Stud Mount Diodes

[mowind]

hello all , i recently came across some Stud Mount Retifier Diodes . Can they be used with wind turbines? Has anyone ever used them ? What are the advantages and disadvantages if using them ? Thanks in advance for any input on this .

Mowind

[Norm]

Do you know what voltage and amps they are rated for?

          ( :>) Norm

[Flux]

Yes you can use stud mount diodes.

Disadvantages:-

You need to use two insulated heat sinks, one for the positive line and one for the negative.  If you use all the same type of diode you will need one heatsink for 3 diodes and the other 3 will need their individual sinks ( all insulated)

Advantages:-

Standard units designed for heavy industrial use, more robust, better methods of connection, heat is conducted directly to the sink without an intermediate insulating layer. You can choose diodes of sufficient rating without the questionable issues of parallel devices.

May be cheaper solution once you get over 50A.

Flux

[commanda]

If you can, you need 3 which are stud anode, and the other 3 stud kathode. Then you can use 2 heatsinks with 3 diodes on each heatsink.

Amanda

[mowind]

The got three of them on ebay. they are rated at 1600v and 100 amps.from what i understand from the seller one end is the + and the other end is the - . is this correct ? thanks .

[Flux]

They look like stud cathode ones. You can mount 3 on one heatsink for the positive but you will need 3 separate sinks for the negative line.

Not a big issue but check that he doesn't also have stud anode diodes that would save you some work.

Flux

[kurt]

stud diods work great as blocking diods for using dc motors as gens. for alternators bridge rectafyers are much easyer to deal with.

[BruceDownunder]

This is how I mounted 6 stud Diodes.  I used mica washers to insulate each one  from the heatsink

Bruce

[kurt]

i think this is the pic you wanted to show bruce

[alancorey]

Right, I was wondering if anyone was going to mention this.  You used to be able to get a little hardware kit (sometimes included) that had the mica washers, a terminal that was like a washer with an ear to put under the diode body and you soldered your wire to the ear, and also a little nylon ring that goes around the stud inside the hole to keep the stud from shorting out on the heat sink if it slides sideways.  With the right kit there's no reason to look for anode or cathode on the stud.  Don't forget heat sink compound though.

  Alan