Bridge Rectifier Cost?

[Shadow]

 Where is everyone finding bridge rectifiers in Canada?..I found 3 yesterday at an Electronics shop, 40 amp 27.00 each! Anyone have any automotive  numbers that would work? I see them in the states for 5 bucks each.

[timewarp]

Check with Princess Auto, They had some big diodes in the latest catalog.

[jimovonz]

Use the rectifier from a junked auto alternator. Auto electricians usually have bins full of them and are usually free. They come with heat sinks which is a bonus. The rectifier from my 140A/24V alt is rated at 200amps and is quite small compared to some of the setups I've seen on this board. There is no reason why you couldn't use two or more from smaller alts to increase the amp rating if you need too.

[marv]

Shadow,   Here's one supplier; Active Components 1350 Matheson Blvd. Unit 2,

                                                 Mississauga, Ont.

                                               tel; 905-238-8825

There is 3-4 different suppliers in the same strip plaza. Also lots of surplus stuff to.

I'm pretty sure this one is a 600volt- 35amp bridge rectifier, if not they do have them.

http://www.active-tech.ca/b2c/redirect.cfm?pn=2&lang=eng&locationID=itemDetail_3&itemID=
W06G%20-%202pk

Marv.

[picmacmillan]

i was just at princess auto on saturday...we looked all over for some rectifiers and all we found was some little ones...we even asked and they said they didn't have them....also bought a few of their 9 1/2" heat sinks , but they are small and i wouldn't recommend buying them...the tower cable is on sale though....i would sure be interested where to get some good heat sinks ...any ideas? pickster

[marv]

Sorry shadow wrong link. This is the 600volt 40amp bridge rectifier. ($18.51 CDN.)

http://www.active-tech.ca/b2c/redirect.cfm?pn=2&lang=eng&locationID=itemDetail_3&itemID=
NTE5342

Marv.

[picmacmillan]

 below is the rectifiers i used for a 3 phase genny...some say they aren't big enough...i don't know if a genny will kick out 25 amps per phase?...i think they are good enough for the machine i built...i believe these were about 4-5 bucks each....ifred got them for me...i would be interested on fineing the store to order some more...ifred, if you see this,..tell me which store we got these from?....thanks....pickster

[srnoth]

Hey pictser,

Those look like some rectifiers I got from radioshack the other day for $3.29:

http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&product%5Fid=276-1185

I bought two of them to increase the amperage, although I actually didn't need (or expect) all that amperage, but I got the extra one just to be on the safe side.

The work great for me, I have them in some oil to prevent them from over heating, not sure how good an idea that is, but I seems to work. I use them on my homemade 20 amp AC to DC 12v battery charger. I would recommend them to anyone.

Cheers,

Stephen.