther down the diode the white line is, the less PN junction the diode has and the less current it takes to avalanche from A to K. or K to A as the case may be.

 

[BobK]

The position of the line only indicates which lead is the cathode. It has nothing to do with the characteristics of the diode.

Bob

 

[Arouse1973]

In the symbol of the diode above chop it in half and throw away everything to the right. Do you see a K?
Adam

 

[(*steve*)]

And the line on the device isn't always white. Black lines are common on sides that aren't black.

I remember it as the line on the device is the line on the symbol.

 

[Audioguru]

Like most semiconductor devices, a diode has a part number. The datasheet for the part number has all the specifications and even has graphs.

 

[davenn]

Like most semiconductor devices, a diode has a part number. The datasheet for the part number has all the specifications and even has graphs.

The problem is, not all have part numbers on them
I could show you dozens of diodes with no part numbers, many totally blank other than the cathode bar, others just a couple of colour bands
Others with just a single digit ... the manufacturer ( whoever they are) only knows what that means ??